MYSQL Query Cache results

Discussion in 'MySQL' started by fordP, Dec 18, 2007.

  1. #1
    Guys, My server's CPU is getting hammered and I was wondering if someone might provide some insight into my query caching

    The cache size is currently 32mb

    Qcache_free_blocks         42
    -----------------------------------
    Qcache_free_memory         21952888
    -----------------------------------
    Qcache_hits                66444045
    -----------------------------------
    Qcache_inserts             23278553
    -----------------------------------
    Qcache_lowmem_prunes       240535
    -----------------------------------
    Qcache_not_cached          496730
    -----------------------------------
    Qcache_queries_in_cache    10365
    -----------------------------------
    Qcache_total_block         20907
    Code (markup):
    My server has 1 gig (Plesk shows 2.6 gigs, so I may be mistaken), and I'm wondering if it is safe to increase the query cache size, and if it is advisable to do so.

    Also, if someone could point me to some easy to understand MYSQL optimization guides, I would be grateful :eek:
     
    fordP, Dec 18, 2007 IP
  2. Petey

    Petey Peon

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    Hi fordP

    The data for your query cache doesn't look too bad to me. Maybe the reason for the CPU thrash is elsewhere.

    Download the MySQL Performance Tuning Primer Script from http://www.day32.com/MySQL/ and run it against your server. It may highlight other resource issues that would cause a CPU thrash.

    Also, is this server dedicated to MySQL or is it shared, and is it a real server or virtual?

    Petey
     
    Petey, Dec 19, 2007 IP