--sort_buffer_size=64M  --read_buffer_size=32M  --read_rnd_buffer_size=16M  --join_buffer_size=32M --thread_cache_size=8 --thread_concurrency=16 --innodb_support_xa=0  --innodb_thread_concurrency=16 --innodb_log_buffer_size=64M  --innodb_flush_log_at_trx_commit=2 --performance-schema=0