Support » Fixing WordPress » Excessive CPU Usage

  • Since upgrading from version 2.6 to 2.8.4 (and now 2.8.5) my web host has been complaining that my blog is using too much CPU. My blog is a small, non-commercial blog and I only get about 700 legitimate hits per day, i.e. legitimate as measured by Sitemeter.

    Here’s the most recent message I got from my web host:

    =======================================================
    10-25-2009
    domain: theglitteringeye.com
    CPU usage: 2.98
    MEM usage: 0.02
    MySQL usage: 0.1
    Top Process %CPU 89.0 /usr/bin/php /home/xxxxxx/public_html/index.php
    Top Process %CPU 76.0 /usr/bin/php /home/xxxxxx/public_html/index.php
    Top Process %CPU 68.0 [php]

    10-26-2009
    domain: theglitteringeye.com
    CPU usage: 2.03
    MEM usage: 0.05
    MySQL usage: 0.1
    Top Process %CPU 70.0 /usr/bin/php /home/xxxxxx/public_html/index.php
    Top Process %CPU 59.0 /usr/bin/php /home/xxxxxx/public_html/index.php
    Top Process %CPU 49.0 /usr/bin/php /home/xxxxxx/public_html/index.php

    The following tests have been performed: I visit your website and checked several posts, where the php processes that where running under your account where using a small amount of CPU usage (3-4%). However when changing the category, the CPU usage went to 30-45% on each change:

    PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
    32537 xxxxxx 23 0 29392 19m 4424 S 33.6 0.3 0:00.71 php

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    When I received that message I was only running two plug-ins: AKismet and WP-Super Cache. Since receiving it, despite my misgivings, I have deactivated both of them.

    Anybody have any ideas on how I can trouble-shoot this problem?

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Viewing 4 replies - 1 through 4 (of 4 total)
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