Finding what's causing I/O

From: Francisco Reyes (lists_at_natserv.com)
Date: 09/23/05

  • Next message: Eric Anderson: "Re: High load average mail server 5.3-RELEASE" 
    Date: Thu, 22 Sep 2005 21:52:23 -0400 (EDT)
To: FreeBSD Performance <freebsd-performance@freebsd.org>

    Looking at vmstat I see the "b" colun never hits zero and it's usually
    between 5 and 20.

    Is there a way to find out which program(s) are causing the I/O?

    In some of the machines it was near trivial to find the culprit, but have
    a handfull of machines that I am not sure what the cause of I/O is.

    The machines are mailservers so they likely will not hold any particular
    file open long.
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  • Next message: Eric Anderson: "Re: High load average mail server 5.3-RELEASE"

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