Index: buf/buf0flu.cc
===================================================================
--- buf/buf0flu.cc	(revision 3873)
+++ buf/buf0flu.cc	(working copy)
@@ -59,6 +59,7 @@
 doing the shutdown */
 UNIV_INTERN ibool buf_page_cleaner_is_active = FALSE;
 
+UNIV_INTERN ullint srv_page_cleaner_sleep_max  = 1000000;
 /** LRU flush batch is further divided into this chunk size to
 reduce the wait time for the threads waiting for a clean block */
 #define PAGE_CLEANER_LRU_BATCH_CHUNK_SIZE	100
@@ -2336,10 +2337,15 @@
 		/* Get sleep interval in micro seconds. We use
 		ut_min() to avoid long sleep in case of
 		wrap around. */
-		os_thread_sleep(ut_min(1000000,
-				(next_loop_time - cur_time)
-				 * 1000));
-	}
+                long long min_time = (ut_min(srv_page_cleaner_sleep_max,
+                                               (next_loop_time - cur_time)*1000));
+
+                export_vars.innodb_pc_sleep_sum+=min_time;
+
+                export_vars.innodb_pc_sleep_num++;
+
+                os_thread_sleep(min_time);
+        }
 }
 
 /******************************************************************//**
Index: handler/ha_innodb.cc
===================================================================
--- handler/ha_innodb.cc	(revision 3873)
+++ handler/ha_innodb.cc	(working copy)
@@ -639,6 +639,10 @@
   {"purge_view_trx_id_age",
   (char*) &export_vars.innodb_purge_view_trx_id_age,      SHOW_LONG},
 #endif /* UNIV_DEBUG */
+  {"pc_sleep_num",
+  (char*) &export_vars.innodb_pc_sleep_num, SHOW_LONG},
+  {"pc_sleep_sum",
+  (char*) &export_vars.innodb_pc_sleep_sum, SHOW_LONGLONG},
   {NullS, NullS, SHOW_LONG}
 };
 
@@ -15738,6 +15742,11 @@
   NULL, NULL, 120, 1, 127, 0);
 #endif /* defined UNIV_DEBUG || defined UNIV_PERF_DEBUG */
 
+static MYSQL_SYSVAR_ULONGLONG (page_cleaner_sleep_max, srv_page_cleaner_sleep_max,
+   PLUGIN_VAR_OPCMDARG,
+   "set the max sleep time of page clearner sleep if sleep is needed,"
+   "default 1,000,000 millisecond", NULL, NULL, 1000000, 1, 2000000, 0);
+
 static MYSQL_SYSVAR_LONG(buffer_pool_instances, innobase_buffer_pool_instances,
   PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
   "Number of buffer pool instances, set to higher value on high-end machines to increase scalability",
@@ -16327,6 +16336,7 @@
   MYSQL_SYSVAR(limit_optimistic_insert_debug),
   MYSQL_SYSVAR(trx_purge_view_update_only_debug),
 #endif /* UNIV_DEBUG */
+  MYSQL_SYSVAR(page_cleaner_sleep_max),
   NULL
 };
 
Index: include/srv0srv.h
===================================================================
--- include/srv0srv.h	(revision 3873)
+++ include/srv0srv.h	(working copy)
@@ -347,6 +347,7 @@
 extern ibool	srv_use_doublewrite_buf;
 extern ulong	srv_doublewrite_batch_size;
 extern ulong	srv_checksum_algorithm;
+extern ullint   srv_page_cleaner_sleep_max;
 
 extern ulong	srv_max_buf_pool_modified_pct;
 extern ulong	srv_max_purge_lag;
@@ -845,6 +846,8 @@
 	ulint innodb_purge_view_trx_id_age;	/*!< rw_max_trx_id
 						- purged view's min trx_id */
 #endif /* UNIV_DEBUG */
+        ulint innodb_pc_sleep_num;
+        long long innodb_pc_sleep_sum;
 };
 
 /** Thread slot in the thread table.  */