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From: Ken Brownfield <brownfld@irridia.com>
To: linux-kernel@vger.kernel.org
Subject: Re: [VM] 2.4.14/15-pre4 too "swap-happy"?
Date: Mon, 19 Nov 2001 12:31:25 -0600	[thread overview]
Message-ID: <20011119123125.B1439@asooo.flowerfire.com> (raw)
In-Reply-To: <200111191801.fAJI1l922388@neosilicon.transmeta.com> <Pine.LNX.4.33.0111191003470.8205-100000@penguin.transmeta.com>
In-Reply-To: <Pine.LNX.4.33.0111191003470.8205-100000@penguin.transmeta.com>; from torvalds@transmeta.com on Mon, Nov 19, 2001 at 10:07:58AM -0800

Linus, so far 2.4.15-pre4 with your patch does not reproduce the kswapd
issue with Oracle, but I do need to perform more deterministic tests
before I can fully sign off on that.

BTW, didn't your patch go into -pre5?  Or is there an additional mod in
-pre6 that we should try?
-- 
Ken.
brownfld@irridia.com

On Mon, Nov 19, 2001 at 10:07:58AM -0800, Linus Torvalds wrote:
| 
| On Mon, 19 Nov 2001, Sebastian Dröge wrote:
| > Hi,
| > I couldn't answer ealier because I had some problems with my ISP
| > the heavy swapping problem while burning a cd is solved in pre6aa1
| > but if you want i can do some statistics tommorow
| 
| Well, pre6aa1 performs really badly exactly because it by default doesn't
| swap enough even on _normal_ loads because Andrea is playing with some
| tuning (and see the bad results of that tuning in the VM testing by
| rwhron@earthlink.net).
| 
| So the pre6aa1 numbers are kind of suspect - lack of swapping may not be
| due to fixing the problem, but due to bad tuning.
| 
| Does plain pre6 solve it? Plain pre6 has a fix where a locked shared
| memory area would previously cause unnecessary swapping, and maybe the CD
| burning buffer is using shmlock..
| 
| 		Linus
| 
| -
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  reply	other threads:[~2001-11-19 18:31 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <200111191801.fAJI1l922388@neosilicon.transmeta.com>
2001-11-19 18:07 ` [VM] 2.4.14/15-pre4 too "swap-happy"? Linus Torvalds
2001-11-19 18:31   ` Ken Brownfield [this message]
2001-11-19 19:23     ` Linus Torvalds
2001-11-19 23:39       ` Ken Brownfield
2001-11-19 23:52         ` Linus Torvalds
2001-11-20  0:18           ` M. Edward (Ed) Borasky
2001-11-20  0:25           ` Ken Brownfield
2001-11-20  0:31             ` Linus Torvalds
2001-11-20  3:09           ` Ken Brownfield
2001-11-20  3:30             ` Linus Torvalds
2001-11-20  3:32             ` Andrea Arcangeli
2001-11-20  5:54               ` Ken Brownfield
2001-11-20  6:50                 ` Linus Torvalds
2001-12-01 13:15                   ` Slight Return (was Re: [VM] 2.4.14/15-pre4 too "swap-happy"?) Ken Brownfield
2001-12-08 13:12                     ` Ken Brownfield
2001-12-09 18:51                       ` Marcelo Tosatti
2001-12-10  6:56                         ` Ken Brownfield
2001-11-19 19:30     ` [VM] 2.4.14/15-pre4 too "swap-happy"? Ken Brownfield
2001-11-19 18:26       ` Marcelo Tosatti
2001-11-19 19:44   ` Slo Mo Snail
2001-11-20  0:48 Yan, Noah
  -- strict thread matches above, loose matches on Subject: below --
2001-11-15  8:38 janne
2001-11-15  9:05 ` janne
2001-11-15 17:44   ` Mike Galbraith
2001-11-16  0:14     ` janne
     [not found] <200111141243.fAEChS915731@neosilicon.transmeta.com>
2001-11-14 16:34 ` Linus Torvalds
2001-11-19 18:01   ` Sebastian Dröge
2001-11-19 18:18   ` Simon Kirby
2001-11-14 12:44 Sebastian Dröge
2001-11-14 15:00 ` Rik van Riel

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