MySQLÐÔÄܼà¿ØС֪ʶ (ת)

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2009-10-24 00:23
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ps -ef | awk '{print $1}' | grep "mysql" | grep -v "grep" | wc-1
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# uptime
[root@ ~]# uptime
13:05:52 up 53 days, 52 min, 1 user, load average: 0.00, 0.00, 0.00
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# top
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# vmstat
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# vmstat »ò # iostat
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# free
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(1)QPS(ÿÃëQueryÁ¿)
QPS = Questions(or Queries) / seconds
mysql > show /*50000 global */ status like 'Question';
(2)TPS(ÿÃëÊÂÎñÁ¿)
TPS = (Com_commit + Com_rollback) / seconds
mysql > show status like 'Com_commit';
mysql > show status like 'Com_rollback';
(3)key Buffer ÃüÖÐÂÊ
key_buffer_read_hits = (1-key_reads / key_read_requests) * 100%
key_buffer_write_hits = (1-key_writes / key_write_requests) * 100%
mysql> show status like 'Key%';
(4)InnoDB BufferÃüÖÐÂÊ
innodb_buffer_read_hits = (1 - innodb_buffer_pool_reads / innodb_buffer_pool_read_requests) * 100%
mysql> show status like 'innodb_buffer_pool_read%';
(5)Query CacheÃüÖÐÂÊ
Query_cache_hits = (Qcahce_hits / (Qcache_hits + Qcache_inserts )) * 100%;
mysql> show status like 'Qcache%';
(6)Table Cache״̬Á¿
mysql> show status like 'open%';
(7)Thread Cache ÃüÖÐÂÊ
Thread_cache_hits = (1 - Threads_created / connections ) * 100%
mysql> show status like 'Thread%';
mysql> show status like 'Connections';
(8)Ëø¶¨×´Ì¬
mysql> show status like '%lock%';
(9)¸´ÖÆÑÓʱÁ¿
mysql > show slave status
(10) Tmp Table ×´¿ö(ÁÙʱ±í×´¿ö)
mysql > show status like 'Create_tmp%';
(11) Binlog Cache ʹÓÃ×´¿ö
mysql > show status like 'Binlog_cache%';
(12) Innodb_log_waits Á¿
mysql > show status like 'innodb_log_waits';
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