From: Andrew Morton <akpm@osdl.org>
To: Marc Singer <elf@buici.com>
Cc: wli@holomorphy.com, linux-kernel@vger.kernel.org, elf@buici.com
Subject: Re: vmscan.c heuristic adjustment for smaller systems
Date: Sat, 17 Apr 2004 16:21:25 -0700 [thread overview]
Message-ID: <20040417162125.3296430a.akpm@osdl.org> (raw)
In-Reply-To: <20040417212958.GA8722@flea>
Marc Singer <elf@buici.com> wrote:
>
> I'd say that there is no statistically significant difference between
> these sets of times. However, after I've run the test program, I run
> the command "ls -l /proc"
>
> swappiness
> 60 (default) 0
> ------------ --------
> elapsed time(s) 18 1
> 30 1
> 33 1
How on earth can it take half a minute to list /proc?
> This is the problem. Once RAM fills with IO buffers, the kernel's
> tendency to evict mapped pages ruins interactive performance.
Is everything here on NFS, or are local filesystemms involved? (What does
"mount" say?)
next prev parent reply other threads:[~2004-04-17 23:21 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-17 19:38 William Lee Irwin III
2004-04-17 21:29 ` Marc Singer
2004-04-17 21:33 ` William Lee Irwin III
2004-04-17 21:52 ` Marc Singer
2004-04-18 1:06 ` William Lee Irwin III
2004-04-18 5:05 ` Marc Singer
2004-04-17 23:21 ` Andrew Morton [this message]
2004-04-17 23:30 ` Marc Singer
2004-04-17 23:51 ` Andrew Morton
2004-04-18 0:11 ` Trond Myklebust
2004-04-18 0:23 ` Marc Singer
2004-04-18 3:37 ` Nick Piggin
2004-04-18 4:17 ` William Lee Irwin III
2004-04-18 4:41 ` Nick Piggin
2004-04-18 5:10 ` Marc Singer
2004-04-18 5:19 ` Nick Piggin
2004-04-18 5:35 ` Marc Singer
2004-04-18 5:41 ` Nick Piggin
2004-04-18 23:44 ` Marc Singer
2004-04-18 9:29 ` Russell King
2004-04-18 1:59 ` William Lee Irwin III
2004-04-18 3:53 ` Andrew Morton
2004-04-18 5:38 ` Marc Singer
2004-04-18 5:52 ` Andrew Morton
2004-04-18 6:15 ` Marc Singer
2004-04-19 0:26 ` Rik van Riel
2004-04-19 0:39 ` Marc Singer
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