From: Martin Knoblauch <martin.knoblauch@mscsoftware.com>
To: riel@conectiva.com.br
Cc: linux-kernel@vger.kernel.org
Subject: Re: Benchmarks for performance patches (-ck) for 2.4.19
Date: Mon, 2 Sep 2002 14:50:53 +0200 [thread overview]
Message-ID: <200209021450.53449.martin.knoblauch@mscsoftware.com> (raw)
>> I mean, besides making the kernel with as low latency as possible,
what
>> is bad about the responsiveness in the kernel? If there's any lag in
>> responsiveness that i see it's always something X related,
particularly
>> Xfree86.
>
>
>"low latency" != responsiveness
>
>
>Any latency which is below the point the user can notice
>is effectively zero, so whether the 10000 wakeups/minute
>that the user doesn't notice are 2ms or 5ms don't really
>matter.
absolugtely correct. My main grief wrt. responsiveness of desktop
systems is when the VM decides to grow the cache at the cost of pushing
parts of KDE into swap. As a result, "activating" windows that I
haven't touched for some time takes noticeable delays, which ruins the
interactiveness.
My best setup for this is to have lots of memory and disable swap (and
live with the consequences- eg. triggering the OOM killer).
Admittedly, things seem to be much better now than six month ago.
Martin
--
Martin Knoblauch
Senior System Architect
MSC.software GmbH
Am Moosfeld 13
D-81829 Muenchen, Germany
e-mail: martin.knoblauch@mscsoftware.com
http://www.mscsoftware.com
Phone/Fax: +49-89-431987-189 / -7189
Mobile: +49-174-3069245
next reply other threads:[~2002-09-02 12:47 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-02 12:50 Martin Knoblauch [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-09-04 5:15 Benchmarks for performance patches (-ck) for 2.4.19 Wade
2002-09-02 9:12 Con Kolivas
2002-09-04 3:39 ` Paul
2002-09-02 3:24 Dieter Nützel
2002-09-02 3:41 ` Rik van Riel
2002-09-02 3:42 ` Con Kolivas
2002-09-02 4:21 ` Randy.Dunlap
2002-09-02 1:10 Con Kolivas
2002-09-02 2:03 ` Ed Sweetman
2002-09-02 2:32 ` Rik van Riel
2002-09-02 4:00 ` Ed Sweetman
2002-09-02 7:39 ` Ingo Oeser
2002-09-02 13:20 ` Rik van Riel
2002-09-03 3:16 ` jw schultz
2002-09-02 5:22 ` Paul
2002-09-02 5:40 ` J Sloan
2002-09-02 5:57 ` Andrew Morton
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