From: Andrea Arcangeli <andrea@suse.de>
To: Sasi Peter <sape@iq.rulez.org>
Cc: Godfrey Livingstone <godfrey@hattaway-associates.com>,
linux-kernel@vger.kernel.org
Subject: Re: Ingo's RAID patch for 2.2.18 final?
Date: Wed, 24 Jan 2001 01:09:36 +0100 [thread overview]
Message-ID: <20010124010936.A1201@athlon.random> (raw)
In-Reply-To: <3A61315C.37318059@hattaway-associates.com> <Pine.LNX.4.30.0101240044040.3522-100000@iq.rulez.org>
In-Reply-To: <Pine.LNX.4.30.0101240044040.3522-100000@iq.rulez.org>; from sape@iq.rulez.org on Wed, Jan 24, 2001 at 12:52:57AM +0100
On Wed, Jan 24, 2001 at 12:52:57AM +0100, Sasi Peter wrote:
> On Sun, 14 Jan 2001, Godfrey Livingstone wrote:
>
> > You MUST apply this patch before the two raid patches. The VM patch stablises
> > the 2.2.18 virtual memory system and if you don't apply my two repackaged
> > patches will fail. The above VM patch has been accepted into 2.2.19pre3 and
> > many people are using it so is not untested.
>
> 2.2.19preXaaX Virtually disabled I/O cache extention-by-swapout, working
> on previous (semi)stock kernels (raid+ide patched) :(
Can you measure a performance degradation because of that? Previous kernels was
certainly not a good example because they was swapping out stuff even with
`cp /dev/zero .`.
> Thus I wouldn't advise VM global till it gets somewhatbalanced to
> non-swapless configs...
You said me your machine start to swapout when the filesystem cache reaches
100mbytes (on your 384Mbyte box). That seems sane behaviour on a misc load. We
could add some additional bit of page aging to swapout more when it worth
indeed, but current balance looks just quite sane.
Andrea
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next prev parent reply other threads:[~2001-01-24 0:09 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-11 21:36 Ingo's RAID patch for 2.2.18 final? Jens Petersohn
2001-01-11 22:22 ` Takacs Sandor
2001-01-11 22:27 ` Alan Cox
2001-01-11 22:42 ` Takacs Sandor
2001-01-11 22:48 ` Jens Petersohn
2001-01-11 23:14 ` Takacs Sandor
2001-01-11 23:56 ` Matthias Kilian
2001-01-12 15:20 ` Oliver Teuber
2001-01-12 1:30 ` Andrea Arcangeli
2001-01-14 4:55 ` Godfrey Livingstone
2001-01-14 7:54 ` junio
2001-01-14 12:35 ` Ingo Molnar
2001-01-23 23:52 ` Sasi Peter
2001-01-24 0:09 ` Andrea Arcangeli [this message]
2001-01-24 0:43 ` Sasi Peter
2001-01-24 1:27 ` Andrea Arcangeli
-- strict thread matches above, loose matches on Subject: below --
2001-01-24 15:05 Sasi Peter
2001-02-16 14:17 ` Andrea Arcangeli
2001-02-16 15:53 ` David Mansfield
2001-02-17 19:23 ` Andrea Arcangeli
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