Re: Interactive Usage of 2.6.0.test1 worse than 2.4.21

From: Andrew Morton (akpm_at_osdl.org)
Date: 08/05/03

  • Next message: Jani Monoses: "Re: ide-cs stack_dump" 
    Date:	Mon, 4 Aug 2003 23:26:54 -0700
To: Martin Konold <martin.konold@erfrakon.de>

    Martin Konold <martin.konold@erfrakon.de> wrote:
    >
    > Hi,
    >
    > when using 2.6.0.test1 on a high end laptop (P-IV 2.2 GHz, 1GB RAM) I notice
    > very significant slowdown in interactive usage compared to 2.4.21.
    >
    > The difference is most easily seen when switching folders in kmail. While
    > 2.4.21 is instantaneous 2.6.0.test1 shows the clock for about 2-3 seconds.
    >
    > I am using maildir folders on reiserfs.

    There is a bug in old kmail versions wherein they do silly things if the
    filesystem alleges that its optimum I/O size is much larger than 4k.

    2.6's reiserfs tell applications that its optimum IO size is 128k, and the
    bug bites.

    Try mounting your reiserfs filesystems with the "nolargeio" option.

    A `mount -o remount,nolargeio' will probably work too.

    Please test that, send a report, and if it fixes it, upgrade your kmail.

    Thanks.
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  • Next message: Jani Monoses: "Re: ide-cs stack_dump"

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