Presentation (PDF) - MySQL

Profiling General Instance Activity§ Analyzing Global Waits§ Some mutex events that can affect global throughput (if high in list):– wait/synch/mutex/innodb/buf_pool_mutex– Increase innodb_buffer_pool_instances– wait/synch/mutex/sql/Query_cache::structure_guard_mutex– Disable the Query Cache– wait/synch/mutex/myisam/MYISAM_SHARE::intern_lock– Use InnoDB ;)33Copyright © 2012, Oracle and/or its affiliates. All rights reserved.