GET 24/7 LIVE HELP NOW

Announcement

Announcement Module
Collapse
No announcement yet.

High system column (vmstat) on the web server

Page Title Module
Move Remove Collapse
X
Conversation Detail Module
Collapse
  • Filter
  • Time
  • Show
Clear All
new posts

  • High system column (vmstat) on the web server

    Hi.

    Here is the output from vmstat 5 command on our web server:

    http://pastie.org/629672

    Looks like system column (sy) is too high and I'm trying to figure out what could causing that..

    Is there any tools I can look at to trace it?

    I would really appreciate any suggestions!

    Thanks

  • #2
    Hi there,

    This could mean a lots of things.

    At first I think you should try to run top -d1 to see which application of yours is eating up all your cpu.

    Regards,
    Istvan

    Comment


    • #3
      Looks like it mostly httpd (Apache)...Is it possible for Apache to cause high system usage? I was thinking it should affect user column..

      Comment


      • #4
        If apache is waiting for a system resource, its affect both. For example if there is too many apache2 threads running, yes it can affect the system column. You should lower the number of threads, lower timeout values possibly turn off keep alive or just scale your application between servers )

        Comment

        Working...
        X