From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Eric St-Laurent <ericstl34@sympatico.ca>
Cc: linux-kernel <linux-kernel@vger.kernel.org>,
Fengguang Wu <wfg@mail.ustc.edu.cn>, riel <riel@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Rusty Russell <rusty@rustcorp.com.au>,
Tim Pepper <lnxninja@us.ibm.com>, Chris Snook <csnook@redhat.com>
Subject: Re: [PATCH 1/3] readahead: drop behind
Date: Sat, 21 Jul 2007 23:06:39 +0200 [thread overview]
Message-ID: <1185051999.5652.25.camel@lappy> (raw)
In-Reply-To: <1185051551.28982.4.camel@perkele>
On Sat, 2007-07-21 at 16:59 -0400, Eric St-Laurent wrote:
> > They are against git of a few hours ago and the latest readahead patches
> > from Wu (which don't apply cleanly either, but the rejects are trivial).
> >
> > > It would be useful to have a temporary /proc tunable to enable/disable
> > > the heuristic to help test the effects.
> >
> > Right, I had such a patch somewhere,.. won't apply cleanly but should be
> > obvious..
>
> Thanks, I will merge theses and report back with some results.
>
> After copying large files, I find my system sluggish. I hope your
> changes will help.
Yeah, copying will still hurt. This will only help reading large files,
not writing :-/
For that I still need an inspiring idea.
next prev parent reply other threads:[~2007-07-21 21:07 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-21 21:00 [PATCH 0/3] readahead drop behind and size adjustment Peter Zijlstra
2007-07-21 21:00 ` [PATCH 1/3] readahead: drop behind Peter Zijlstra
2007-07-21 20:29 ` Eric St-Laurent
2007-07-21 20:37 ` Peter Zijlstra
2007-07-21 20:59 ` Eric St-Laurent
2007-07-21 21:06 ` Peter Zijlstra [this message]
2007-07-25 3:55 ` Eric St-Laurent
2007-07-21 21:00 ` [PATCH 2/3] readahead: fadvise drop behind controls Peter Zijlstra
2007-07-21 21:00 ` [PATCH 3/3] readahead: scale max readahead size depending on memory size Peter Zijlstra
2007-07-22 8:24 ` Jens Axboe
2007-07-22 8:36 ` Peter Zijlstra
2007-07-22 8:50 ` Jens Axboe
2007-07-22 9:17 ` Peter Zijlstra
2007-07-22 16:44 ` Jens Axboe
2007-07-23 10:04 ` Jörn Engel
2007-07-23 10:11 ` Jens Axboe
2007-07-23 22:44 ` Rusty Russell
2007-07-22 23:52 ` Rik van Riel
2007-07-23 5:22 ` Jens Axboe
[not found] ` <20070722084526.GB6317@mail.ustc.edu.cn>
2007-07-22 8:45 ` Fengguang Wu
2007-07-22 8:59 ` Peter Zijlstra
[not found] ` <20070722095313.GA8136@mail.ustc.edu.cn>
2007-07-22 9:53 ` Fengguang Wu
[not found] ` <20070722023923.GA6438@mail.ustc.edu.cn>
2007-07-22 2:39 ` [PATCH 0/3] readahead drop behind and size adjustment Fengguang Wu
2007-07-22 2:44 ` Dave Jones
[not found] ` <20070722081010.GA6317@mail.ustc.edu.cn>
2007-07-22 8:10 ` Fengguang Wu
2007-07-22 8:24 ` Peter Zijlstra
[not found] ` <20070722082923.GA7790@mail.ustc.edu.cn>
2007-07-22 8:29 ` Fengguang Wu
2007-07-22 8:33 ` Rusty Russell
2007-07-22 8:45 ` Peter Zijlstra
2007-07-23 9:00 ` Nick Piggin
[not found] ` <20070723142457.GA10130@mail.ustc.edu.cn>
2007-07-23 14:24 ` Fengguang Wu
2007-07-23 19:40 ` Andrew Morton
[not found] ` <20070724004728.GA8026@mail.ustc.edu.cn>
2007-07-24 0:47 ` Fengguang Wu
2007-07-24 1:17 ` Andrew Morton
2007-07-24 8:50 ` Andreas Dilger
2007-07-24 4:30 ` Nick Piggin
2007-07-25 4:35 ` Eric St-Laurent
2007-07-25 5:19 ` Nick Piggin
2007-07-25 6:18 ` Eric St-Laurent
2007-07-25 7:09 ` Nick Piggin
2007-07-25 7:48 ` Eric St-Laurent
2007-07-25 15:36 ` Rik van Riel
2007-07-25 15:33 ` Rik van Riel
2007-07-29 7:44 ` Eric St-Laurent
2007-07-25 15:28 ` Rik van Riel
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