慢sql 命令整理
show status;
show PROFILE
show PROFILEs
show GLOBAL status like '';
show SESSION status like '';
show status like 'Connections';
show status like 'Uptime';
show status like 'Slow_queries';
show status like 'Innodb_rows_read';
show status like 'Innodb_rows_inserted';
show status like 'Innodb_rows_updated';
show status like 'Innodb_rows_deleted';
show status like 'Com_select';
show status like 'Com_insert';
show status like 'Com_update';
show status like 'Com_delete';
show variables like '%slow_query_log%';
set global slow_query_log = on;
show variables like '%long_query_time%';
set global long_query_time = 1;
show variables like '%long_query_time%';
set long_query_time = 1;
show variables like '%long_query_time%';
my.cnf
[mysqld]
slow_query_log=ON
slow_query_log_file=c:/temp/mysql-slow.log
long_query_time=3
log_output=FILE
show variables like 'min_examined_row_limit';
mysqladmin -uroot -p flush-logs slow;
show variables like 'profiling';
set profiling = ON
show profiles;
show profile;
show profile cpu,block io for query 196;