From: William Lee Irwin III <wli@holomorphy.com>
To: Andrew Morton <akpm@digeo.com>
Cc: Paolo Ciarrocchi <ciarrocchi@linuxmail.org>,
linux-kernel@vger.kernel.org
Subject: Re: LMbench2.0 results
Date: Sat, 7 Sep 2002 16:01:01 -0700 [thread overview]
Message-ID: <20020907230101.GJ888@holomorphy.com> (raw)
In-Reply-To: <3D7A87F1.F3D0865C@digeo.com>
On Sat, Sep 07, 2002 at 09:20:56AM -0700, Andrew Morton wrote:
>>> The fork/exec/mmap slowdown is the rmap overhead. I have some stuff
>>> which partialy improves it.
William Lee Irwin III wrote:
>> Hmm, Where does it enter the mmap() path? PTE instantiation is only done
>> for the VM_LOCKED case IIRC. Otherwise it should be invisible.
On Sat, Sep 07, 2002 at 04:12:49PM -0700, Andrew Morton wrote:
> Oh, is that just the mmap() call itself?
I'm not actually sure what lmbench is doing.
William Lee Irwin III wrote:
>> Perhaps testing with overcommit on would be useful.
On Sat, Sep 07, 2002 at 04:12:49PM -0700, Andrew Morton wrote:
> Well yes - the new overcommit code was a significant hit on the 16ways
> was it not? You have some numbers on that?
I don't remember the before/after numbers, but I can collect some.
Cheers,
Bill
next prev parent reply other threads:[~2002-09-07 22:58 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-07 12:18 LMbench2.0 results Paolo Ciarrocchi
2002-09-07 12:27 ` Jeff Garzik
2002-09-07 18:53 ` Rik van Riel
2002-09-07 21:44 ` Alan Cox
2002-09-13 22:46 ` Pavel Machek
2002-09-07 14:33 ` James Morris
2002-09-09 22:22 ` Cliff White
2002-09-07 16:20 ` Andrew Morton
2002-09-07 20:03 ` William Lee Irwin III
2002-09-07 23:12 ` Andrew Morton
2002-09-07 23:01 ` William Lee Irwin III [this message]
2002-09-07 23:44 ` Martin J. Bligh
2002-09-08 17:07 ` Alan Cox
2002-09-08 18:11 ` Martin J. Bligh
2002-09-08 18:40 ` Andrew Morton
2002-09-08 20:48 ` Hugh Dickins
2002-09-08 21:51 ` Andrew Morton
2002-09-09 21:13 ` Alan Cox
2002-09-09 21:44 ` Andrew Morton
2002-09-09 22:09 ` Alan Cox
2002-09-08 7:51 ` Andrew Morton
2002-09-08 7:37 ` David S. Miller
2002-09-08 8:28 ` William Lee Irwin III
2002-09-08 8:25 ` David S. Miller
2002-09-08 9:12 ` William Lee Irwin III
2002-09-08 20:02 ` Daniel Phillips
2002-09-09 13:37 ` Rik van Riel
2002-09-09 16:16 ` Daniel Phillips
2002-09-09 16:26 ` Martin J. Bligh
2002-09-09 16:55 ` Daniel Phillips
2002-09-09 17:24 ` Martin J. Bligh
2002-09-09 21:11 ` Alan Cox
2002-09-09 16:52 ` Andrew Morton
-- strict thread matches above, loose matches on Subject: below --
2002-09-07 12:40 Paolo Ciarrocchi
2002-09-07 14:09 Shane Shrybman
2002-09-07 18:04 Paolo Ciarrocchi
2002-09-13 22:49 ` Pavel Machek
2002-09-07 18:09 Paolo Ciarrocchi
2002-09-08 7:51 ` Andrew Morton
2002-09-14 18:26 Paolo Ciarrocchi
2002-09-15 18:08 ` Pavel Machek
2002-09-22 12:42 Paolo Ciarrocchi
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