Flame Graph Reset Zoom Search sync_array_wait_event (4 samples, 0.16%) fget (1 samples, 0.04%) __find_lock_page (1 samples, 0.04%) buf_page_get_gen (3 samples, 0.12%) system_call_fastpath (44 samples, 1.80%) system_call_fastpath (4 samples, 0.16%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (20 samples, 0.82%) __bitmap_intersects (1 samples, 0.04%) pthread_cond_wait@@GLIBC_2.3.2 (4 samples, 0.16%) sysret_audit (1 samples, 0.04%) __lll_unlock_wake (1 samples, 0.04%) update_curr (2 samples, 0.08%) x86_pmu_enable (9 samples, 0.37%) scsi_io_completion (1 samples, 0.04%) flush_work (42 samples, 1.71%) finish_task_switch (24 samples, 0.98%) LinuxAIOHandler::poll (5 samples, 0.20%) do_command (1,013 samples, 41.36%) do_command os_file_write_retry (26 samples, 1.06%) fetch_task_cputime (1 samples, 0.04%) perf_pmu_enable (4 samples, 0.16%) [libpthread-2.17.so] (5 samples, 0.20%) fil_aio_wait (110 samples, 4.49%) fil_a.. LinuxAIOHandler::find_completed_slot (3 samples, 0.12%) system_call_fastpath (14 samples, 0.57%) perf_ctx_unlock (5 samples, 0.20%) __schedule (4 samples, 0.16%) aio_read_events (1 samples, 0.04%) [mysqld] (15 samples, 0.61%) __clock_gettime (1 samples, 0.04%) __schedule (8 samples, 0.33%) hrtimer_nanosleep (13 samples, 0.53%) __schedule (42 samples, 1.71%) [mysqld] (5 samples, 0.20%) __perf_event_task_sched_in (8 samples, 0.33%) Fil_shard::space_flush (90 samples, 3.67%) Fil_.. __schedule (20 samples, 0.82%) do_futex (8 samples, 0.33%) do_fsync (89 samples, 3.63%) do_f.. __perf_event_task_sched_in (20 samples, 0.82%) scsi_request_fn (1 samples, 0.04%) Buf_fetch_other::get (3 samples, 0.12%) perf_pmu_enable (4 samples, 0.16%) PolicyMutex<TTASEventMutex<GenericPolicy> >::enter (1 samples, 0.04%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (362 samples, 14.78%) std::thread::_State_im.. finish_task_switch (8 samples, 0.33%) pfs_memory_alloc_vc (1 samples, 0.04%) syscall (1 samples, 0.04%) __schedule (4 samples, 0.16%) unroll_tree_refs (1 samples, 0.04%) pthread_cond_timedwait@@GLIBC_2.3.2 (4 samples, 0.16%) Double_write::write_dblwr_pages (26 samples, 1.06%) __vdso_clock_gettime (1 samples, 0.04%) xlog_sync (2 samples, 0.08%) system_call_fastpath (4 samples, 0.16%) ib_srv_wkr-3 (10 samples, 0.41%) pthread_mutex_unlock@plt (1 samples, 0.04%) os_aio_handler (19 samples, 0.78%) sys_nanosleep (4 samples, 0.16%) error_swapgs (1 samples, 0.04%) [libpthread-2.17.so] (14 samples, 0.57%) try_to_wake_up (1 samples, 0.04%) futex_wait_queue_me (48 samples, 1.96%) f.. fsp_is_undo_tablespace (1 samples, 0.04%) schedule (5 samples, 0.20%) [mysqld] (5 samples, 0.20%) kmem_cache_alloc_node (1 samples, 0.04%) schedule (8 samples, 0.33%) pthread_cond_timedwait@@GLIBC_2.3.2 (4 samples, 0.16%) lru_cache_add (1 samples, 0.04%) [mysqld] (1 samples, 0.04%) deactivate_task (1 samples, 0.04%) init_request_from_bio (1 samples, 0.04%) __do_softirq (1 samples, 0.04%) futex_wait (4 samples, 0.16%) sysret_audit (1 samples, 0.04%) schedule_timeout (24 samples, 0.98%) __perf_event_task_sched_in (4 samples, 0.16%) __x86_indirect_thunk_rax (1 samples, 0.04%) [unknown] (51 samples, 2.08%) [.. dequeue_task_fair (1 samples, 0.04%) futex_wait (4 samples, 0.16%) perf_pmu_enable (4 samples, 0.16%) flush_tlb_page (3 samples, 0.12%) pthread_cond_wait@@GLIBC_2.3.2 (4 samples, 0.16%) scsi_request_fn (1 samples, 0.04%) finish_task_switch (41 samples, 1.67%) [unknown] (5 samples, 0.20%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (90 samples, 3.67%) std:.. sys_futex (1 samples, 0.04%) futex_wait_queue_me (4 samples, 0.16%) pthread_mutex_unlock (3 samples, 0.12%) [libpthread-2.17.so] (9 samples, 0.37%) __perf_event_task_sched_in (24 samples, 0.98%) __perf_event_task_sched_in (24 samples, 0.98%) pthread_cond_wait@@GLIBC_2.3.2 (4 samples, 0.16%) __audit_syscall_exit (2 samples, 0.08%) __schedule (8 samples, 0.33%) call_softirq (1 samples, 0.04%) fil_aio_wait (20 samples, 0.82%) timerqueue_add (1 samples, 0.04%) __perf_event_task_sched_in (4 samples, 0.16%) [mysqld] (824 samples, 33.65%) [mysqld] schedule (42 samples, 1.71%) xlog_cil_force_lsn (16 samples, 0.65%) check_cfs_rq_runtime (2 samples, 0.08%) __perf_event_task_sched_in (4 samples, 0.16%) os_event::wait_time_low (4 samples, 0.16%) perf_pmu_enable (4 samples, 0.16%) unroll_tree_refs (1 samples, 0.04%) do_notify_resume (2 samples, 0.08%) [libpthread-2.17.so] (4 samples, 0.16%) futex_wait (15 samples, 0.61%) iomap_write_actor (1 samples, 0.04%) schedule (19 samples, 0.78%) do_futex (4 samples, 0.16%) perf_pmu_enable (4 samples, 0.16%) system_call_fastpath (1 samples, 0.04%) rec_init_offsets (2 samples, 0.08%) __schedule (19 samples, 0.78%) do_nanosleep (5 samples, 0.20%) rec_get_nth_field_offs (2 samples, 0.08%) buf_refresh_io_stats_all (1 samples, 0.04%) __perf_event_task_sched_in (16 samples, 0.65%) [mysqld] (135 samples, 5.51%) [mysqld] sched_clock (1 samples, 0.04%) queue_unplugged (4 samples, 0.16%) sys_futex (1 samples, 0.04%) futex_wait_queue_me (22 samples, 0.90%) finish_task_switch (32 samples, 1.31%) trx_commit_low (1 samples, 0.04%) timerqueue_add (1 samples, 0.04%) sd_init_command (1 samples, 0.04%) sys_futex (29 samples, 1.18%) os_file_set_size (4 samples, 0.16%) [unknown] (91 samples, 3.72%) [unk.. task_work_run (2 samples, 0.08%) ib_io_wr-1 (110 samples, 4.49%) ib_io.. do_futex (4 samples, 0.16%) hrtimer_nanosleep (4 samples, 0.16%) bio_alloc_bioset (1 samples, 0.04%) do_nanosleep (4 samples, 0.16%) __schedule (24 samples, 0.98%) _cond_resched (4 samples, 0.16%) sys_nanosleep (4 samples, 0.16%) system_call_after_swapgs (5 samples, 0.20%) __schedule (13 samples, 0.53%) srv_worker_thread (5 samples, 0.20%) perf_pmu_enable (20 samples, 0.82%) blk_flush_plug_list (2 samples, 0.08%) __schedule (22 samples, 0.90%) pagevec_lru_move_fn (1 samples, 0.04%) __list_del_entry (1 samples, 0.04%) pthread_cond_timedwait@@GLIBC_2.3.2 (50 samples, 2.04%) p.. [mysqld] (5 samples, 0.20%) smp_apic_timer_interrupt (1 samples, 0.04%) _fil_io (5 samples, 0.20%) [mysqld] (25 samples, 1.02%) try_to_wake_up (1 samples, 0.04%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (5 samples, 0.20%) system_call_fastpath (4 samples, 0.16%) [mysqld] (104 samples, 4.25%) [mysq.. __schedule (8 samples, 0.33%) scsi_prep_state_check (1 samples, 0.04%) retint_signal (1 samples, 0.04%) wake_up_q (1 samples, 0.04%) blk_peek_request (2 samples, 0.08%) ret_from_intr (1 samples, 0.04%) pthread_cond_timedwait@@GLIBC_2.3.2 (4 samples, 0.16%) sys_futex (4 samples, 0.16%) __schedule (14 samples, 0.57%) [mysqld] (4 samples, 0.16%) __audit_syscall_exit (2 samples, 0.08%) ib_src_main (10 samples, 0.41%) pick_next_task_idle (2 samples, 0.08%) change_pte_range (2 samples, 0.08%) HazardPointer::set (1 samples, 0.04%) __perf_event_task_sched_in (17 samples, 0.69%) dd::cache::Dictionary_client::acquire_uncached<dd::Tablespace> (1 samples, 0.04%) update_curr (1 samples, 0.04%) deactivate_task (2 samples, 0.08%) __schedule (18 samples, 0.73%) btr_cur_latch_leaves (4 samples, 0.16%) do_softirq (1 samples, 0.04%) kmem_cache_alloc_node (2 samples, 0.08%) mntput (1 samples, 0.04%) [unknown] (1 samples, 0.04%) queue_unplugged (1 samples, 0.04%) [libpthread-2.17.so] (25 samples, 1.02%) __x86_indirect_thunk_rax (2 samples, 0.08%) dequeue_entity (1 samples, 0.04%) __strcpy_sse2_unaligned (1 samples, 0.04%) futex_wait (4 samples, 0.16%) pthread_cond_timedwait@@GLIBC_2.3.2 (4 samples, 0.16%) finish_task_switch (4 samples, 0.16%) buf_page_io_complete (42 samples, 1.71%) __lll_unlock_wake (1 samples, 0.04%) Double_write::write_complete (94 samples, 3.84%) Doub.. system_call_after_swapgs (1 samples, 0.04%) __irqentry_text_start (1 samples, 0.04%) change_prot_numa (1 samples, 0.04%) perf_pmu_enable (4 samples, 0.16%) dblwr::write (5 samples, 0.20%) tick_do_update_jiffies64 (1 samples, 0.04%) _raw_spin_lock_irqsave (1 samples, 0.04%) [mysqld] (5 samples, 0.20%) finish_task_switch (4 samples, 0.16%) blk_flush_plug_list (2 samples, 0.08%) wait_for_completion (4 samples, 0.16%) trx_commit (4 samples, 0.16%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (91 samples, 3.72%) std:.. aio_complete (1 samples, 0.04%) __perf_event_task_sched_in (16 samples, 0.65%) do_futex (4 samples, 0.16%) schedule (4 samples, 0.16%) Double_write::write_complete (69 samples, 2.82%) Do.. sysret_audit (1 samples, 0.04%) system_call_after_swapgs (1 samples, 0.04%) retint_swapgs (1 samples, 0.04%) ttwu_do_activate (1 samples, 0.04%) filemap_write_and_wait_range (2 samples, 0.08%) dequeue_entity (1 samples, 0.04%) xlog_sync (5 samples, 0.20%) system_call_fastpath (29 samples, 1.18%) finish_task_switch (4 samples, 0.16%) perf_pmu_enable (4 samples, 0.16%) sys_fsync (24 samples, 0.98%) change_protection (1 samples, 0.04%) blk_queue_bio (5 samples, 0.20%) megasas_cmd_type (1 samples, 0.04%) __perf_event_task_sched_in (4 samples, 0.16%) release_pages (3 samples, 0.12%) perf_pmu_enable (28 samples, 1.14%) xfs_log_force_lsn (62 samples, 2.53%) xf.. sys_futex (4 samples, 0.16%) [unknown] (5 samples, 0.20%) xfs_log_commit_cil (1 samples, 0.04%) do_futex (49 samples, 2.00%) d.. sysret_audit (2 samples, 0.08%) perf_pmu_enable (4 samples, 0.16%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (60 samples, 2.45%) st.. Fil_shard::space_flush (52 samples, 2.12%) F.. do_notify_resume (7 samples, 0.29%) sysret_signal (2 samples, 0.08%) sys_fsync (4 samples, 0.16%) __hrtimer_run_queues (2 samples, 0.08%) futex_wake (1 samples, 0.04%) get_request (1 samples, 0.04%) xfs_start_page_writeback (1 samples, 0.04%) schedule (32 samples, 1.31%) Fil_shard::space_flush (41 samples, 1.67%) blk_rq_bio_prep (1 samples, 0.04%) system_call_fastpath (4 samples, 0.16%) system_call_fastpath (4 samples, 0.16%) perf_pmu_enable (17 samples, 0.69%) Double_write::enqueue (5 samples, 0.20%) sys_io_submit (3 samples, 0.12%) change_protection (2 samples, 0.08%) do_futex (4 samples, 0.16%) __alloc_pages_nodemask (1 samples, 0.04%) finish_task_switch (4 samples, 0.16%) syscall (175 samples, 7.15%) syscall __x86_indirect_thunk_rax (1 samples, 0.04%) [mysqld] (5 samples, 0.20%) schedule (35 samples, 1.43%) handle_mm_fault (2 samples, 0.08%) [libpthread-2.17.so] (45 samples, 1.84%) [.. do_writepages (2 samples, 0.08%) error_sti (2 samples, 0.08%) [libpthread-2.17.so] (19 samples, 0.78%) Fil_shard::space_flush (65 samples, 2.65%) Fi.. __schedule (24 samples, 0.98%) read_events (13 samples, 0.53%) log_update_limits_low (1 samples, 0.04%) finish_task_switch (20 samples, 0.82%) __perf_event_task_sched_in (33 samples, 1.35%) Buf_fetch<Buf_fetch_normal>::single_page (5 samples, 0.20%) pagevec_lru_move_fn (3 samples, 0.12%) buf_flush_do_batch (45 samples, 1.84%) b.. finish_task_switch (4 samples, 0.16%) innobase_parse_hint_from_comment (1 samples, 0.04%) system_call_fastpath (50 samples, 2.04%) s.. ib_io_wr-4 (91 samples, 3.72%) ib_i.. _raw_spin_lock_irqsave (1 samples, 0.04%) schedule_hrtimeout_range_clock (4 samples, 0.16%) sys_nanosleep (5 samples, 0.20%) sysret_audit (1 samples, 0.04%) xpl_worker-2 (4 samples, 0.16%) srv_purge_coordinator_thread (104 samples, 4.25%) srv_p.. dict_build_table_def (9 samples, 0.37%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (10 samples, 0.41%) finish_task_switch (4 samples, 0.16%) AIO::release (1 samples, 0.04%) mempool_alloc_slab (1 samples, 0.04%) finish_task_switch (12 samples, 0.49%) update_time (1 samples, 0.04%) apic_timer_interrupt (1 samples, 0.04%) load_balance (1 samples, 0.04%) [mysqld] (5 samples, 0.20%) [libpthread-2.17.so] (50 samples, 2.04%) [.. audit_filter_syscall (1 samples, 0.04%) sys_io_getevents (20 samples, 0.82%) do_numa_page (1 samples, 0.04%) system_call_fastpath (8 samples, 0.33%) sys_futex (5 samples, 0.20%) [mysqld] (5 samples, 0.20%) flush_smp_call_function_queue (1 samples, 0.04%) apic_timer_interrupt (1 samples, 0.04%) Log_DDL::delete_by_ids (1 samples, 0.04%) __audit_syscall_exit (1 samples, 0.04%) perf_pmu_enable (12 samples, 0.49%) source_load (1 samples, 0.04%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (20 samples, 0.82%) perf_ctx_unlock (4 samples, 0.16%) vm_normal_page (3 samples, 0.12%) wait_for_completion (8 samples, 0.33%) __perf_event_task_sched_in (8 samples, 0.33%) dequeue_task_fair (2 samples, 0.08%) int_signal (2 samples, 0.08%) __perf_event_task_sched_in (4 samples, 0.16%) xfs_file_fsync (89 samples, 3.63%) xfs_.. [mysqld] (20 samples, 0.82%) [mysqld] (37 samples, 1.51%) pthread_self (1 samples, 0.04%) [unknown] (5 samples, 0.20%) free_pcppages_bulk (2 samples, 0.08%) trx_commit_low (4 samples, 0.16%) __audit_syscall_entry (2 samples, 0.08%) futex_wait (4 samples, 0.16%) schedule (5 samples, 0.20%) Detached_thread::operator (5 samples, 0.20%) pthread_self (3 samples, 0.12%) finish_task_switch (4 samples, 0.16%) fsp_reserve_free_extents (25 samples, 1.02%) blkdev_issue_flush (1 samples, 0.04%) do_nanosleep (5 samples, 0.20%) blkdev_issue_flush (1 samples, 0.04%) perf_pmu_enable (32 samples, 1.31%) __schedule (4 samples, 0.16%) hrtimer_nanosleep (8 samples, 0.33%) perf_pmu_enable (4 samples, 0.16%) futex_wait (5 samples, 0.20%) perf_pmu_enable (4 samples, 0.16%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (5 samples, 0.20%) __wake_up_bit (1 samples, 0.04%) [libaio.so.1.0.1] (19 samples, 0.78%) autoremove_wake_function (1 samples, 0.04%) __schedule (4 samples, 0.16%) schedule (42 samples, 1.71%) change_prot_numa (1 samples, 0.04%) schedule_hrtimeout_range (5 samples, 0.20%) os_aio_handler (19 samples, 0.78%) x86_pmu_enable (4 samples, 0.16%) sys_pwrite64 (1 samples, 0.04%) __perf_event_task_sched_in (4 samples, 0.16%) [mysqld] (65 samples, 2.65%) [m.. xlog_sync (6 samples, 0.24%) plist_del (1 samples, 0.04%) Detached_thread::operator (5 samples, 0.20%) down_read_trylock (1 samples, 0.04%) xlog_state_release_iclog (4 samples, 0.16%) sys_fsync (45 samples, 1.84%) s.. pick_next_task_idle (1 samples, 0.04%) __xfs_buf_submit (3 samples, 0.12%) __perf_event_task_sched_in (4 samples, 0.16%) numa_migrate_prep (5 samples, 0.20%) update_wall_time (1 samples, 0.04%) perf_pmu_enable (4 samples, 0.16%) update_min_vruntime (1 samples, 0.04%) ep_poll (5 samples, 0.20%) LinuxAIOHandler::poll (14 samples, 0.57%) move_to_new_page (5 samples, 0.20%) perf_pmu_enable (16 samples, 0.65%) page_fault (1 samples, 0.04%) pthread_cond_wait@@GLIBC_2.3.2 (8 samples, 0.33%) ib_log_writer (37 samples, 1.51%) crypto_shash_update (1 samples, 0.04%) sysret_signal (1 samples, 0.04%) _raw_qspin_lock_irq (1 samples, 0.04%) tick_do_update_jiffies64 (1 samples, 0.04%) Detached_thread::operator (5 samples, 0.20%) ktime_get_ts64 (15 samples, 0.61%) [unknown] (1 samples, 0.04%) __schedule (8 samples, 0.33%) sysret_audit (2 samples, 0.08%) log_flush_notifier (51 samples, 2.08%) l.. __schedule (4 samples, 0.16%) ctx_sched_out (1 samples, 0.04%) audit_filter_syscall (2 samples, 0.08%) intel_pstate_update_util (1 samples, 0.04%) [mysqld] (91 samples, 3.72%) [mys.. __perf_event_task_sched_out (1 samples, 0.04%) queue_unplugged (1 samples, 0.04%) schedule (8 samples, 0.33%) innobase_truncate<dd::Table>::exec (873 samples, 35.65%) innobase_truncate<dd::Table>::exec __schedule (4 samples, 0.16%) scsi_dispatch_cmd (1 samples, 0.04%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (63 samples, 2.57%) st.. dd::cache::Storage_adapter::get<dd::Primary_id_key, dd::Tablespace> (1 samples, 0.04%) schedule (16 samples, 0.65%) account_entity_dequeue (1 samples, 0.04%) schedule_timeout (20 samples, 0.82%) hrtimer_nanosleep (4 samples, 0.16%) dequeue_task_fair (2 samples, 0.08%) tick_sched_do_timer (1 samples, 0.04%) [mysqld] (5 samples, 0.20%) rw_lock_s_lock_spin (4 samples, 0.16%) ib_srv_lock_to (5 samples, 0.20%) thread_group_cputime_adjusted (1 samples, 0.04%) perf_pmu_enable (36 samples, 1.47%) __filemap_fdatawrite_range (2 samples, 0.08%) buf_pool_get_oldest_modification_approx (74 samples, 3.02%) buf.. ib_buf_lru-4 (5 samples, 0.20%) futex_wait (4 samples, 0.16%) task_numa_work (1 samples, 0.04%) log_checkpointer (60 samples, 2.45%) lo.. __audit_syscall_entry (8 samples, 0.33%) skb_release_head_state (1 samples, 0.04%) futex_wait_queue_me (1 samples, 0.04%) __perf_event_task_sched_in (4 samples, 0.16%) [libaio.so.1.0.1] (36 samples, 1.47%) blk_done_softirq (1 samples, 0.04%) apic_timer_interrupt (1 samples, 0.04%) system_call_fastpath (4 samples, 0.16%) [mysqld] (1 samples, 0.04%) schedule (47 samples, 1.92%) s.. schedule_timeout (16 samples, 0.65%) blk_flush_plug_list (4 samples, 0.16%) __mem_cgroup_uncharge_common (1 samples, 0.04%) generic_make_request (1 samples, 0.04%) schedule (24 samples, 0.98%) __schedule (5 samples, 0.20%) wake_up_q (1 samples, 0.04%) [mysqld] (4 samples, 0.16%) [unknown] (5 samples, 0.20%) xfs_file_fsync (4 samples, 0.16%) __schedule (4 samples, 0.16%) __audit_syscall_exit (2 samples, 0.08%) futex_wait (29 samples, 1.18%) buf_flush_do_batch (1 samples, 0.04%) dequeue_entity (1 samples, 0.04%) rmap_walk (1 samples, 0.04%) ib_wqueue_timedwait (5 samples, 0.20%) perf_pmu_enable (4 samples, 0.16%) do_futex (4 samples, 0.16%) page_fault (127 samples, 5.19%) page_f.. elv_rqhash_find (1 samples, 0.04%) flush_work (8 samples, 0.33%) __sg_alloc_table (1 samples, 0.04%) futex_wait (4 samples, 0.16%) [mysqld] (20 samples, 0.82%) Clone_persist_gtid::periodic_write (6 samples, 0.24%) find_busiest_group (1 samples, 0.04%) do_futex (11 samples, 0.45%) Fil_shard::flush_file_spaces (1 samples, 0.04%) clockid_to_kclock (3 samples, 0.12%) xlog_sync (4 samples, 0.16%) update_cfs_rq_blocked_load (1 samples, 0.04%) smp_apic_timer_interrupt (2 samples, 0.08%) perf_pmu_enable (12 samples, 0.49%) hrtimer_nanosleep (5 samples, 0.20%) perf_pmu_enable (12 samples, 0.49%) scsi_request_fn (2 samples, 0.08%) __perf_event_task_sched_in (4 samples, 0.16%) __wake_up_common (1 samples, 0.04%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (91 samples, 3.72%) std:.. [mysqld] (4 samples, 0.16%) innobase_basic_ddl::delete_impl<dd::Table> (824 samples, 33.65%) innobase_basic_ddl::delete_impl<dd::Table> finish_task_switch (20 samples, 0.82%) system_call_fastpath (16 samples, 0.65%) schedule (30 samples, 1.22%) dispatch_sql_command (1,009 samples, 41.20%) dispatch_sql_command [mysqld] (5 samples, 0.20%) change_protection (1 samples, 0.04%) futex_wait (10 samples, 0.41%) do_blockdev_direct_IO (25 samples, 1.02%) [mysqld] (44 samples, 1.80%) x86_pmu_enable (4 samples, 0.16%) std::__detail::_List_node_base::_M_hook (1 samples, 0.04%) pthread_mutex_lock (1 samples, 0.04%) _xfs_buf_ioapply (1 samples, 0.04%) mpol_misplaced (2 samples, 0.08%) pick_next_task_fair (7 samples, 0.29%) finish_task_switch (17 samples, 0.69%) mempool_alloc (1 samples, 0.04%) sys_nanosleep (13 samples, 0.53%) system_call_after_swapgs (1 samples, 0.04%) __audit_syscall_exit (2 samples, 0.08%) ut_delay (1 samples, 0.04%) schedule (5 samples, 0.20%) Encryption::Encryption (1 samples, 0.04%) buf_page_io_complete (1 samples, 0.04%) system_call_fastpath (1 samples, 0.04%) pthread_cond_timedwait@@GLIBC_2.3.2 (5 samples, 0.20%) do_nanosleep (8 samples, 0.33%) schedule (29 samples, 1.18%) perf_pmu_enable (4 samples, 0.16%) __schedule (1 samples, 0.04%) task_numa_work (1 samples, 0.04%) dequeue_entity (1 samples, 0.04%) xlog_bdstrat (1 samples, 0.04%) finish_task_switch (4 samples, 0.16%) pthread_mutex_unlock (1 samples, 0.04%) schedule_timeout (24 samples, 0.98%) start_thread (1,013 samples, 41.36%) start_thread system_call_fastpath (1 samples, 0.04%) sysret_check (1 samples, 0.04%) Detached_thread::operator (5 samples, 0.20%) finish_task_switch (44 samples, 1.80%) radix_tree_tag_set (1 samples, 0.04%) __schedule (32 samples, 1.31%) audit_filter_syscall (3 samples, 0.12%) buf_flush_do_batch (1 samples, 0.04%) srv_error_monitor_thread (6 samples, 0.24%) buf_page_io_complete (54 samples, 2.20%) b.. schedule (4 samples, 0.16%) finish_task_switch (36 samples, 1.47%) futex_wait_queue_me (4 samples, 0.16%) xlog_pack_data.isra.7 (1 samples, 0.04%) futex_wait (8 samples, 0.33%) dequeue_entity (1 samples, 0.04%) [libpthread-2.17.so] (90 samples, 3.67%) [lib.. pthread_self@plt (4 samples, 0.16%) deadline_add_request (1 samples, 0.04%) xfs_file_fsync (43 samples, 1.76%) [mysqld] (26 samples, 1.06%) schedule (8 samples, 0.33%) system_call_fastpath (43 samples, 1.76%) sysret_audit (2 samples, 0.08%) schedule (22 samples, 0.90%) perf_pmu_enable (16 samples, 0.65%) enqueue_task_fair (1 samples, 0.04%) [mysqld] (51 samples, 2.08%) [.. [unknown] (2 samples, 0.08%) dequeue_task_fair (1 samples, 0.04%) wake_up_q (1 samples, 0.04%) os_file_flush_func (1 samples, 0.04%) srv_purge_coordinator_thread (104 samples, 4.25%) srv_p.. os_event::wait_time_low (51 samples, 2.08%) o.. do_blockdev_direct_IO (1 samples, 0.04%) free_hot_cold_page (1 samples, 0.04%) futex_wait_queue_me (8 samples, 0.33%) page_fault (2 samples, 0.08%) ttwu_do_activate (1 samples, 0.04%) ib_io_rd-2 (20 samples, 0.82%) schedule (4 samples, 0.16%) __schedule (37 samples, 1.51%) hrtimer_interrupt (2 samples, 0.08%) do_futex (4 samples, 0.16%) finish_task_switch (4 samples, 0.16%) __perf_event_task_sched_in (4 samples, 0.16%) sys_pwrite64 (25 samples, 1.02%) [mysqld] (1 samples, 0.04%) __xfs_trans_commit (1 samples, 0.04%) perf_pmu_enable (20 samples, 0.82%) futex_wait_queue_me (4 samples, 0.16%) sg_pool_alloc (1 samples, 0.04%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (5 samples, 0.20%) alloc_misplaced_dst_page (1 samples, 0.04%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (10 samples, 0.41%) ut_delay (1 samples, 0.04%) __check_object_size (14 samples, 0.57%) x86_pmu_enable (4 samples, 0.16%) LinuxAIOHandler::poll (49 samples, 2.00%) L.. scsi_request_fn (1 samples, 0.04%) row_search_index_entry (5 samples, 0.20%) __perf_event_task_sched_in (37 samples, 1.51%) srv_monitor_thread (5 samples, 0.20%) _xfs_buf_ioapply (3 samples, 0.12%) os_event::wait_time_low (6 samples, 0.24%) perf_pmu_enable (4 samples, 0.16%) __perf_event_task_sched_in (20 samples, 0.82%) sys_futex (4 samples, 0.16%) Fil_system::flush_file_spaces (94 samples, 3.84%) Fil_.. timekeeping_update (1 samples, 0.04%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (5 samples, 0.20%) perf_ctx_unlock (4 samples, 0.16%) system_call_fastpath (20 samples, 0.82%) Sql_cmd_truncate_table::truncate_base (873 samples, 35.65%) Sql_cmd_truncate_table::truncate_base schedule (4 samples, 0.16%) futex_wait_queue_me (4 samples, 0.16%) __alloc_pages_nodemask (2 samples, 0.08%) ib_pg_flush-2 (5 samples, 0.20%) __perf_event_task_sched_in (8 samples, 0.33%) thread_group_cputime (1 samples, 0.04%) Fil_shard::space_extend (25 samples, 1.02%) fil_aio_wait (90 samples, 3.67%) fil_.. ib_buf_lru-6 (5 samples, 0.20%) smp_call_function_single (2 samples, 0.08%) init_request_from_bio (2 samples, 0.08%) put_prev_task_fair (2 samples, 0.08%) auditsys (10 samples, 0.41%) [unknown] (5 samples, 0.20%) __schedule (29 samples, 1.18%) lookup_ioctx (1 samples, 0.04%) hrtimer_nanosleep (4 samples, 0.16%) [mysqld] (1 samples, 0.04%) perf_pmu_enable (4 samples, 0.16%) __schedule (8 samples, 0.33%) io_submit (3 samples, 0.12%) Double_write::force_flush (40 samples, 1.63%) yield_task_fair (4 samples, 0.16%) __x86_indirect_thunk_rax (1 samples, 0.04%) unlock_page (1 samples, 0.04%) [mysqld] (4 samples, 0.16%) dict_build_tablespace_for_table (9 samples, 0.37%) syscall (1 samples, 0.04%) dd::fill_table_and_parts_tablespace_names (1 samples, 0.04%) system_call_fastpath (1 samples, 0.04%) dequeue_entity (1 samples, 0.04%) log_free_check_capacity (1 samples, 0.04%) pthread_cond_wait@@GLIBC_2.3.2 (4 samples, 0.16%) blk_queue_start_tag (1 samples, 0.04%) sysret_check (1 samples, 0.04%) dd::Transaction_ro::~Transaction_ro (1 samples, 0.04%) buf_flush_do_batch (1 samples, 0.04%) sys_futex (4 samples, 0.16%) finish_task_switch (4 samples, 0.16%) do_page_fault (2 samples, 0.08%) dput (1 samples, 0.04%) [mysqld] (119 samples, 4.86%) [mysqld] futex_wait (4 samples, 0.16%) Fil_shard::space_flush (25 samples, 1.02%) deactivate_task (1 samples, 0.04%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (51 samples, 2.08%) s.. native_flush_tlb_others (1 samples, 0.04%) update_curr (1 samples, 0.04%) xfs_file_dio_aio_write (1 samples, 0.04%) schedule (18 samples, 0.73%) task_work_run (1 samples, 0.04%) os_event::wait_time_low (5 samples, 0.20%) finish_task_switch (28 samples, 1.14%) do_futex (16 samples, 0.65%) lru_cache_add (4 samples, 0.16%) Detached_thread::operator (5 samples, 0.20%) dequeue_entity (2 samples, 0.08%) lock_wait_timeout_thread (5 samples, 0.20%) migrate_pages (16 samples, 0.65%) deactivate_task (1 samples, 0.04%) pick_next_task_idle (1 samples, 0.04%) Double_write::prepare (1 samples, 0.04%) [libaio.so.1.0.1] (5 samples, 0.20%) [libpthread-2.17.so] (4 samples, 0.16%) hrtimer_nanosleep (4 samples, 0.16%) do_futex (23 samples, 0.94%) sys_fsync (89 samples, 3.63%) sys_.. __perf_event_task_sched_in (8 samples, 0.33%) copy_page_rep (3 samples, 0.12%) buf_page_io_complete (69 samples, 2.82%) bu.. [mysqld] (134 samples, 5.47%) [mysqld] migrate_pages (6 samples, 0.24%) wait_for_completion (20 samples, 0.82%) finish_task_switch (8 samples, 0.33%) schedule (20 samples, 0.82%) submit_bio (1 samples, 0.04%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (5 samples, 0.20%) connection (1,016 samples, 41.49%) connection [mysqld] (10 samples, 0.41%) [mysqld] (10 samples, 0.41%) mutex_enter_inline<PolicyMutex<TTASEventMutex<GenericPolicy> > > (6 samples, 0.24%) perf_pmu_enable (4 samples, 0.16%) [unknown] (60 samples, 2.45%) [u.. schedule (4 samples, 0.16%) __queue_work (1 samples, 0.04%) __schedule (4 samples, 0.16%) Buf_fetch<Buf_fetch_other>::single_page (3 samples, 0.12%) [unknown] (10 samples, 0.41%) schedule (4 samples, 0.16%) [mysqld] (14 samples, 0.57%) fil_aio_wait (15 samples, 0.61%) schedule_hrtimeout_range_clock (5 samples, 0.20%) Double_write::write_complete (54 samples, 2.20%) D.. schedule (4 samples, 0.16%) alloc_request_simple (1 samples, 0.04%) __blk_run_queue (2 samples, 0.08%) retint_userspace_restore_args (20 samples, 0.82%) Fil_shard::get_space_by_id (1 samples, 0.04%) _int_malloc (1 samples, 0.04%) system_call_fastpath (41 samples, 1.67%) xfs_log_force_lsn (4 samples, 0.16%) perf_pmu_enable (4 samples, 0.16%) [mysqld] (5 samples, 0.20%) __blockdev_direct_IO (1 samples, 0.04%) elv_merge (1 samples, 0.04%) try_to_wake_up (1 samples, 0.04%) queue_unplugged (2 samples, 0.08%) hrtimer_interrupt (1 samples, 0.04%) finish_task_switch (4 samples, 0.16%) x86_pmu_enable (4 samples, 0.16%) do_notify_resume (1 samples, 0.04%) xfs_file_aio_write (1 samples, 0.04%) xfs_file_fsync (50 samples, 2.04%) x.. que_run_threads (1 samples, 0.04%) LinuxAIOHandler::poll (23 samples, 0.94%) __lru_cache_add (4 samples, 0.16%) system_call (2 samples, 0.08%) ib_srv_wkr-2 (10 samples, 0.41%) perf_pmu_enable (4 samples, 0.16%) futex_wait_queue_me (4 samples, 0.16%) __schedule (4 samples, 0.16%) __perf_event_task_sched_in (20 samples, 0.82%) apic_timer_interrupt (1 samples, 0.04%) __perf_event_task_sched_in (40 samples, 1.63%) elv_set_request (1 samples, 0.04%) schedule (4 samples, 0.16%) start_thread (4 samples, 0.16%) task_numa_migrate (4 samples, 0.16%) [mysqld] (3 samples, 0.12%) ibuf_merge_in_background (1 samples, 0.04%) ptep_clear_flush (1 samples, 0.04%) sys_io_getevents (10 samples, 0.41%) Log_files_capacity::update_status_variables (3 samples, 0.12%) pthread_mutex_lock (1 samples, 0.04%) get_task_policy.part.26 (1 samples, 0.04%) io_schedule (24 samples, 0.98%) [libaio.so.1.0.1] (14 samples, 0.57%) vio_socket_io_wait (4 samples, 0.16%) scsi_init_sgtable (1 samples, 0.04%) sys_io_getevents (13 samples, 0.53%) list_sort (1 samples, 0.04%) LinuxAIOHandler::poll (15 samples, 0.61%) do_futex (4 samples, 0.16%) megasas_queue_command (1 samples, 0.04%) do_nanosleep (4 samples, 0.16%) migrate_misplaced_page (6 samples, 0.24%) retint_signal (1 samples, 0.04%) __schedule (4 samples, 0.16%) __scsi_get_command (1 samples, 0.04%) change_protection (7 samples, 0.29%) dequeue_task_fair (1 samples, 0.04%) schedule (12 samples, 0.49%) xpl_worker-1 (4 samples, 0.16%) row_create_table_for_mysql (9 samples, 0.37%) migrate_misplaced_page (17 samples, 0.69%) do_nanosleep (13 samples, 0.53%) do_softirq (1 samples, 0.04%) xfs_buf_lock (1 samples, 0.04%) HazardPointer::set (2 samples, 0.08%) local_clock (1 samples, 0.04%) sys_futex (5 samples, 0.20%) rec_init_offsets_comp_ordinary (1 samples, 0.04%) Buf_fetch<Buf_fetch_other>::lookup (3 samples, 0.12%) mempool_alloc (1 samples, 0.04%) [libaio.so.1.0.1] (10 samples, 0.41%) [mysqld] (4 samples, 0.16%) __perf_event_task_sched_out (1 samples, 0.04%) sysret_check (2 samples, 0.08%) do_futex (4 samples, 0.16%) list_del (1 samples, 0.04%) system_call_after_swapgs (34 samples, 1.39%) ut_list_remove<ut_list_base<fil_space_t, ut_list_base_explicit_getter<fil_space_t, &fil_space_t::unflushed_spaces> > > (1 samples, 0.04%) os_file_write_func (1 samples, 0.04%) Double_write::write_complete (41 samples, 1.67%) schedule (24 samples, 0.98%) [mysqld] (26 samples, 1.06%) finish_task_switch (16 samples, 0.65%) PolicyMutex<TTASEventMutex<GenericPolicy> >::enter (1 samples, 0.04%) schedule (4 samples, 0.16%) [unknown] (5 samples, 0.20%) __perf_event_task_sched_in (4 samples, 0.16%) task_work_run (7 samples, 0.29%) mem_cgroup_charge_statistics.isra.20 (1 samples, 0.04%) do_softirq (1 samples, 0.04%) perf_pmu_enable (12 samples, 0.49%) schedule (20 samples, 0.82%) trx_commit_for_mysql (1 samples, 0.04%) __x86_indirect_thunk_rax (1 samples, 0.04%) iomap_write_begin (1 samples, 0.04%) pthread_cond_broadcast@@GLIBC_2.3.2 (1 samples, 0.04%) __schedule (4 samples, 0.16%) ib_pg_flush_co (366 samples, 14.94%) ib_pg_flush_co __GI___getrusage (1 samples, 0.04%) change_prot_numa (7 samples, 0.29%) audit_filter_inodes (1 samples, 0.04%) free_hot_cold_page (3 samples, 0.12%) clockevents_program_event (1 samples, 0.04%) perf_pmu_enable (40 samples, 1.63%) __perf_event_task_sched_in (20 samples, 0.82%) [mysqld] (110 samples, 4.49%) [mysq.. blk_queue_bio (1 samples, 0.04%) perf_pmu_enable (28 samples, 1.14%) system_call_fastpath (24 samples, 0.98%) pthread_mutex_lock (1 samples, 0.04%) blk_finish_plug (1 samples, 0.04%) system_call_after_swapgs (1 samples, 0.04%) dequeue_task_fair (1 samples, 0.04%) [mysqld] (5 samples, 0.20%) futex_wait (4 samples, 0.16%) finish_task_switch (4 samples, 0.16%) system_call_fastpath (19 samples, 0.78%) [libpthread-2.17.so] (51 samples, 2.08%) [.. submit_bio (4 samples, 0.16%) fil_aio_wait (119 samples, 4.86%) fil_ai.. __schedule (4 samples, 0.16%) Fil_system::flush_file_spaces (53 samples, 2.16%) F.. ib_clone_gtid (7 samples, 0.29%) scsi_end_request (1 samples, 0.04%) finish_task_switch (4 samples, 0.16%) x86_pmu_enable (8 samples, 0.33%) Fil_shard::flush_file_spaces (93 samples, 3.80%) Fil_.. change_protection (1 samples, 0.04%) mysql_rm_table_no_locks (135 samples, 5.51%) mysql_r.. xfs_do_writepage (2 samples, 0.08%) schedule (4 samples, 0.16%) do_futex (8 samples, 0.33%) do_futex (4 samples, 0.16%) __schedule (20 samples, 0.82%) write_cache_pages (2 samples, 0.08%) remove_migration_pte (1 samples, 0.04%) read_events (29 samples, 1.18%) do_nanosleep (4 samples, 0.16%) blk_flush_plug_list (1 samples, 0.04%) update_curr (4 samples, 0.16%) sys_futex (4 samples, 0.16%) getrusage (1 samples, 0.04%) [mysqld] (1 samples, 0.04%) do_fsync (4 samples, 0.16%) ib_log_checkpt (60 samples, 2.45%) ib.. system_call_fastpath (5 samples, 0.20%) update_rq_clock.part.75 (2 samples, 0.08%) call_function_single_interrupt (1 samples, 0.04%) buf_page_get_gen (5 samples, 0.20%) __xfs_buf_submit (4 samples, 0.16%) futex_wait_queue_me (4 samples, 0.16%) native_sched_clock (1 samples, 0.04%) trx_commit_for_mysql (4 samples, 0.16%) hrtimer_start_range_ns (1 samples, 0.04%) __blk_run_queue (1 samples, 0.04%) dequeue_entity (1 samples, 0.04%) __cond_resched (4 samples, 0.16%) srv_worker_thread (5 samples, 0.20%) posix_ktime_get_ts (1 samples, 0.04%) deactivate_task (1 samples, 0.04%) xlog_cksum (1 samples, 0.04%) update_curr (1 samples, 0.04%) __schedule (20 samples, 0.82%) xfs_file_aio_write (1 samples, 0.04%) update_blocked_averages (1 samples, 0.04%) migrate_page (3 samples, 0.12%) [mysqld] (20 samples, 0.82%) ha_create_table (873 samples, 35.65%) ha_create_table innobase_truncate<dd::Table>::truncate (873 samples, 35.65%) innobase_truncate<dd::Table>::truncate schedule_timeout (20 samples, 0.82%) task_ctx_sched_out (1 samples, 0.04%) do_futex (5 samples, 0.20%) __perf_event_task_sched_in (20 samples, 0.82%) os_aio_handler (10 samples, 0.41%) native_sched_clock (1 samples, 0.04%) xfs_file_aio_write (1 samples, 0.04%) [libpthread-2.17.so] (4 samples, 0.16%) x86_pmu_enable (16 samples, 0.65%) system_call_fastpath (4 samples, 0.16%) xfs_log_force_lsn (40 samples, 1.63%) x86_pmu_enable (5 samples, 0.20%) [mysqld] (1 samples, 0.04%) [mysqld] (5 samples, 0.20%) _raw_qspin_lock (1 samples, 0.04%) perf_ctx_unlock (4 samples, 0.16%) sys_io_getevents (44 samples, 1.80%) sys_futex (23 samples, 0.94%) rcu_check_callbacks (1 samples, 0.04%) unix_stream_read_generic (1 samples, 0.04%) run_timer_softirq (1 samples, 0.04%) do_sync_write (1 samples, 0.04%) pick_next_entity (1 samples, 0.04%) __blk_run_queue (1 samples, 0.04%) system_call_fastpath (5 samples, 0.20%) futex_wait_queue_me (5 samples, 0.20%) os_aio_handler (24 samples, 0.98%) schedule (9 samples, 0.37%) page_fault (7 samples, 0.29%) deactivate_task (1 samples, 0.04%) rw_lock_sx_lock_func (1 samples, 0.04%) x86_pmu_enable (4 samples, 0.16%) Detached_thread::operator (5 samples, 0.20%) finish_task_switch (24 samples, 0.98%) local_apic_timer_interrupt (1 samples, 0.04%) perf_pmu_enable (16 samples, 0.65%) pthread_cond_timedwait@@GLIBC_2.3.2 (6 samples, 0.24%) account_entity_enqueue (1 samples, 0.04%) futex_wait (1 samples, 0.04%) do_io_submit (2 samples, 0.08%) system_call_fastpath (4 samples, 0.16%) sys_fsync (4 samples, 0.16%) poll_schedule_timeout (4 samples, 0.16%) [mysqld] (5 samples, 0.20%) perf_ctx_unlock (4 samples, 0.16%) __memset_sse2 (1 samples, 0.04%) __schedule (4 samples, 0.16%) sys_futex (4 samples, 0.16%) apic_timer_interrupt (1 samples, 0.04%) error_swapgs (14 samples, 0.57%) __schedule (20 samples, 0.82%) sysret_audit (1 samples, 0.04%) [mysqld] (90 samples, 3.67%) [mys.. handle_mm_fault (1 samples, 0.04%) os_event::wait_time_low (25 samples, 1.02%) ngs::Scheduler_dynamic::worker (4 samples, 0.16%) schedule (8 samples, 0.33%) srv_monitor_thread (5 samples, 0.20%) perf_pmu_enable (16 samples, 0.65%) generic_smp_call_function_single_interrupt (1 samples, 0.04%) sys_nanosleep (4 samples, 0.16%) LinuxAIOHandler::poll (40 samples, 1.63%) __xfs_buf_submit (6 samples, 0.24%) intel_pstate_update_util (1 samples, 0.04%) __schedule (13 samples, 0.53%) dblwr::force_flush (40 samples, 1.63%) __mod_zone_page_state (1 samples, 0.04%) pick_next_task_fair (1 samples, 0.04%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (5 samples, 0.20%) Double_write::write_pages (26 samples, 1.06%) system_call_fastpath (5 samples, 0.20%) [mysqld] (5 samples, 0.20%) [mysqld] (5 samples, 0.20%) do_numa_page (6 samples, 0.24%) finish_task_switch (20 samples, 0.82%) schedule_timeout (8 samples, 0.33%) futex_wait_queue_me (8 samples, 0.33%) perf_pmu_enable (4 samples, 0.16%) Double_write::write_data_pages (6 samples, 0.24%) irq_exit (1 samples, 0.04%) sys_io_getevents (18 samples, 0.73%) [mysqld] (1 samples, 0.04%) _cond_resched (4 samples, 0.16%) aio_read_events (1 samples, 0.04%) sysret_audit (1 samples, 0.04%) start_thread (5 samples, 0.20%) call_function_single_interrupt (1 samples, 0.04%) change_pte_range (1 samples, 0.04%) buf_flush_page (5 samples, 0.20%) Log_DDL::insert_free_tree_log (4 samples, 0.16%) perf_pmu_enable (4 samples, 0.16%) srv_worker_thread (10 samples, 0.41%) migrate_page_copy (1 samples, 0.04%) scsi_prep_fn (2 samples, 0.08%) [libaio.so.1.0.1] (32 samples, 1.31%) Log_DDL::post_ddl (1 samples, 0.04%) Fil_shard::do_io (3 samples, 0.12%) perf_pmu_enable (4 samples, 0.16%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (6 samples, 0.24%) futex_wait_queue_me (4 samples, 0.16%) [mysqld] (5 samples, 0.20%) finish_task_switch (4 samples, 0.16%) ngs::Scheduler_dynamic::worker (4 samples, 0.16%) submit_bio (1 samples, 0.04%) blk_finish_plug (1 samples, 0.04%) __perf_event_task_sched_in (4 samples, 0.16%) ib_srv_purge (104 samples, 4.25%) ib_sr.. mutex_enter_inline<PolicyMutex<TTASEventMutex<GenericPolicy> > > (4 samples, 0.16%) dequeue_task_fair (1 samples, 0.04%) schedule (42 samples, 1.71%) xfs_log_force_lsn (87 samples, 3.55%) xfs.. innobase_basic_ddl::create_impl<dd::Table> (49 samples, 2.00%) i.. x86_pmu_enable (4 samples, 0.16%) blk_flush_plug_list (2 samples, 0.08%) _xfs_buf_ioapply (7 samples, 0.29%) os_event::get_wait_timelimit (1 samples, 0.04%) system_call_fastpath (60 samples, 2.45%) sy.. kfree (1 samples, 0.04%) std::vector<unsigned int, ut::allocator<unsigned int, ut::detail::allocator_base_pfs<unsigned int> > >::_M_realloc_insert<unsigned int const&> (1 samples, 0.04%) put_prev_entity (1 samples, 0.04%) do_fsync (62 samples, 2.53%) do.. blk_finish_plug (2 samples, 0.08%) finish_task_switch (41 samples, 1.67%) finish_task_switch (40 samples, 1.63%) do_nanosleep (45 samples, 1.84%) d.. futex_wait (5 samples, 0.20%) read_events (18 samples, 0.73%) system_call_fastpath (4 samples, 0.16%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (20 samples, 0.82%) ptep_clear_flush (3 samples, 0.12%) sysret_check (1 samples, 0.04%) os_aio_handler (41 samples, 1.67%) finish_task_switch (8 samples, 0.33%) perf_pmu_enable (4 samples, 0.16%) [libpthread-2.17.so] (25 samples, 1.02%) xlog_sync (3 samples, 0.12%) perf_pmu_enable (4 samples, 0.16%) system_call_fastpath (4 samples, 0.16%) system_call_fastpath (1 samples, 0.04%) btr_drop_ahi_for_table (824 samples, 33.65%) btr_drop_ahi_for_table remove_migration_ptes (1 samples, 0.04%) mysql_execute_command (1,009 samples, 41.20%) mysql_execute_command get_page_from_freelist (2 samples, 0.08%) __schedule (30 samples, 1.22%) ktime_get_ts64 (5 samples, 0.20%) TTASEventMutex<AggregateMutexStatsPolicy>::exit (1 samples, 0.04%) log_write_notifier (25 samples, 1.02%) do_futex (5 samples, 0.20%) system_call_fastpath (5 samples, 0.20%) kmem_cache_alloc (1 samples, 0.04%) [mysqld] (1 samples, 0.04%) [mysqld] (5 samples, 0.20%) rebalance_domains (1 samples, 0.04%) __schedule (4 samples, 0.16%) os_event::wait_time_low (4 samples, 0.16%) trx_commit (4 samples, 0.16%) system_call_fastpath (10 samples, 0.41%) finish_task_switch (4 samples, 0.16%) Buf_fetch<Buf_fetch_normal>::single_page (4 samples, 0.16%) smp_apic_timer_interrupt (1 samples, 0.04%) pick_next_task_fair (1 samples, 0.04%) xlog_cil_force_lsn (24 samples, 0.98%) sys_fsync (41 samples, 1.67%) finish_task_switch (4 samples, 0.16%) schedule (4 samples, 0.16%) [mysqld] (15 samples, 0.61%) Detached_thread::operator (5 samples, 0.20%) xlog_bdstrat (3 samples, 0.12%) x86_pmu_enable (8 samples, 0.33%) get_and_lock_tablespace_names (1 samples, 0.04%) xfs_file_fsync (62 samples, 2.53%) xf.. __schedule (4 samples, 0.16%) system_call_fastpath (4 samples, 0.16%) apic_timer_interrupt (1 samples, 0.04%) rmap_walk (1 samples, 0.04%) __wake_up (1 samples, 0.04%) system_call_fastpath (50 samples, 2.04%) s.. generic_make_request (1 samples, 0.04%) __xfs_buf_submit (4 samples, 0.16%) perf_pmu_enable (4 samples, 0.16%) __do_softirq (1 samples, 0.04%) handle_mm_fault (6 samples, 0.24%) __perf_event_task_sched_in (36 samples, 1.47%) task_numa_work (7 samples, 0.29%) do_page_fault (2 samples, 0.08%) Detached_thread::operator (5 samples, 0.20%) Detached_thread::operator (104 samples, 4.25%) Detac.. __audit_syscall_exit (1 samples, 0.04%) row_ins_clust_index_entry (1 samples, 0.04%) __schedule (4 samples, 0.16%) futex_wait_queue_me (4 samples, 0.16%) queue_unplugged (1 samples, 0.04%) dict_create_index_tree_in_mem (34 samples, 1.39%) os_event_reset (1 samples, 0.04%) fil_write_initial_pages (4 samples, 0.16%) __schedule (4 samples, 0.16%) x86_pmu_enable (4 samples, 0.16%) iomap_file_buffered_write (1 samples, 0.04%) [libpthread-2.17.so] (4 samples, 0.16%) __blk_run_queue (4 samples, 0.16%) [mysqld] (20 samples, 0.82%) xlog_state_switch_iclogs (1 samples, 0.04%) isolate_lru_page (1 samples, 0.04%) do_futex (1 samples, 0.04%) migrate_page_states (1 samples, 0.04%) futex_wait_queue_me (4 samples, 0.16%) audit_filter_syscall (7 samples, 0.29%) xfs_map_blocks (1 samples, 0.04%) elv_rb_find (1 samples, 0.04%) futex_wait_queue_me (4 samples, 0.16%) mutex_enter_inline<PolicyMutex<TTASEventMutex<GenericPolicy> > > (35 samples, 1.43%) __perf_event_task_sched_in (4 samples, 0.16%) fil_aio_wait (5 samples, 0.20%) [mysqld] (3 samples, 0.12%) sock_recvmsg (1 samples, 0.04%) mutex_enter_inline<PolicyMutex<TTASEventMutex<GenericPolicy> > > (7 samples, 0.29%) deactivate_task (2 samples, 0.08%) change_pte_range (1 samples, 0.04%) ib_pg_flush-1 (5 samples, 0.20%) ib_io_ibuf (10 samples, 0.41%) xlog_bdstrat (8 samples, 0.33%) schedule_hrtimeout_range (4 samples, 0.16%) srv_check_activity (2 samples, 0.08%) __schedule (46 samples, 1.88%) _.. hrtimer_start_range_ns (1 samples, 0.04%) consume_skb (1 samples, 0.04%) sys_nanosleep (4 samples, 0.16%) mutex_enter_inline<PolicyMutex<TTASEventMutex<GenericPolicy> > > (1 samples, 0.04%) [mysqld] (9 samples, 0.37%) __perf_event_task_sched_in (4 samples, 0.16%) __audit_syscall_exit (1 samples, 0.04%) syscall (1 samples, 0.04%) task_numa_fault (14 samples, 0.57%) stop_two_cpus (4 samples, 0.16%) __do_softirq (1 samples, 0.04%) run_rebalance_domains (1 samples, 0.04%) que_run_threads (6 samples, 0.24%) ib_io_rd-1 (15 samples, 0.61%) _raw_spin_lock_irqsave (1 samples, 0.04%) k_getrusage (1 samples, 0.04%) perf_pmu_enable (12 samples, 0.49%) list_del (1 samples, 0.04%) finish_task_switch (12 samples, 0.49%) pthread_mutex_lock (1 samples, 0.04%) __do_page_fault (1 samples, 0.04%) __perf_event_task_sched_in (32 samples, 1.31%) sys_futex (4 samples, 0.16%) do_fsync (45 samples, 1.84%) d.. __perf_event_task_sched_in (40 samples, 1.63%) __do_page_fault (7 samples, 0.29%) std::_Rb_tree_increment (1 samples, 0.04%) dio_bio_end_aio (1 samples, 0.04%) sys_fsync (43 samples, 1.76%) task_numa_work (1 samples, 0.04%) Fil_shard::get_space_by_id (1 samples, 0.04%) do_futex (1 samples, 0.04%) putback_lru_page (1 samples, 0.04%) enqueue_hrtimer (1 samples, 0.04%) blk_add_timer (1 samples, 0.04%) do_futex (4 samples, 0.16%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (104 samples, 4.25%) std::.. [mysqld] (5 samples, 0.20%) mempool_alloc (1 samples, 0.04%) task_cputime (1 samples, 0.04%) xlog_state_release_iclog (2 samples, 0.08%) os_event::wait_low (1 samples, 0.04%) [mysqld] (5 samples, 0.20%) account_entity_enqueue (1 samples, 0.04%) [libpthread-2.17.so] (62 samples, 2.53%) [l.. __unqueue_futex (1 samples, 0.04%) perf_pmu_enable (4 samples, 0.16%) perf_pmu_enable (8 samples, 0.33%) auditsys (1 samples, 0.04%) finish_task_switch (8 samples, 0.33%) fil_aio_wait (14 samples, 0.57%) finish_task_switch (20 samples, 0.82%) log_write_up_to (4 samples, 0.16%) [unknown] (51 samples, 2.08%) [.. finish_task_switch (4 samples, 0.16%) __schedule (42 samples, 1.71%) xfs_inode_item_size (1 samples, 0.04%) system_call_fastpath (62 samples, 2.53%) sy.. unix_stream_recvmsg (1 samples, 0.04%) migrate_swap (4 samples, 0.16%) do_futex (1 samples, 0.04%) wait_for_completion (24 samples, 0.98%) perf_ctx_unlock (4 samples, 0.16%) os_file_write_retry (1 samples, 0.04%) schedule (21 samples, 0.86%) __perf_event_task_sched_in (12 samples, 0.49%) xlog_state_release_iclog (3 samples, 0.12%) smp_apic_timer_interrupt (1 samples, 0.04%) scsi_host_alloc_command (1 samples, 0.04%) dequeue_task_fair (1 samples, 0.04%) os_event::wait_time_low (5 samples, 0.20%) blk_queue_bio (1 samples, 0.04%) finish_task_switch (24 samples, 0.98%) change_prot_numa (2 samples, 0.08%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (5 samples, 0.20%) schedule (37 samples, 1.51%) row_ins_step (1 samples, 0.04%) schedule_timeout (42 samples, 1.71%) [libpthread-2.17.so] (4 samples, 0.16%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (51 samples, 2.08%) s.. tick_sched_handle (1 samples, 0.04%) buf_page_io_complete (1 samples, 0.04%) schedule (29 samples, 1.18%) sys_nanosleep (47 samples, 1.92%) s.. std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (5 samples, 0.20%) hrtimer_nanosleep (4 samples, 0.16%) srv_worker_thread (10 samples, 0.41%) create_table_info_t::create_table_update_dict (6 samples, 0.24%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (5 samples, 0.20%) static_key_enabled (1 samples, 0.04%) [unknown] (1 samples, 0.04%) __perf_event_task_sched_in (4 samples, 0.16%) crc_1 (1 samples, 0.04%) [mysqld] (1 samples, 0.04%) sys_clock_gettime (52 samples, 2.12%) s.. __list_del_entry (1 samples, 0.04%) __lll_lock_wait (1 samples, 0.04%) __schedule (4 samples, 0.16%) do_softirq (1 samples, 0.04%) x86_pmu_enable (4 samples, 0.16%) generic_exec_single (2 samples, 0.08%) ib_srv_mon (5 samples, 0.20%) ib_pg_flush-3 (5 samples, 0.20%) os_event::wait_time_low (6 samples, 0.24%) blk_update_request (1 samples, 0.04%) finish_task_switch (25 samples, 1.02%) [mysqld] (1 samples, 0.04%) [libaio.so.1.0.1] (15 samples, 0.61%) tick_program_event (1 samples, 0.04%) deactivate_task (1 samples, 0.04%) io_schedule_timeout (24 samples, 0.98%) sys_io_getevents (14 samples, 0.57%) try_to_unmap_one (5 samples, 0.20%) smp_call_function_single (1 samples, 0.04%) Log_DDL::write_free_tree_log (4 samples, 0.16%) sys_sched_yield (19 samples, 0.78%) __blockdev_direct_IO (25 samples, 1.02%) do_fsync (24 samples, 0.98%) [unknown] (91 samples, 3.72%) [unk.. system_call_fastpath (4 samples, 0.16%) dict_stats_thread (5 samples, 0.20%) log_sync_flush_lsn (116 samples, 4.74%) log_s.. schedule (4 samples, 0.16%) [unknown] (362 samples, 14.78%) [unknown] posix_ktime_get_ts (4 samples, 0.16%) ib_io_wr-3 (120 samples, 4.90%) ib_io_.. system_call_fastpath (5 samples, 0.20%) __clock_gettime (1 samples, 0.04%) schedule_user (4 samples, 0.16%) native_flush_tlb_others (2 samples, 0.08%) sys_futex (4 samples, 0.16%) LinuxAIOHandler::find_completed_slot (1 samples, 0.04%) futex_wait (4 samples, 0.16%) buf_page_get_gen (1 samples, 0.04%) sys_futex (8 samples, 0.33%) smp_call_function_single_interrupt (1 samples, 0.04%) __cond_resched (4 samples, 0.16%) flush_work (20 samples, 0.82%) __perf_event_task_sched_in (4 samples, 0.16%) do_futex (4 samples, 0.16%) [unknown] (104 samples, 4.25%) [unkn.. rec_init_offsets_comp_ordinary (7 samples, 0.29%) xlog_state_release_iclog (5 samples, 0.20%) futex_wait (4 samples, 0.16%) finish_task_switch (4 samples, 0.16%) finish_task_switch (4 samples, 0.16%) sys_futex (4 samples, 0.16%) x86_pmu_enable (4 samples, 0.16%) [mysqld] (99 samples, 4.04%) [mys.. ctx_sched_out (1 samples, 0.04%) deactivate_task (1 samples, 0.04%) pthread_cond_timedwait@@GLIBC_2.3.2 (12 samples, 0.49%) finish_task_switch (4 samples, 0.16%) lock_table_names (1 samples, 0.04%) __perf_event_task_sched_in (4 samples, 0.16%) __perf_event_task_sched_in (4 samples, 0.16%) __schedule (9 samples, 0.37%) futex_wake (1 samples, 0.04%) do_futex (5 samples, 0.20%) futex_wait (4 samples, 0.16%) [unknown] (5 samples, 0.20%) ib_io_rd-3 (20 samples, 0.82%) ha_remove_a_node_to_page (5 samples, 0.20%) srv_master_thread (1 samples, 0.04%) lock_wait_timeout_thread (5 samples, 0.20%) system_call_fastpath (4 samples, 0.16%) sysret_check (8 samples, 0.33%) tick_sched_timer (2 samples, 0.08%) buf_page_io_complete (95 samples, 3.88%) buf_.. [mysqld] (20 samples, 0.82%) perf_pmu_enable (20 samples, 0.82%) call_timer_fn (1 samples, 0.04%) get_request (1 samples, 0.04%) scsi_init_io (1 samples, 0.04%) __memset_sse2 (1 samples, 0.04%) sys_epoll_wait (5 samples, 0.20%) get_page_from_freelist (1 samples, 0.04%) __schedule (5 samples, 0.20%) get_request (1 samples, 0.04%) __perf_event_task_sched_in (4 samples, 0.16%) move_to_new_page (2 samples, 0.08%) [mysqld] (5 samples, 0.20%) __schedule (12 samples, 0.49%) LinuxAIOHandler::poll (35 samples, 1.43%) xlog_sync (8 samples, 0.33%) ib_io_wr-2 (90 samples, 3.67%) ib_i.. __audit_syscall_entry (2 samples, 0.08%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (119 samples, 4.86%) std::t.. [mysqld] (1,013 samples, 41.36%) [mysqld] __schedule (21 samples, 0.86%) sys_recvfrom (1 samples, 0.04%) sys_futex (4 samples, 0.16%) wake_up_process (1 samples, 0.04%) Buf_fetch<Buf_fetch_normal>::single_page (1 samples, 0.04%) futex_wait (4 samples, 0.16%) read_events (44 samples, 1.80%) dequeue_task_fair (1 samples, 0.04%) sys_nanosleep (5 samples, 0.20%) do_fsync (4 samples, 0.16%) ktime_get_ts64 (1 samples, 0.04%) schedule (24 samples, 0.98%) __blk_run_queue (1 samples, 0.04%) Sql_cmd_truncate_table::execute (873 samples, 35.65%) Sql_cmd_truncate_table::execute xfs_file_dio_aio_write (25 samples, 1.02%) finish_task_switch (20 samples, 0.82%) path_put (2 samples, 0.08%) do_nanosleep (4 samples, 0.16%) [libpthread-2.17.so] (1 samples, 0.04%) hrtimer_nanosleep (5 samples, 0.20%) finish_task_switch (4 samples, 0.16%) xfs_file_aio_write_checks (1 samples, 0.04%) update_curr (1 samples, 0.04%) audit_filter_inodes (1 samples, 0.04%) __perf_event_task_sched_in (28 samples, 1.14%) finish_task_switch (4 samples, 0.16%) retint_signal (1 samples, 0.04%) [mysqld] (5 samples, 0.20%) finish_task_switch (4 samples, 0.16%) system_call_after_swapgs (1 samples, 0.04%) schedule (4 samples, 0.16%) pthread_cond_timedwait@@GLIBC_2.3.2 (4 samples, 0.16%) xlog_state_release_iclog (8 samples, 0.33%) buf_flush_write_complete (1 samples, 0.04%) perf_pmu_enable (4 samples, 0.16%) futex_wait_queue_me (5 samples, 0.20%) system_call_fastpath (20 samples, 0.82%) blk_finish_plug (2 samples, 0.08%) system_call_fastpath (1 samples, 0.04%) read_tsc (5 samples, 0.20%) pthread_cond_timedwait@@GLIBC_2.3.2 (6 samples, 0.24%) do_page_fault (7 samples, 0.29%) sd_setup_read_write_cmnd (1 samples, 0.04%) [unknown] (5 samples, 0.20%) [mysqld] (1 samples, 0.04%) find_vma (2 samples, 0.08%) Log_file_handle::do_io (1 samples, 0.04%) do_notify_resume (1 samples, 0.04%) finish_task_switch (4 samples, 0.16%) xfs_vm_writepages (2 samples, 0.08%) buf_get_n_pending_read_ios (5 samples, 0.20%) task_numa_work (2 samples, 0.08%) copy_page_rep (1 samples, 0.04%) scsi_setup_cmnd (1 samples, 0.04%) Fil_shard::flush_file_spaces (53 samples, 2.16%) F.. trx_commit_low (4 samples, 0.16%) buf_page_get_gen (4 samples, 0.16%) mempool_alloc (1 samples, 0.04%) raw_notifier_call_chain (1 samples, 0.04%) xfs_file_fsync (4 samples, 0.16%) [libpthread-2.17.so] (5 samples, 0.20%) blk_peek_request (1 samples, 0.04%) enqueue_entity (1 samples, 0.04%) __schedule (4 samples, 0.16%) xfs_file_fsync (45 samples, 1.84%) x.. __test_set_page_writeback (1 samples, 0.04%) hrtimer_nanosleep (46 samples, 1.88%) h.. xfs_file_dio_aio_write (1 samples, 0.04%) create_table_info_t::create_table (43 samples, 1.76%) mutex_enter_inline<PolicyMutex<TTASEventMutex<GenericPolicy> > > (1 samples, 0.04%) [mysqld] (1 samples, 0.04%) ngs::Scheduler_dynamic::wait_if_idle_then_delete_worker (4 samples, 0.16%) xlog_cil_force_lsn (8 samples, 0.33%) try_to_unmap (1 samples, 0.04%) task_work_run (1 samples, 0.04%) __schedule (4 samples, 0.16%) pthread_cond_timedwait@@GLIBC_2.3.2 (16 samples, 0.65%) finish_task_switch (4 samples, 0.16%) generic_make_request (4 samples, 0.16%) schedule (48 samples, 1.96%) s.. task_numa_work (1 samples, 0.04%) ib_dict_stats (5 samples, 0.20%) clockid_to_kclock (1 samples, 0.04%) native_set_pte_at (1 samples, 0.04%) system_call_fastpath (4 samples, 0.16%) [mysqld] (362 samples, 14.78%) [mysqld] system_call_fastpath (4 samples, 0.16%) read_tsc (1 samples, 0.04%) __audit_syscall_exit (1 samples, 0.04%) scsi_get_command (1 samples, 0.04%) btr_create (30 samples, 1.22%) activate_task (1 samples, 0.04%) buf_pool_get_oldest_modification_lwm (80 samples, 3.27%) buf.. _xfs_buf_ioapply (4 samples, 0.16%) __do_softirq (1 samples, 0.04%) audit_filter_syscall (1 samples, 0.04%) mutex_enter_inline<PolicyMutex<TTASEventMutex<GenericPolicy> > > (1 samples, 0.04%) Segment::write (1 samples, 0.04%) [mysqld] (5 samples, 0.20%) __audit_syscall_exit (18 samples, 0.73%) os_aio_handler (15 samples, 0.61%) SYSC_recvfrom (1 samples, 0.04%) os_event::get_wait_timelimit (1 samples, 0.04%) log_files_size_of_existing_files (3 samples, 0.12%) [mysqld] (91 samples, 3.72%) [mys.. smp_apic_timer_interrupt (1 samples, 0.04%) finish_task_switch (16 samples, 0.65%) flush_tlb_func (1 samples, 0.04%) do_futex (4 samples, 0.16%) numamigrate_isolate_page (1 samples, 0.04%) LinuxAIOHandler::find_completed_slot (3 samples, 0.12%) flush_work (16 samples, 0.65%) [libaio.so.1.0.1] (44 samples, 1.80%) xlog_bdstrat (6 samples, 0.24%) ib_srv_wkr-1 (5 samples, 0.20%) xfs_file_fsync (40 samples, 1.63%) find_busiest_group (1 samples, 0.04%) sys_futex (4 samples, 0.16%) dd::get_tablespace_name<dd::Index> (1 samples, 0.04%) retint_signal (1 samples, 0.04%) xlog_bdstrat (4 samples, 0.16%) xfs_vn_update_time (1 samples, 0.04%) xlog_cil_force_lsn (20 samples, 0.82%) task_work_run (1 samples, 0.04%) unix_destruct_scm (1 samples, 0.04%) get_futex_key (1 samples, 0.04%) ha_delete_table (134 samples, 5.47%) ha_dele.. Detached_thread::operator (10 samples, 0.41%) __elv_add_request (1 samples, 0.04%) enqueue_entity (1 samples, 0.04%) pthread_cond_timedwait@@GLIBC_2.3.2 (4 samples, 0.16%) pvclock_gtod_notify (1 samples, 0.04%) Double_write::write_to_datafile (6 samples, 0.24%) os_event::wait_time_low (54 samples, 2.20%) o.. pthread_cond_timedwait@@GLIBC_2.3.2 (4 samples, 0.16%) perf_pmu_enable (8 samples, 0.33%) ib_srv_err (6 samples, 0.24%) deactivate_task (1 samples, 0.04%) all (2,449 samples, 100%) btr_search_drop_page_hash_index (2 samples, 0.08%) perf_pmu_enable (16 samples, 0.65%) do_numa_page (1 samples, 0.04%) trx_undo_report_row_operation (1 samples, 0.04%) schedule (4 samples, 0.16%) _xfs_buf_ioapply (6 samples, 0.24%) finish_task_switch (12 samples, 0.49%) irq_exit (1 samples, 0.04%) load_balance (1 samples, 0.04%) dequeue_entity (2 samples, 0.08%) finish_task_switch (12 samples, 0.49%) xlog_cil_force_lsn (42 samples, 1.71%) get_pageblock_flags_group (1 samples, 0.04%) Buf_fetch<Buf_fetch_normal>::lookup (1 samples, 0.04%) os_aio_handler (14 samples, 0.57%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (10 samples, 0.41%) irq_exit (1 samples, 0.04%) mutex_enter_inline<PolicyMutex<TTASEventMutex<GenericPolicy> > > (4 samples, 0.16%) [libpthread-2.17.so] (43 samples, 1.76%) finish_task_switch (20 samples, 0.82%) perf_pmu_enable (16 samples, 0.65%) enqueue_task_fair (1 samples, 0.04%) os_aio_handler (5 samples, 0.20%) syscall (2 samples, 0.08%) cpuacct_charge (1 samples, 0.04%) rcu_note_context_switch (1 samples, 0.04%) delayed_work_timer_fn (1 samples, 0.04%) __perf_event_task_sched_in (16 samples, 0.65%) __perf_event_task_sched_in (40 samples, 1.63%) ha_innobase::truncate_impl (873 samples, 35.65%) ha_innobase::truncate_impl log_files_governor (65 samples, 2.65%) lo.. xfs_blkdev_issue_flush (1 samples, 0.04%) get_futex_key (1 samples, 0.04%) x86_pmu_enable (8 samples, 0.33%) finish_task_switch (4 samples, 0.16%) os_aio_handler (35 samples, 1.43%) schedule (4 samples, 0.16%) os_event::wait_time_low (4 samples, 0.16%) btr_cur_search_to_nth_level (5 samples, 0.20%) [mysqld] (1 samples, 0.04%) pthread_cond_timedwait@@GLIBC_2.3.2 (33 samples, 1.35%) x86_pmu_enable (16 samples, 0.65%) __schedule (4 samples, 0.16%) fsp_get_space_header_block (5 samples, 0.20%) mem_cgroup_end_migration (1 samples, 0.04%) log_write_up_to (4 samples, 0.16%) read_tsc (3 samples, 0.12%) blk_queue_bio (4 samples, 0.16%) activate_task (1 samples, 0.04%) hrtimer_nanosleep (18 samples, 0.73%) perf_pmu_enable (4 samples, 0.16%) xlog_state_release_iclog (6 samples, 0.24%) crc32c (1 samples, 0.04%) [mysqld] (1 samples, 0.04%) schedule (18 samples, 0.73%) system_call_fastpath (1 samples, 0.04%) update_curr (1 samples, 0.04%) x86_pmu_enable (4 samples, 0.16%) pthread_cond_wait@@GLIBC_2.3.2 (4 samples, 0.16%) sys_futex (1 samples, 0.04%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (65 samples, 2.65%) st.. __libc_recv (1 samples, 0.04%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (5 samples, 0.20%) scsi_request_fn (4 samples, 0.16%) Segment::write (26 samples, 1.06%) trx_commit (1 samples, 0.04%) __perf_event_task_sched_in (4 samples, 0.16%) x86_pmu_enable (4 samples, 0.16%) xfs_log_force_lsn (41 samples, 1.67%) audit_filter_syscall (1 samples, 0.04%) read_events (10 samples, 0.41%) perf_pmu_enable (8 samples, 0.33%) system_call_fastpath (4 samples, 0.16%) Fil_shard::flush_file_spaces (41 samples, 1.67%) perf_pmu_enable (20 samples, 0.82%) sys_io_getevents (29 samples, 1.18%) blk_rq_bio_prep (1 samples, 0.04%) ib_io_log (5 samples, 0.20%) __perf_event_task_sched_in (4 samples, 0.16%) run_rebalance_domains (1 samples, 0.04%) LinuxAIOHandler::collect (1 samples, 0.04%) row_drop_table_for_mysql (824 samples, 33.65%) row_drop_table_for_mysql do_nanosleep (4 samples, 0.16%) __xfs_buf_submit (7 samples, 0.29%) [libaio.so.1.0.1] (19 samples, 0.78%) schedule (4 samples, 0.16%) fil_aio_wait (20 samples, 0.82%) sys_futex (1 samples, 0.04%) system_call_fastpath (1 samples, 0.04%) os_event::wait_time_low (17 samples, 0.69%) mutex_enter_inline<PolicyMutex<TTASEventMutex<GenericPolicy> > > (1 samples, 0.04%) pthread_mutex_lock (1 samples, 0.04%) x86_pmu_enable (4 samples, 0.16%) [mysqld] (1 samples, 0.04%) sys_nanosleep (18 samples, 0.73%) migrate_page (2 samples, 0.08%) ib_log_flush (63 samples, 2.57%) ib.. system_call_after_swapgs (1 samples, 0.04%) Log_DDL::replay_by_thread_id (1 samples, 0.04%) __find_get_page (1 samples, 0.04%) generic_make_request (5 samples, 0.20%) sys_nanosleep (4 samples, 0.16%) sys_io_getevents (5 samples, 0.20%) trx_purge (1 samples, 0.04%) deactivate_task (1 samples, 0.04%) __perf_event_task_sched_in (24 samples, 0.98%) system_call_fastpath (4 samples, 0.16%) os_aio_func (3 samples, 0.12%) system_call_fastpath (18 samples, 0.73%) log_write_up_to (1 samples, 0.04%) llist_add_batch (1 samples, 0.04%) row_drop_table_for_mysql (134 samples, 5.47%) row_dro.. futex_wait_queue_me (4 samples, 0.16%) schedule (4 samples, 0.16%) put_page (1 samples, 0.04%) do_fsync (50 samples, 2.04%) d.. try_to_unmap (5 samples, 0.20%) sys_futex (49 samples, 2.00%) s.. ib_log_wr_notif (26 samples, 1.06%) put_prev_entity (1 samples, 0.04%) __perf_event_task_sched_in (20 samples, 0.82%) __rmqueue (1 samples, 0.04%) [mysqld] (63 samples, 2.57%) [m.. __schedule (4 samples, 0.16%) blk_finish_plug (4 samples, 0.16%) vio_read (4 samples, 0.16%) local_apic_timer_interrupt (2 samples, 0.08%) handle_mm_fault (72 samples, 2.94%) ha.. std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (5 samples, 0.20%) os_event_reset (2 samples, 0.08%) finish_task_switch (40 samples, 1.63%) system_call_fastpath (47 samples, 1.92%) s.. hrtimer_start_range_ns (1 samples, 0.04%) rec_get_offsets (13 samples, 0.53%) LinuxAIOHandler::find_completed_slot (2 samples, 0.08%) rec_init_offsets (1 samples, 0.04%) schedule (4 samples, 0.16%) schedule (15 samples, 0.61%) futex_requeue (1 samples, 0.04%) ib_buf_lru-1 (5 samples, 0.20%) alloc_request_simple (2 samples, 0.08%) __xfs_buf_submit (1 samples, 0.04%) system_call_fastpath (35 samples, 1.43%) deadline_merge (1 samples, 0.04%) __unqueue_futex (1 samples, 0.04%) [mysqld] (1 samples, 0.04%) [libpthread-2.17.so] (1 samples, 0.04%) add_wait_queue_exclusive (1 samples, 0.04%) ha_delete_hash_node (2 samples, 0.08%) __schedule (42 samples, 1.71%) alloc_request_simple (1 samples, 0.04%) dequeue_entity (2 samples, 0.08%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (5 samples, 0.20%) ib_buf_lru-7 (10 samples, 0.41%) [mysqld] (4 samples, 0.16%) sys_futex (4 samples, 0.16%) [mysqld] (10 samples, 0.41%) blk_flush_plug_list (1 samples, 0.04%) perf_pmu_enable (4 samples, 0.16%) futex_wait (4 samples, 0.16%) [mysqld] (90 samples, 3.67%) [mys.. do_sync_write (25 samples, 1.02%) __perf_event_task_sched_in (4 samples, 0.16%) do_notify_resume (1 samples, 0.04%) __schedule (4 samples, 0.16%) dequeue_task_fair (1 samples, 0.04%) try_to_wake_up (1 samples, 0.04%) __schedule (4 samples, 0.16%) __perf_event_task_sched_in (4 samples, 0.16%) os_event::wait_time_low (33 samples, 1.35%) flush_work (20 samples, 0.82%) perf_pmu_enable (20 samples, 0.82%) sys_futex (5 samples, 0.20%) apic_timer_interrupt (3 samples, 0.12%) __perf_event_task_sched_in (4 samples, 0.16%) submit_bio (4 samples, 0.16%) _copy_to_user (2 samples, 0.08%) perf_pmu_enable (4 samples, 0.16%) generic_make_request (1 samples, 0.04%) _raw_qspin_lock (1 samples, 0.04%) do_sys_poll (4 samples, 0.16%) hrtimer_cancel (1 samples, 0.04%) update_curr (1 samples, 0.04%) check_cfs_rq_runtime (1 samples, 0.04%) os_event::wait_time_low (12 samples, 0.49%) finish_task_switch (4 samples, 0.16%) [libpthread-2.17.so] (1 samples, 0.04%) __libc_pwrite64 (1 samples, 0.04%) change_pte_range (1 samples, 0.04%) pthread_cond_broadcast@@GLIBC_2.3.2 (1 samples, 0.04%) create_table_info_t::create_table_def (9 samples, 0.37%) do_futex (29 samples, 1.18%) schedule (4 samples, 0.16%) do_notify_resume (1 samples, 0.04%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (5 samples, 0.20%) sys_futex (4 samples, 0.16%) __lll_unlock_wake (4 samples, 0.16%) system_call_fastpath (5 samples, 0.20%) submit_bio (5 samples, 0.20%) run_timer_softirq (1 samples, 0.04%) __schedule (4 samples, 0.16%) call_softirq (1 samples, 0.04%) system_call_fastpath (8 samples, 0.33%) copy_user_enhanced_fast_string (1 samples, 0.04%) [mysqld] (7 samples, 0.29%) scsi_dispatch_cmd (1 samples, 0.04%) call_softirq (1 samples, 0.04%) page_simple_validate_new (1 samples, 0.04%) row_create_index_for_mysql (34 samples, 1.39%) os_event::wait_time_low (4 samples, 0.16%) __memset_sse2 (1 samples, 0.04%) innobase_basic_ddl::delete_impl<dd::Table> (134 samples, 5.47%) innobas.. wait_for_completion (16 samples, 0.65%) iomap_apply (1 samples, 0.04%) system_call_fastpath (4 samples, 0.16%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (14 samples, 0.57%) sys_pwrite64 (1 samples, 0.04%) update_curr (2 samples, 0.08%) std::chrono::_V2::steady_clock::now (4 samples, 0.16%) retint_careful (4 samples, 0.16%) __perf_event_task_sched_in (8 samples, 0.33%) vfs_write (1 samples, 0.04%) sysret_audit (2 samples, 0.08%) Log_file_handle::fsync (43 samples, 1.76%) malloc_consolidate (1 samples, 0.04%) futex_wait (4 samples, 0.16%) __perf_event_task_sched_in (4 samples, 0.16%) system_call_fastpath (13 samples, 0.53%) __perf_event_task_sched_in (4 samples, 0.16%) Log_file_handle::fsync (45 samples, 1.84%) L.. dequeue_task_fair (1 samples, 0.04%) numa_migrate_preferred (4 samples, 0.16%) __audit_syscall_exit (1 samples, 0.04%) [unknown] (5 samples, 0.20%) perf_pmu_enable (24 samples, 0.98%) system_call_fastpath (23 samples, 0.94%) perf_ctx_unlock (4 samples, 0.16%) ib_buf_lru-0 (5 samples, 0.20%) __schedule (47 samples, 1.92%) _.. task_ctx_sched_out (1 samples, 0.04%) system_call_fastpath (29 samples, 1.18%) __perf_event_task_sched_in (4 samples, 0.16%) irq_exit (1 samples, 0.04%) __schedule (5 samples, 0.20%) [mysqld] (175 samples, 7.15%) [mysqld] __x86_indirect_thunk_rax (1 samples, 0.04%) read_events (35 samples, 1.43%) system_call_fastpath (1 samples, 0.04%) [mysqld] (15 samples, 0.61%) futex_wait (48 samples, 1.96%) f.. fil_aio_wait (10 samples, 0.41%) finish_task_switch (4 samples, 0.16%) _xfs_buf_ioapply (4 samples, 0.16%) system_call_fastpath (3 samples, 0.12%) generic_make_request (4 samples, 0.16%) __schedule (24 samples, 0.98%) change_pte_range (7 samples, 0.29%) x86_pmu_enable (4 samples, 0.16%) grab_cache_page_write_begin (1 samples, 0.04%) __memset_sse2 (1 samples, 0.04%) read_events (19 samples, 0.78%) [mysqld] (10 samples, 0.41%) my_net_read (4 samples, 0.16%) [mysqld] (5 samples, 0.20%) [mysqld] (5 samples, 0.20%) system_call_fastpath (4 samples, 0.16%) __perf_event_task_sched_in (4 samples, 0.16%) __schedule (4 samples, 0.16%) do_fsync (43 samples, 1.76%) ngs::Server::run_task (5 samples, 0.20%) __perf_event_task_sched_in (20 samples, 0.82%) scsi_prep_fn (1 samples, 0.04%) schedule (20 samples, 0.82%) wake_up_worker (1 samples, 0.04%) pthread_cond_timedwait@@GLIBC_2.3.2 (25 samples, 1.02%) futex_wait_queue_me (4 samples, 0.16%) [mysqld] (110 samples, 4.49%) [mysq.. __perf_event_task_sched_in (4 samples, 0.16%) finish_task_switch (4 samples, 0.16%) create_index (34 samples, 1.39%) [unknown] (5 samples, 0.20%) dequeue_task_fair (2 samples, 0.08%) schedule (13 samples, 0.53%) system_call_fastpath (1 samples, 0.04%) system_call_fastpath (4 samples, 0.16%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (110 samples, 4.49%) std::.. Fil_shard::flush_file_spaces (69 samples, 2.82%) Fi.. flush_work (24 samples, 0.98%) __schedule (29 samples, 1.18%) syscall (1 samples, 0.04%) perf_pmu_enable (4 samples, 0.16%) x86_pmu_enable (8 samples, 0.33%) futex_wait (5 samples, 0.20%) [unknown] (10 samples, 0.41%) btr_drop_ahi_for_table (134 samples, 5.47%) btr_dro.. aio_read_events (1 samples, 0.04%) sys_fsync (50 samples, 2.04%) s.. [unknown] (60 samples, 2.45%) [u.. x86_pmu_enable (4 samples, 0.16%) mysql_rm_table (136 samples, 5.55%) mysql_r.. fseg_create_general (30 samples, 1.22%) Fil_system::flush_file_spaces (41 samples, 1.67%) __audit_syscall_exit (2 samples, 0.08%) x86_pmu_enable (4 samples, 0.16%) __perf_event_task_sched_in (20 samples, 0.82%) Double_write::check_block (1 samples, 0.04%) [libpthread-2.17.so] (5 samples, 0.20%) update_wall_time (1 samples, 0.04%) x86_pmu_enable (8 samples, 0.33%) megasas_build_and_issue_cmd_fusion (1 samples, 0.04%) x86_pmu_enable (8 samples, 0.33%) futex_wait_queue_me (4 samples, 0.16%) btr_search_drop_page_hash_when_freed (54 samples, 2.20%) b.. system_call_fastpath (4 samples, 0.16%) __perf_event_task_sched_in (12 samples, 0.49%) sys_futex (4 samples, 0.16%) __check_object_size (1 samples, 0.04%) system_call_fastpath (25 samples, 1.02%) file_update_time (1 samples, 0.04%) ppoll (4 samples, 0.16%) read_events (20 samples, 0.82%) futex_wait_queue_me (4 samples, 0.16%) system_call_fastpath (45 samples, 1.84%) s.. os_aio_handler (49 samples, 2.00%) o.. do_futex (4 samples, 0.16%) flush_tlb_page (1 samples, 0.04%) Double_write::write_dblwr_pages (1 samples, 0.04%) [libpthread-2.17.so] (41 samples, 1.67%) __schedule (5 samples, 0.20%) xlog_bdstrat (4 samples, 0.16%) system_call_fastpath (50 samples, 2.04%) s.. x86_pmu_enable (4 samples, 0.16%) system_call_fastpath (4 samples, 0.16%) change_prot_numa (1 samples, 0.04%) __schedule (18 samples, 0.73%) perf_pmu_enable (16 samples, 0.65%) blk_account_io_start (1 samples, 0.04%) deactivate_task (2 samples, 0.08%) disk_map_sector_rcu (1 samples, 0.04%) log_flusher (63 samples, 2.57%) lo.. row_purge_step (6 samples, 0.24%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (37 samples, 1.51%) xfs_file_buffered_aio_write (1 samples, 0.04%) pthread_cond_wait@@GLIBC_2.3.2 (4 samples, 0.16%) perf_pmu_enable (20 samples, 0.82%) release_pages (1 samples, 0.04%) __do_page_fault (2 samples, 0.08%) check_stack_object (2 samples, 0.08%) pthread_cond_timedwait@@GLIBC_2.3.2 (4 samples, 0.16%) Log_files_dict::find (1 samples, 0.04%) pthread_cond_wait@@GLIBC_2.3.2 (4 samples, 0.16%) [mysqld] (5 samples, 0.20%) [unknown] (1 samples, 0.04%) perf_pmu_enable (20 samples, 0.82%) do_futex (1 samples, 0.04%) filemap_write_and_wait_range (1 samples, 0.04%) schedule (5 samples, 0.20%) sg_alloc_table_chained (1 samples, 0.04%) apic_timer_interrupt (1 samples, 0.04%) enqueue_hrtimer (1 samples, 0.04%) mntput (1 samples, 0.04%) dispatch_command (1,009 samples, 41.20%) dispatch_command ngs::Scheduler_dynamic::wait_if_idle_then_delete_worker (4 samples, 0.16%) alloc_request_simple (1 samples, 0.04%) btr_cur_optimistic_insert (1 samples, 0.04%) __perf_event_task_sched_in (12 samples, 0.49%) [libc-2.17.so] (5 samples, 0.20%) futex_wait_queue_me (4 samples, 0.16%) generic_exec_single (1 samples, 0.04%) __list_del_entry (1 samples, 0.04%) retint_signal (7 samples, 0.29%) schedule (4 samples, 0.16%) schedule (8 samples, 0.33%) row_ins_clust_index_entry_low (1 samples, 0.04%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (26 samples, 1.06%) blk_queue_start_tag (1 samples, 0.04%) ibuf_merge_or_delete_for_page (1 samples, 0.04%) ret_from_sys_call (1 samples, 0.04%) do_sync_write (1 samples, 0.04%) sys_futex (8 samples, 0.33%) sys_futex (12 samples, 0.49%) Buf_fetch_normal::get (1 samples, 0.04%) smp_apic_timer_interrupt (1 samples, 0.04%) os_file_write_func (1 samples, 0.04%) [mysqld] (1 samples, 0.04%) os_file_write_func (26 samples, 1.06%) [mysqld] (362 samples, 14.78%) [mysqld] ib_io_rd-4 (14 samples, 0.57%) [mysqld] (5 samples, 0.20%) deadline_merge (1 samples, 0.04%) irq_exit (1 samples, 0.04%) schedule (4 samples, 0.16%) smp_call_function_many (1 samples, 0.04%) system_call_fastpath (13 samples, 0.53%) [mysqld] (24 samples, 0.98%) perf_pmu_enable (8 samples, 0.33%) try_to_unmap_one (1 samples, 0.04%) x86_pmu_enable (4 samples, 0.16%) cpuacct_charge (1 samples, 0.04%) system_call_fastpath (4 samples, 0.16%) perf_pmu_enable (33 samples, 1.35%) __sched_yield (48 samples, 1.96%) _.. sysret_check (34 samples, 1.39%) LinuxAIOHandler::poll (19 samples, 0.78%) system_call (1 samples, 0.04%) srv_master_thread (5 samples, 0.20%) do_futex (49 samples, 2.00%) d.. hrtimer_start_range_ns (1 samples, 0.04%) xpl_accept-2 (5 samples, 0.20%) schedule (20 samples, 0.82%) finish_task_switch (24 samples, 0.98%) schedule (4 samples, 0.16%) do_page_fault (90 samples, 3.67%) do_p.. x86_pmu_enable (8 samples, 0.33%) tick_sched_do_timer (1 samples, 0.04%) select_task_rq_fair (1 samples, 0.04%) finish_task_switch (4 samples, 0.16%) perf_pmu_enable (4 samples, 0.16%) scsi_finish_command (1 samples, 0.04%) ib_log_files_g (65 samples, 2.65%) ib.. Fil_shard::space_flush (1 samples, 0.04%) schedule (24 samples, 0.98%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (15 samples, 0.61%) deactivate_task (1 samples, 0.04%) __perf_event_task_sched_in (4 samples, 0.16%) [mysqld] (4 samples, 0.16%) sys_fsync (62 samples, 2.53%) sy.. fsp_get_space_header (5 samples, 0.20%) do_softirq (1 samples, 0.04%) Double_write::write_pages (1 samples, 0.04%) schedule (4 samples, 0.16%) log_writer (36 samples, 1.47%) futex_wait_queue_me (9 samples, 0.37%) do_numa_page (67 samples, 2.74%) do.. get_request (2 samples, 0.08%) __perf_event_task_sched_in (20 samples, 0.82%) xfs_log_force_lsn (4 samples, 0.16%) __schedule (4 samples, 0.16%) __perf_event_task_sched_in (4 samples, 0.16%) sys_io_getevents (19 samples, 0.78%) [mysqld] (5 samples, 0.20%) finish_task_switch (8 samples, 0.33%) __lru_cache_add (1 samples, 0.04%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (15 samples, 0.61%) xfs_file_fsync (24 samples, 0.98%) schedule (4 samples, 0.16%) futex_wait_queue_me (29 samples, 1.18%) [mysqld] (1 samples, 0.04%) insert_work (1 samples, 0.04%) __audit_syscall_exit (1 samples, 0.04%) futex_wait_queue_me (4 samples, 0.16%) sys_futex (50 samples, 2.04%) s.. __schedule (4 samples, 0.16%) pick_next_task_fair (1 samples, 0.04%) putback_lru_page (4 samples, 0.16%) change_protection (1 samples, 0.04%) ret_from_sys_call (1 samples, 0.04%) xfs_blkdev_issue_flush (1 samples, 0.04%) [mysqld] (14 samples, 0.57%) dequeue_task_fair (1 samples, 0.04%) mempool_alloc (2 samples, 0.08%) system_call_fastpath (2 samples, 0.08%) system_call_fastpath (4 samples, 0.16%) pthread_self@plt (1 samples, 0.04%) srv_worker_thread (10 samples, 0.41%) call_softirq (1 samples, 0.04%) sysret_audit (1 samples, 0.04%) ib_buf_lru-2 (20 samples, 0.82%) futex_wait (4 samples, 0.16%) sys_futex (4 samples, 0.16%) __schedule (15 samples, 0.61%) futex_wait (8 samples, 0.33%) finish_task_switch (4 samples, 0.16%) fil_aio_wait (91 samples, 3.72%) fil_.. [libaio.so.1.0.1] (20 samples, 0.82%) finish_task_switch (4 samples, 0.16%) page_fault (2 samples, 0.08%) __perf_event_task_sched_in (12 samples, 0.49%) futex_wait (1 samples, 0.04%) do_futex (4 samples, 0.16%) log_sync_flush_lsn (1 samples, 0.04%) __perf_event_task_sched_in (4 samples, 0.16%) sys_getrusage (1 samples, 0.04%) __perf_event_task_sched_in (40 samples, 1.63%) pthread_cond_wait@@GLIBC_2.3.2 (8 samples, 0.33%) blk_queue_enter (1 samples, 0.04%) xfs_trans_commit (1 samples, 0.04%) system_call_fastpath (8 samples, 0.33%) finish_task_switch (28 samples, 1.14%) __schedule (35 samples, 1.43%) system_call_after_swapgs (1 samples, 0.04%) current_kernel_time (1 samples, 0.04%) __virt_addr_valid (4 samples, 0.16%) sys_futex (4 samples, 0.16%) deactivate_task (1 samples, 0.04%) xfs_log_force_lsn (45 samples, 1.84%) x.. unroll_tree_refs (1 samples, 0.04%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (60 samples, 2.45%) st.. dict_stats_thread (5 samples, 0.20%) __do_softirq (1 samples, 0.04%) finish_task_switch (4 samples, 0.16%) start_thread (4 samples, 0.16%) system_call_fastpath (12 samples, 0.49%) blk_queue_bio (4 samples, 0.16%) intel_pstate_update_util (1 samples, 0.04%) __perf_event_task_sched_in (4 samples, 0.16%) [mysqld] (5 samples, 0.20%) futex_wait_queue_me (4 samples, 0.16%) __schedule (4 samples, 0.16%) __perf_event_task_sched_in (4 samples, 0.16%) call_softirq (1 samples, 0.04%) ib_buf_lru-5 (5 samples, 0.20%) futex_wait_queue_me (48 samples, 1.96%) f.. cpuacct_charge (1 samples, 0.04%) sys_futex (16 samples, 0.65%) perf_pmu_enable (4 samples, 0.16%) sys_clock_gettime (1 samples, 0.04%) finish_task_switch (33 samples, 1.35%) perf_pmu_enable (20 samples, 0.82%) log_files_next_checkpoint (46 samples, 1.88%) l.. dequeue_entity (1 samples, 0.04%) __lll_unlock_wake (1 samples, 0.04%) pthread_cond_timedwait@@GLIBC_2.3.2 (52 samples, 2.12%) p.. sys_ppoll (4 samples, 0.16%) futex_wait_queue_me (15 samples, 0.61%) do_nanosleep (18 samples, 0.73%) audit_filter_syscall (1 samples, 0.04%) vfs_write (25 samples, 1.02%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (10 samples, 0.41%) elv_merge (1 samples, 0.04%) __do_page_fault (87 samples, 3.55%) __d.. __perf_event_task_sched_in (4 samples, 0.16%) read_events (5 samples, 0.20%) elv_rqhash_find (1 samples, 0.04%) free_hot_cold_page_list (1 samples, 0.04%) ib_log_fl_notif (51 samples, 2.08%) i.. __wake_up_common_lock (1 samples, 0.04%) que_run_threads (1 samples, 0.04%) [mysqld] (60 samples, 2.45%) [m.. wait_for_completion (42 samples, 1.71%) xfs_log_force_lsn (24 samples, 0.98%) pthread_mutex_lock (1 samples, 0.04%) LinuxAIOHandler::poll (10 samples, 0.41%) xlog_cil_force_lsn (20 samples, 0.82%) auditsys (4 samples, 0.16%) do_futex (4 samples, 0.16%) Double_write::flush_to_disk (40 samples, 1.63%) page_fault (1 samples, 0.04%) schedule (4 samples, 0.16%) copy_user_enhanced_fast_string (1 samples, 0.04%) futex_wait (23 samples, 0.94%) scsi_softirq_done (1 samples, 0.04%) schedule (4 samples, 0.16%) futex_wait (49 samples, 2.00%) f.. finish_task_switch (4 samples, 0.16%) blk_finish_plug (2 samples, 0.08%) should_numa_migrate_memory (1 samples, 0.04%) os_event::wait_time_low (4 samples, 0.16%) schedule (13 samples, 0.53%) __schedule (24 samples, 0.98%) elv_merge (1 samples, 0.04%) Log_file_handle::write (1 samples, 0.04%) futex_wait (4 samples, 0.16%) dio_complete (1 samples, 0.04%) btr_search_drop_page_hash_when_freed (2 samples, 0.08%) __schedule (4 samples, 0.16%) enqueue_hrtimer (1 samples, 0.04%) change_pte_range (1 samples, 0.04%) change_prot_numa (1 samples, 0.04%) bio_endio (1 samples, 0.04%) Protocol_classic::get_command (4 samples, 0.16%) alloc_misplaced_dst_page (2 samples, 0.08%) system_call_fastpath (89 samples, 3.63%) syst.. native_flush_tlb_single (1 samples, 0.04%) kmem_cache_alloc_node (1 samples, 0.04%) row_purge_step (1 samples, 0.04%) tick_sched_timer (1 samples, 0.04%) [mysqld] (6 samples, 0.24%) get_futex_key_refs.isra.12 (1 samples, 0.04%) [unknown] (10 samples, 0.41%) srv_master_thread (1 samples, 0.04%) buf_flush_lists (45 samples, 1.84%) b.. xfs_file_aio_write (25 samples, 1.02%) submit_bio (1 samples, 0.04%) xfs_log_force_lsn (49 samples, 2.00%) x.. megasas_queue_command (1 samples, 0.04%) Detached_thread::operator (5 samples, 0.20%) smp_call_function_many (2 samples, 0.08%) vm_normal_page (1 samples, 0.04%) wait_for_completion (20 samples, 0.82%) pthread_cond_wait@@GLIBC_2.3.2 (5 samples, 0.20%) update_process_times (1 samples, 0.04%) posix_ktime_get_ts (20 samples, 0.82%) ib_fts_opt (5 samples, 0.20%) read_events (14 samples, 0.57%) [mysqld] (10 samples, 0.41%) do_fsync (41 samples, 1.67%) fget_light (1 samples, 0.04%) skb_release_all (1 samples, 0.04%) update_rq_clock.part.75 (1 samples, 0.04%) [mysqld] (1,013 samples, 41.36%) [mysqld] __schedule (16 samples, 0.65%) free_hot_cold_page_list (3 samples, 0.12%) pthread_cond_broadcast@@GLIBC_2.3.2 (1 samples, 0.04%) sched_clock_cpu (1 samples, 0.04%) ngs::Scheduler_dynamic::worker (5 samples, 0.20%) system_call_fastpath (18 samples, 0.73%) LinuxAIOHandler::poll (19 samples, 0.78%) que_eval_sql (1 samples, 0.04%) sys_futex (1 samples, 0.04%) __hrtimer_run_queues (1 samples, 0.04%) default_wake_function (1 samples, 0.04%) __perf_event_task_sched_in (4 samples, 0.16%) task_work_run (1 samples, 0.04%) do_futex (4 samples, 0.16%) vfs_write (1 samples, 0.04%) rmap_walk (5 samples, 0.20%) finish_task_switch (16 samples, 0.65%) sysret_audit (20 samples, 0.82%) Fil_system::flush_file_spaces (69 samples, 2.82%) Fi.. [libpthread-2.17.so] (4 samples, 0.16%) sys_io_getevents (35 samples, 1.43%) btr_search_drop_page_hash_index (51 samples, 2.08%) b.. trx_commit_for_mysql (4 samples, 0.16%) log_sync_flush_lsn (1 samples, 0.04%) [mysqld] (119 samples, 4.86%) [mysqld] sys_nanosleep (8 samples, 0.33%) system_call_fastpath (5 samples, 0.20%) hrtimer_start_range_ns (1 samples, 0.04%) schedule (4 samples, 0.16%) perf_pmu_enable (4 samples, 0.16%) Detached_thread::operator (10 samples, 0.41%) smp_apic_timer_interrupt (1 samples, 0.04%) x86_pmu_enable (4 samples, 0.16%) ib_buf_lru-3 (15 samples, 0.61%) Detached_thread::operator (362 samples, 14.78%) Detached_thread::opera.. __list_del_entry (1 samples, 0.04%) perf_pmu_enable (4 samples, 0.16%) os_event_reset (1 samples, 0.04%) mutex_enter_inline<PolicyMutex<TTASEventMutex<GenericPolicy> > > (1 samples, 0.04%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (5 samples, 0.20%) scsi_dispatch_cmd (1 samples, 0.04%) std::thread::_State_impl<std::thread::_Invoker<std::tuple<Detached_thread, void (5 samples, 0.20%) system_call_after_swapgs (2 samples, 0.08%) finish_task_switch (8 samples, 0.33%)