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From: William Lee Irwin III <wli@holomorphy.com>
To: "Ihar 'Philips' Filipau" <filia@softhome.net>
Cc: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [OT] No Swap. Re: [BUG 2.6.90-test5] kernel shits itself with 48mb ram under moderate load
Date: Sun, 28 Sep 2003 11:04:50 -0700	[thread overview]
Message-ID: <20030928180450.GN4306@holomorphy.com> (raw)
In-Reply-To: <3F77203F.8010704@softhome.net>

On Sun, Sep 28, 2003 at 07:54:07PM +0200, Ihar 'Philips' Filipau wrote:
>   That's what matters. Try to work in vim if it is permanently get 
> swaped out. _*Very*_ _*very*_ not nice.
>   And there is no memory pressure - kernel just decided to enlarge I/O 
> cache... 100% stupid.
>   I personally prefer to have statical I/O cache - never saw it working 
> reliably with dynamic allocation.

This is a different question from what I had in mind. There are some
controls in 2.6.x to control the relative tendencies to evict unmapped
pagecache vs. unmapping etc. anonymous memory. I'd try adjusting
/proc/sys/vm/swappiness and reporting how (in)effective that is, then
if that still doesn't work, various things can be adjusted.


-- wli

  reply	other threads:[~2003-09-28 18:03 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <ArQ0.821.23@gated-at.bofh.it>
     [not found] ` <ArQ0.821.25@gated-at.bofh.it>
     [not found]   ` <ArQ0.821.21@gated-at.bofh.it>
     [not found]     ` <ArZC.8f1.9@gated-at.bofh.it>
2003-09-27 19:59       ` [OT] No Swap. Re: [BUG 2.6.90-test5] kernel shits itself with 48mb ram under moderate load Ihar 'Philips' Filipau
2003-09-27 20:13         ` William Lee Irwin III
2003-09-27 20:25           ` Roger Luethi
2003-09-29  5:02             ` Nick Piggin
2003-09-29  5:08               ` William Lee Irwin III
2003-09-27 20:21         ` Roger Luethi
2003-09-28 13:06           ` Ihar 'Philips' Filipau
2003-09-28 15:52             ` Mikulas Patocka
2003-09-28 17:21               ` Ihar 'Philips' Filipau
2003-09-28 17:31                 ` Mikulas Patocka
2003-09-28 17:54                   ` Ihar 'Philips' Filipau
2003-09-28 18:04                     ` William Lee Irwin III [this message]
2003-09-28 17:33                 ` Mr. James W. Laferriere
2003-09-28 17:57                   ` Ihar 'Philips' Filipau
     [not found] <Apl1.4ur.9@gated-at.bofh.it>
     [not found] ` <Ar3B.6UW.21@gated-at.bofh.it>
2003-09-27 18:13   ` Ihar 'Philips' Filipau
2003-09-27 18:27     ` Roger Luethi

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