From: Islam Amer <pharon@gmail.com>
To: "Valdis.Kletnieks@vt.edu" <Valdis.Kletnieks@vt.edu>
Cc: Fionn Behrens <fionn@spamfilter.de>, reiserfs-list@namesys.com
Subject: Re: iosched (was Re: Full of surprises - A reiser4 story from userland)
Date: Wed, 28 Sep 2005 23:31:40 +0300 [thread overview]
Message-ID: <5d8b7b90509281331ffd953c@mail.gmail.com> (raw)
In-Reply-To: <200509281952.j8SJq9Uo007371@turing-police.cc.vt.edu>
> The performance boost for any of the provided iosched schemes can be
> positive, negative, imaginary, or complex(*), depending on the actual workload of
> the system, and what reference patterns it generates.
>
I assumed published benchmarks are conducted under strictly controlled
conditions.
> (*) I suspect that (benchmarks being benchmarks) the chance that the boost
> be totally real, with no imaginary component, is very slim. And everybody
> knows that most benchmark results are complex to interpret.. :)
Then this scheduler is doing a very good job at creating an illusion
of enhanced performance.
Thanks for the reply :)
next prev parent reply other threads:[~2005-09-28 20:31 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-28 13:40 Full of surprises - A reiser4 story from userland Fionn Behrens
2005-09-28 14:12 ` Domenico Andreoli
2005-09-28 14:51 ` Clemens Eisserer
2005-09-28 15:35 ` Fionn Behrens
2005-09-28 14:25 ` Vitaly Fertman
2005-09-28 14:51 ` Islam Amer
2005-09-28 15:56 ` Fionn Behrens
2005-09-28 18:13 ` Hans Reiser
2005-09-28 18:07 ` Hans Reiser
2005-09-28 15:28 ` Fionn Behrens
2005-09-28 15:57 ` David Masover
2005-09-28 18:32 ` Fionn Behrens
2005-09-28 19:13 ` Islam Amer
2005-09-28 19:52 ` iosched (was Re: Full of surprises - A reiser4 story from userland) Valdis.Kletnieks
2005-09-28 20:31 ` Islam Amer [this message]
2005-09-28 20:48 ` Hans Reiser
2005-09-28 20:32 ` Hans Reiser
2005-09-28 20:38 ` Islam Amer
2005-09-28 20:48 ` vs, can you port to 2.6.13 and put the port on our website as part of analyzing the latest patches added to the -mm series and their impact on reiser4 performance Hans Reiser
2005-09-29 15:05 ` Vladimir V. Saveliev
2005-09-29 0:55 ` iosched (was Re: Full of surprises - A reiser4 story from userland) David Masover
2005-09-29 1:22 ` michael chang
2005-09-29 9:34 ` Islam Amer
2005-09-29 18:47 ` David Masover
2005-09-29 19:01 ` Dan Oglesby
[not found] ` <5a59ce53050928143267c9d779@mail.gmail.com>
2005-09-28 21:33 ` studdugie
2005-09-28 22:20 ` Jonathan Briggs
2005-09-28 16:40 ` Full of surprises - A reiser4 story from userland Vitaly Fertman
2005-09-28 17:57 ` Fionn Behrens
2005-09-28 20:05 ` Vitaly Fertman
2005-09-28 18:11 ` Hans Reiser
2005-09-28 15:39 ` Ingo Bormuth
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