Re: Where is the performance bottleneck?

From: Nick Piggin (nickpiggin_at_yahoo.com.au)
Date: 08/31/05

  • Next message: Srivatsa Vaddagiri: "[PATCH 1/3] Updated dynamic tick patches - Fix lost tick calculation in timer_pm.c" 
    Date:	Thu, 01 Sep 2005 03:25:36 +1000
To: Holger Kiehl <Holger.Kiehl@dwd.de>

    Holger Kiehl wrote:

    > meminfo.dump:
    >
    > MemTotal: 8124172 kB
    > MemFree: 23564 kB
    > Buffers: 7825944 kB
    > Cached: 19216 kB
    > SwapCached: 0 kB
    > Active: 25708 kB
    > Inactive: 7835548 kB
    > HighTotal: 0 kB
    > HighFree: 0 kB
    > LowTotal: 8124172 kB
    > LowFree: 23564 kB
    > SwapTotal: 15631160 kB
    > SwapFree: 15631160 kB
    > Dirty: 3145604 kB

    Hmm OK, dirty memory is pinned pretty much exactly on dirty_ratio
    so maybe I've just led you on a goose chase.

    You could
         echo 5 > /proc/sys/vm/dirty_background_ratio
         echo 10 > /proc/sys/vm/dirty_ratio

    To further reduce dirty memory in the system, however this is
    a long shot, so please continue your interaction with the
    other people in the thread first.

    Thanks,
    Nick 

    -- 
SUSE Labs, Novell Inc.
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