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Thread: Memory Usage is high??!!!

  1. #1
    Wilson_Lee is offline Active Member
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    Question Memory Usage is high??!!!

    Hi

    I have setup Zimbra 64 bits on my server which is Quad Core Processor 2.13Ghz and 4GB memory.

    After setup, I run "top" and i notice more than 3.5 GB memory is used.

    I so surprise that Zimbra takes a lot of memory.

    May I know what happen to my Zimbra server?
    Do I need to do any tuning for it?
    what is the standard memory usage for Zimbra Server ?

    (Note: After setup, I only create a mailbox for testing purpose. I'm not yet put this server into production yet.)

  2. #2
    Baylink is offline Elite Member
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    Top (and free) both always show almost all memory in use on Linux systems; check the 'Cached' number. If it's most of the memory in 'use', you're fine.

    Worry when it starts swapping.
    Jay R. Ashworth - ZCS 6.0.9CE/CentOS5 - St Pete FL US - Music - Blog - Photography - IANAL - IAAMA
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    sergioag is offline Active Member
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    Hi

    I preffer to run a cat /proc/meminfo. You have to worry when SwapFree is substantially less than SwapTotal. That's when you're really using all your memory.

    Best regards,

    Sergio Aguayo

  4. #4
    Baylink is offline Elite Member
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    Yup; that's where free(1) gets it's data, I'm pretty sure.
    Jay R. Ashworth - ZCS 6.0.9CE/CentOS5 - St Pete FL US - Music - Blog - Photography - IANAL - IAAMA
    Try to Ask Questions The Smart Way -- you'll get better answers.

    Put your product and version in your profile/signature - All opinions strictly my own, even though I have an employer these days.
    If you [SOLVE] something, please tell everyone how for the archives
    And, please... read what people write, and answer the questions they asked, not the ones they didn't.

  5. #5
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    dwmtractor is offline Moderator
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    But in any case, Baylink is right, Zimbra appears to suck up a lot of memory depending on which tool you are using, and for that matter it requires at least 2GB to function well at all. Nevertheless as Baylink said, until/unless you see a lot of swap usage, you have nothing to worry about.
    Cheers,

    Dan

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