From: Andrew Morton <akpm@linux-foundation.org>
To: Christoph Hellwig <hch@infradead.org>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
kenchen@google.com, Andi Kleen <ak@suse.de>
Subject: Re: cache-pipe-buf-page-address-for-non-highmem-arch.patch
Date: Tue, 1 May 2007 02:04:41 -0700 [thread overview]
Message-ID: <20070501020441.10b6a003.akpm@linux-foundation.org> (raw)
In-Reply-To: <20070501085431.GD14364@infradead.org>
On Tue, 1 May 2007 09:54:31 +0100 Christoph Hellwig <hch@infradead.org> wrote:
> > cache-pipe-buf-page-address-for-non-highmem-arch.patch
>
> I still don't like this one at all. If page_address on x86_64 is too
> slow we should fix the root cause.
Fair enough, it is a bit of an ugly thing. And I see no measurements there
on what the overall speedup was for any workload.
Ken, which memory model was in use? sparsemem?
Andi, what are the prospects of speeding any of that up?
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next prev parent reply other threads:[~2007-05-01 9:04 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 ` Andrew Morton [this message]
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 ` swap-prefetch: 2.6.22 -mm merge plans Con Kolivas
2007-05-07 14:28 ` Bill Davidsen
2007-05-07 14:18 ` Bill Davidsen
2007-05-07 17:47 ` Josef Sipek
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