| Server IP : 172.67.216.182 / Your IP : 162.158.162.12 Web Server : Apache System : Linux krdc-ubuntu-s-2vcpu-4gb-amd-blr1-01.localdomain 5.15.0-142-generic #152-Ubuntu SMP Mon May 19 10:54:31 UTC 2025 x86_64 User : www ( 1000) PHP Version : 7.4.33 Disable Function : passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /www/server/mysql/src/mysql-test/suite/perfschema/r/ |
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update performance_schema.setup_instruments set enabled='YES' where name like "wait/synch/mutex/mysys/THR_LOCK_myisam"; drop table if exists test.t1; drop table if exists test.t2; drop table if exists test.t3; truncate table performance_schema.events_waits_history_long; show global variables like "thread_handling"; Variable_name Value thread_handling one-thread-per-connection "----------------- Connection 1" create table test.t1(a int) engine=MYISAM; "----------------- Connection 2" create table test.t2(a int) engine=MYISAM; "----------------- Connection 3" create table test.t3(a int) engine=MYISAM; "----------------- Connection default" execute stmt_dump_events using @tid; event_name short_source operation number_of_bytes wait/synch/mutex/mysys/THR_LOCK_myisam lock NULL execute stmt_dump_thread using @tid; name thread/sql/one_connection execute stmt_dump_events using @tid; event_name short_source operation number_of_bytes wait/synch/mutex/mysys/THR_LOCK_myisam lock NULL execute stmt_dump_thread using @tid; name thread/sql/one_connection execute stmt_dump_events using @tid; event_name short_source operation number_of_bytes wait/synch/mutex/mysys/THR_LOCK_myisam lock NULL execute stmt_dump_thread using @tid; name thread/sql/one_connection drop table test.t1; drop table test.t2; drop table test.t3; update performance_schema.setup_instruments set enabled='YES';