From: Con Kolivas <kernel@kolivas.org>
To: Ray Lee <ray-lk@madrabbit.org>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>,
Ingo Molnar <mingo@elte.hu>, ck list <ck@vds.kolivas.org>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: swap-prefetch: 2.6.22 -mm merge plans
Date: Thu, 10 May 2007 13:58:30 +1000 [thread overview]
Message-ID: <200705101358.31267.kernel@kolivas.org> (raw)
In-Reply-To: <2c0942db0705092048m38b36e7fo3a7c2c59fe1612b2@mail.gmail.com>
On Thursday 10 May 2007 13:48, Ray Lee wrote:
> On 5/9/07, Nick Piggin <nickpiggin@yahoo.com.au> wrote:
> > You said it helped with the updatedb problem. That says we should look at
> > why it is going bad first, and for example improve use-once algorithms.
> > After we do that, then swap prefetching might still help, which is fine.
>
> Nick, if you're volunteering to do that analysis, then great. If not,
> then you're just providing a airy hope with nothing to back up when or
> if that work would ever occur.
>
> Further, if you or someone else *does* do that work, then guess what,
> we still have the option to rip out the swap prefetching code after
> the hypothetical use-once improvements have been proven and merged.
> Which, by the way, I've watched people talk about since 2.4. That was,
> y'know, a *while* ago.
>
> So enough with the stop energy, okay? You're better than that.
>
> Con? He is right about the last feature to go in needs to work
> gracefully with what's there now. However, it's not unheard of for
> authors of other sections of code to help out with incompatibilities
> by answering politely phrased questions for guidance. Though the
> intersection of users between cpusets and desktop systems seems small
> indeed.
Let's just set the record straight. I actually discussed cpusets over a year
ago in this nonsense and was told by sgi folk there was no need to get my
head around cpusets and honouring node placement should be enough which, by
the way, swap prefetch does. So I by no means ignored this; we just hit an
impasse on just how much more featured it should be for the sake of a goddamn
home desktop pc feature.
Anyway why the hell am I resurrecting this thread? The code is declared dead
already. Leave it be.
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next prev parent reply other threads:[~2007-05-10 3:58 UTC|newest]
Thread overview: 180+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-30 23:20 2.6.22 -mm merge plans Andrew Morton
2007-04-30 23:59 ` Bill Irwin
2007-05-01 0:09 ` nfsd/md patches " Neil Brown
2007-05-01 9:08 ` Christoph Hellwig
2007-05-01 9:15 ` Andrew Morton
2007-05-01 9:21 ` Christoph Hellwig
2007-05-01 9:52 ` Neil Brown
2007-05-01 10:15 ` Christoph Hellwig
2007-05-01 14:34 ` Trond Myklebust
2007-05-01 0:54 ` MADV_FREE functionality Rik van Riel
2007-05-01 1:18 ` Andrew Morton
2007-05-01 1:23 ` Rik van Riel
2007-05-01 7:13 ` Jakub Jelinek
2007-05-01 1:23 ` Ulrich Drepper
2007-05-01 1:39 ` 2.6.22 -mm merge plans Stefan Richter
2007-05-01 2:30 ` 2.6.22 -mm merge plans (RE: input) Dmitry Torokhov
2007-05-01 8:11 ` 2.6.22 -mm merge plans -- pfn_valid_within Andy Whitcroft
2007-05-01 8:19 ` Andrew Morton
2007-05-01 8:44 ` 2.6.22 -mm merge plans -- vm bugfixes Nick Piggin
2007-05-01 8:54 ` Andrew Morton
2007-05-01 19:31 ` Hugh Dickins
2007-05-02 3:08 ` Nick Piggin
2007-05-02 9:15 ` Nick Piggin
2007-05-02 14:00 ` Hugh Dickins
2007-05-03 1:32 ` Nick Piggin
2007-05-03 10:37 ` Christoph Hellwig
2007-05-03 12:56 ` Nick Piggin
2007-05-04 9:23 ` Nick Piggin
2007-05-04 9:43 ` Nick Piggin
2007-05-08 3:03 ` Benjamin Herrenschmidt
2007-05-03 12:24 ` Hugh Dickins
2007-05-03 12:43 ` Nick Piggin
2007-05-03 12:58 ` Hugh Dickins
2007-05-03 13:08 ` Nick Piggin
2007-05-03 16:52 ` Andrew Morton
2007-05-04 4:16 ` Nick Piggin
2007-05-09 12:34 ` Nick Piggin
2007-05-09 14:28 ` Hugh Dickins
2007-05-09 14:45 ` Nick Piggin
2007-05-09 15:38 ` Hugh Dickins
2007-05-09 22:24 ` Nick Piggin
2007-05-01 8:46 ` pcmcia ioctl removal Christoph Hellwig
2007-05-01 8:56 ` Russell King
2007-05-01 8:57 ` Willy Tarreau
2007-05-01 9:08 ` Andrew Morton
2007-05-01 14:46 ` Adrian Bunk
2007-05-01 9:16 ` Robert P. J. Day
2007-05-01 9:44 ` Willy Tarreau
2007-05-01 10:16 ` Robert P. J. Day
2007-05-01 10:26 ` Gabriel C
2007-05-01 10:52 ` Willy Tarreau
2007-05-01 10:12 ` Jan Engelhardt
2007-05-01 11:00 ` Willy Tarreau
2007-05-01 12:06 ` Konstantin Münning
2007-05-01 13:56 ` Rogan Dawes
2007-05-01 19:10 ` Russell King
2007-05-01 20:41 ` Jan Engelhardt
2007-05-09 12:54 ` Pavel Machek
2007-05-09 13:00 ` Robert P. J. Day
2007-05-09 13:03 ` Adrian Bunk
2007-05-09 19:11 ` Romano Giannetti
2007-05-10 12:40 ` Adrian Bunk
2007-05-01 8:48 ` pci hotplug patches Christoph Hellwig
2007-05-02 3:57 ` Greg KH
2007-05-13 20:59 ` Christoph Hellwig
2007-05-14 11:48 ` Greg KH
2007-05-01 8:54 ` cache-pipe-buf-page-address-for-non-highmem-arch.patch Christoph Hellwig
2007-05-01 9:04 ` cache-pipe-buf-page-address-for-non-highmem-arch.patch Andrew Morton
2007-05-01 11:31 ` cache-pipe-buf-page-address-for-non-highmem-arch.patch Andi Kleen
2007-05-03 3:48 ` cache-pipe-buf-page-address-for-non-highmem-arch.patch Ken Chen
2007-05-01 8:55 ` consolidate-generic_writepages-and-mpage_writepages.patch Christoph Hellwig
2007-05-01 9:17 ` 2.6.22 -mm merge plans Pekka Enberg
2007-05-01 9:24 ` Christoph Hellwig
2007-05-01 9:37 ` Peter Zijlstra
2007-05-01 12:19 ` Andi Kleen
2007-05-01 17:12 ` Pekka Enberg
2007-05-01 10:16 ` fragmentation avoidance " Mel Gorman
2007-05-01 13:02 ` 2.6.22 -mm merge plans -- lumpy reclaim Andy Whitcroft
2007-05-01 18:03 ` Peter Zijlstra
2007-05-01 19:00 ` Andrew Morton
2007-05-01 14:54 ` fragmentation avoidance Re: 2.6.22 -mm merge plans Christoph Lameter
2007-05-01 19:00 ` Mel Gorman
2007-05-01 18:57 ` Andrew Morton
2007-05-07 13:07 ` Yasunori Goto
2007-05-01 14:31 ` 2.6.22 -mm merge plans: mm-more-rmap-checking Hugh Dickins
2007-05-02 1:42 ` Nick Piggin
2007-05-02 13:17 ` Hugh Dickins
2007-05-03 0:18 ` Nick Piggin
2007-05-01 16:56 ` 2.6.22 -mm merge plans Zan Lynx
2007-05-01 17:06 ` 2.6.22 -mm merge plans: mm-detach_vmas_to_be_unmapped-fix Hugh Dickins
2007-05-01 18:10 ` 2.6.22 -mm merge plans: slub Hugh Dickins
2007-05-01 19:25 ` Christoph Lameter
2007-05-01 19:55 ` Andrew Morton
2007-05-01 20:19 ` Hugh Dickins
2007-05-01 20:36 ` Andrew Morton
2007-05-01 20:46 ` Christoph Lameter
2007-05-01 21:09 ` Andrew Morton
2007-05-02 12:54 ` Hugh Dickins
2007-05-02 17:03 ` Christoph Lameter
2007-05-02 19:11 ` Andrew Morton
2007-05-02 19:42 ` Christoph Lameter
2007-05-02 19:54 ` Sam Ravnborg
2007-05-02 20:14 ` Christoph Lameter
2007-05-02 18:52 ` Siddha, Suresh B
2007-05-02 18:58 ` Christoph Lameter
2007-05-01 21:08 ` Christoph Lameter
2007-05-02 12:45 ` Hugh Dickins
2007-05-02 17:01 ` Christoph Lameter
2007-05-02 18:08 ` Hugh Dickins
2007-05-02 18:28 ` Christoph Lameter
2007-05-02 18:42 ` Andrew Morton
2007-05-02 18:53 ` Christoph Lameter
2007-05-02 17:25 ` Christoph Lameter
2007-05-02 18:36 ` Hugh Dickins
2007-05-02 18:39 ` Christoph Lameter
2007-05-02 18:57 ` Andrew Morton
2007-05-02 19:01 ` Christoph Lameter
2007-05-02 19:18 ` Pekka Enberg
2007-05-02 19:34 ` Christoph Lameter
2007-05-02 19:43 ` Christoph Lameter
2007-05-03 8:15 ` Andrew Morton
2007-05-03 8:27 ` William Lee Irwin III
2007-05-03 16:30 ` Christoph Lameter
2007-05-03 8:46 ` Hugh Dickins
2007-05-03 8:57 ` Andrew Morton
2007-05-03 9:15 ` Hugh Dickins
2007-05-03 21:04 ` 2.6.22 -mm merge plans: slub on PowerPC Hugh Dickins
2007-05-03 21:15 ` Christoph Lameter
2007-05-03 22:41 ` Hugh Dickins
2007-05-04 0:25 ` Benjamin Herrenschmidt
2007-05-04 0:54 ` Christoph Lameter
2007-05-03 16:45 ` 2.6.22 -mm merge plans: slub Christoph Lameter
2007-05-03 15:54 ` swap-prefetch: 2.6.22 -mm merge plans Ingo Molnar
2007-05-03 16:15 ` Michal Piotrowski
2007-05-03 16:23 ` Michal Piotrowski
2007-05-03 22:14 ` Con Kolivas
2007-05-04 7:34 ` Nick Piggin
2007-05-04 8:52 ` Ingo Molnar
2007-05-04 9:09 ` Nick Piggin
2007-05-04 12:10 ` Con Kolivas
2007-05-05 8:42 ` Con Kolivas
2007-05-06 10:13 ` [ck] " Antonino Ingargiola
2007-05-06 18:22 ` Jory A. Pratt
2007-05-09 23:28 ` Con Kolivas
2007-05-10 0:05 ` Nick Piggin
2007-05-10 1:34 ` Con Kolivas
2007-05-10 1:56 ` Nick Piggin
2007-05-10 3:48 ` Ray Lee
2007-05-10 3:56 ` Nick Piggin
2007-05-10 5:52 ` Ray Lee
2007-05-10 7:04 ` Nick Piggin
2007-05-10 7:20 ` William Lee Irwin III
2007-05-10 12:34 ` Ray Lee
2007-05-12 4:46 ` [PATCH] mm: swap prefetch improvements Con Kolivas
2007-05-12 5:03 ` Paul Jackson
2007-05-12 5:15 ` Con Kolivas
2007-05-12 5:51 ` Paul Jackson
2007-05-12 7:28 ` Con Kolivas
2007-05-12 8:14 ` Paul Jackson
2007-05-12 8:21 ` Con Kolivas
2007-05-12 8:37 ` Paul Jackson
2007-05-12 8:57 ` [PATCH respin] " Con Kolivas
2007-05-21 10:03 ` [PATCH] " Ingo Molnar
2007-05-21 13:44 ` Con Kolivas
2007-05-21 16:00 ` Ingo Molnar
2007-05-22 10:15 ` Antonino Ingargiola
2007-05-22 10:20 ` Con Kolivas
2007-05-22 10:25 ` Ingo Molnar
2007-05-22 10:37 ` Con Kolivas
2007-05-22 10:46 ` Ingo Molnar
2007-05-22 10:54 ` Con Kolivas
2007-05-22 10:57 ` Ingo Molnar
2007-05-22 11:04 ` Con Kolivas
[not found] ` <20070522111104.GA14950@elte.hu>
2007-05-22 11:12 ` Ingo Molnar
2007-05-22 20:18 ` [ck] " Michael Chang
2007-05-22 20:31 ` Ingo Molnar
2007-05-10 3:58 ` Con Kolivas [this message]
2007-05-07 14:28 ` swap-prefetch: 2.6.22 -mm merge plans Bill Davidsen
2007-05-07 14:18 ` Bill Davidsen
2007-05-07 17:47 ` Josef Sipek
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