Hello all. I would like to ask for advice with performance tuning with MySQL.
Following are some data for my server. CPU : Xeon(TM) 2.8GHz (2CPUs - 8core total) Memory : 8GB OS : RHEL 4.4 x86_64 MySQL : MySQL 5.0.50sp1-enterprise Attached file # my.cnf.txt : my.cnf information # mysqlext_20120522131034.log : variable and status information from mysqladmin I have 2 database working with high load. I wanted to speed up my select and update queries not by optimizing the query itself but tuning the my.cnf. I have referred to following site, http://dev.mysql.com/doc/refman/5.0/en/server-status-variables.html and read "Hiperformance Mysql vol.2" , and increased the following values, table_cache thread_cache_size tmp_table_size max_heap_table_size but made not much difference. According to the ps and sar result *1 PS result Date Time CPU% RSS VSZ 2012/5/22 21:00:39 109 294752 540028 *2 SAR Average CPU user 25% sys 5% io 3% I assume that MySQL can work more but currently not. I am considersing to off load 1 high load database to seperate process and make MySQL work in multiple process. It would be a great help if people in this forum can give us an adivice for the tuning. Best Regards, Yu Watanabe
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