From: Eric St-Laurent <ericstl34@sympatico.ca>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
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 16:29:07 -0400 [thread overview]
Message-ID: <1185049747.27915.8.camel@perkele> (raw)
In-Reply-To: <20070721210051.975382000@chello.nl>
On Sat, 2007-21-07 at 23:00 +0200, Peter Zijlstra wrote:
> plain text document attachment (readahead-useonce.patch)
> Use the read-ahead code to provide hints to page reclaim.
>
> This patch has the potential to solve the streaming-IO trashes my
> desktop problem.
>
> It tries to aggressively reclaim pages that were loaded in a strong
> sequential pattern and have been consumed. Thereby limiting the damage
> to the current resident set.
>
> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
With the fadvise change, it looks like the right solution to me.
The patches are for which kernel? They doesn't apply cleanly to
2.6.22.1.
It would be useful to have a temporary /proc tunable to enable/disable
the heuristic to help test the effects.
- Eric
next prev parent reply other threads:[~2007-07-21 21:29 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 [this message]
2007-07-21 20:37 ` Peter Zijlstra
2007-07-21 20:59 ` Eric St-Laurent
2007-07-21 21:06 ` Peter Zijlstra
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
2007-07-22 8:45 ` Fengguang Wu
2007-07-22 8:45 ` Fengguang Wu
2007-07-22 8:59 ` Peter Zijlstra
2007-07-22 9:53 ` Fengguang Wu
2007-07-22 9:53 ` Fengguang Wu
2007-07-22 2:39 ` [PATCH 0/3] readahead drop behind and size adjustment Fengguang Wu
2007-07-22 2:39 ` Fengguang Wu
2007-07-22 2:44 ` Dave Jones
2007-07-22 8:10 ` Fengguang Wu
2007-07-22 8:10 ` Fengguang Wu
2007-07-22 8:24 ` Peter Zijlstra
2007-07-22 8:29 ` Fengguang Wu
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
2007-07-23 14:24 ` Fengguang Wu
2007-07-23 14:24 ` Fengguang Wu
2007-07-23 19:40 ` Andrew Morton
2007-07-24 0:47 ` Fengguang Wu
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1185049747.27915.8.camel@perkele \
--to=ericstl34@sympatico.ca \
--cc=a.p.zijlstra@chello.nl \
--cc=akpm@linux-foundation.org \
--cc=csnook@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=lnxninja@us.ibm.com \
--cc=riel@redhat.com \
--cc=rusty@rustcorp.com.au \
--cc=wfg@mail.ustc.edu.cn \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.