From: Jens Axboe <axboe@suse.de>
To: Wu Fengguang <wfg@mail.ustc.edu.cn>,
linux-kernel@vger.kernel.org, Linus Torvalds <torvalds@osdl.org>,
Andrew Morton <akpm@osdl.org>,
Nick Piggin <nickpiggin@yahoo.com.au>,
Badari Pulavarty <pbadari@us.ibm.com>
Subject: Re: [RFC] kernel facilities for cache prefetching
Date: Tue, 2 May 2006 10:09:36 +0200 [thread overview]
Message-ID: <20060502080935.GS3814@suse.de> (raw)
In-Reply-To: <20060502075049.GA5000@mail.ustc.edu.cn>
On Tue, May 02 2006, Wu Fengguang wrote:
> I'd like to know whether the two proposed kernel components would be
> acceptable for the mainline kernel, and any recommends to improve them.
I tried something very similar to this years ago, except I made it
explicit instead of hiding it in the blk_run_backing_dev() which we
didn't have at that time. My initial results showed that you would get a
load of requests for different pages so would end up doing io randomly
instead again.
Your patch isn't exactly pretty, but that is fixable. I'm more
interested in how you'd control that sanely.
--
Jens Axboe
next prev parent reply other threads:[~2006-05-02 8:09 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20060502075049.GA5000@mail.ustc.edu.cn>
2006-05-02 7:50 ` [RFC] kernel facilities for cache prefetching Wu Fengguang
2006-05-02 12:46 ` Diego Calleja
[not found] ` <20060502144203.GA10594@mail.ustc.edu.cn>
2006-05-02 14:42 ` Wu Fengguang
2006-05-02 16:07 ` Diego Calleja
[not found] ` <20060503064503.GA4781@mail.ustc.edu.cn>
2006-05-03 6:45 ` Wu Fengguang
2006-05-03 18:14 ` Diego Calleja
2006-05-03 23:39 ` Zan Lynx
2006-05-04 1:37 ` Diego Calleja
2006-05-02 15:55 ` Linus Torvalds
2006-05-02 16:35 ` Andi Kleen
[not found] ` <20060503041106.GC5915@mail.ustc.edu.cn>
2006-05-03 4:11 ` Wu Fengguang
2006-05-03 17:28 ` Badari Pulavarty
[not found] ` <346733486.30800@ustc.edu.cn>
2006-05-04 15:03 ` Linus Torvalds
2006-05-04 16:57 ` Badari Pulavarty
[not found] ` <20060505144451.GA6134@mail.ustc.edu.cn>
2006-05-05 14:44 ` Wu Fengguang
[not found] ` <20060503071325.GC4781@mail.ustc.edu.cn>
2006-05-03 7:13 ` Wu Fengguang
2006-05-03 12:59 ` Nikita Danilov
2006-05-03 22:20 ` Rik van Riel
[not found] ` <20060506011125.GA9099@mail.ustc.edu.cn>
2006-05-06 1:11 ` Wu Fengguang
2006-05-04 0:28 ` Linda Walsh
2006-05-04 1:31 ` Linus Torvalds
2006-05-04 7:08 ` Ph. Marek
2006-05-04 7:33 ` Arjan van de Ven
[not found] ` <20060504121454.GB6008@mail.ustc.edu.cn>
2006-05-04 12:14 ` Wu Fengguang
2006-05-04 12:34 ` Arjan van de Ven
2006-05-03 21:45 ` Linda Walsh
[not found] ` <20060504121212.GA6008@mail.ustc.edu.cn>
2006-05-04 12:12 ` Wu Fengguang
2006-05-04 18:57 ` Linda Walsh
[not found] ` <20060505152007.GB6134@mail.ustc.edu.cn>
2006-05-05 15:20 ` Wu Fengguang
2006-05-04 9:02 ` Helge Hafting
2006-05-02 7:58 ` Arjan van de Ven
[not found] ` <20060502080619.GA5406@mail.ustc.edu.cn>
2006-05-02 8:06 ` Wu Fengguang
2006-05-02 8:30 ` Arjan van de Ven
[not found] ` <20060502085325.GA9190@mail.ustc.edu.cn>
2006-05-02 8:53 ` Wu Fengguang
2006-05-06 6:49 ` Denis Vlasenko
2006-05-02 8:55 ` Arjan van de Ven
2006-05-02 11:39 ` Jan Engelhardt
[not found] ` <20060502114853.GA9983@mail.ustc.edu.cn>
2006-05-02 11:48 ` Wu Fengguang
2006-05-02 22:03 ` Dave Jones
2006-05-02 8:09 ` Jens Axboe [this message]
[not found] ` <20060502082009.GA9038@mail.ustc.edu.cn>
2006-05-02 8:20 ` Wu Fengguang
2006-05-03 22:05 ` Benjamin LaHaise
2006-05-02 19:10 ` Pavel Machek
2006-05-02 23:36 ` Nigel Cunningham
[not found] ` <20060503023505.GB5915@mail.ustc.edu.cn>
2006-05-03 2:35 ` Wu Fengguang
[not found] ` <20060503023223.GA5915@mail.ustc.edu.cn>
2006-05-03 2:32 ` Wu Fengguang
[not found] ` <20060503071948.GD4781@mail.ustc.edu.cn>
2006-05-03 7:19 ` Wu Fengguang
[not found] ` <20060504122830.GA6205@mail.ustc.edu.cn>
2006-05-04 12:28 ` Wu Fengguang
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