From: Linus Torvalds <torvalds@osdl.org>
To: Chris Wedgwood <cw@f00f.org>
Cc: Mike Fedyk <mfedyk@matchmail.com>, linux-kernel@vger.kernel.org
Subject: Re: Large slab cache in 2.6.1
Date: Sat, 21 Feb 2004 19:03:50 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.58.0402211901520.3301@ppc970.osdl.org> (raw)
In-Reply-To: <20040222023638.GA13840@dingdong.cryptoapps.com>
On Sat, 21 Feb 2004, Chris Wedgwood wrote:
>
> Forcing paging will push this down to acceptable levels but it's a
> really irritating solution --- I'm still trying to think of a better
> way to stop the dentries from using such a disproportionate amount of
> memory.
Why?
It's quite likely that especially on a fairly idle machine, the dentry
cache really _should_ be the biggest single memory user.
Why? Because an idle machine tends to largely be dominated by things like
"updatedb" and friends running. If there isn't any other real activity,
there's no reason for a big page cache, nor is there anything that would
put memory pressure on the dentries, so they grow as much as they can.
Do you see any actual bad behaviour from this?
Linus
next prev parent reply other threads:[~2004-02-22 2:58 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-22 0:50 Mike Fedyk
2004-02-22 1:09 ` Mike Fedyk
2004-02-22 1:20 ` William Lee Irwin III
2004-02-22 2:03 ` Mike Fedyk
2004-02-22 2:17 ` William Lee Irwin III
2004-02-22 2:38 ` Nick Piggin
2004-02-22 2:46 ` William Lee Irwin III
2004-02-22 2:40 ` Mike Fedyk
2004-02-22 2:58 ` Nick Piggin
2004-02-22 2:33 ` Nick Piggin
2004-02-22 2:46 ` Nick Piggin
2004-02-22 2:54 ` Nick Piggin
2004-02-22 2:36 ` Chris Wedgwood
2004-02-22 3:03 ` Linus Torvalds [this message]
2004-02-22 3:11 ` Chris Wedgwood
2004-02-22 3:28 ` Linus Torvalds
2004-02-22 3:29 ` Chris Wedgwood
2004-02-22 3:31 ` Chris Wedgwood
2004-02-22 4:01 ` Nick Piggin
2004-02-22 4:10 ` Nick Piggin
2004-02-22 4:30 ` Nick Piggin
2004-02-22 4:41 ` Mike Fedyk
2004-02-22 5:37 ` Nick Piggin
2004-02-22 5:44 ` Chris Wedgwood
2004-02-22 5:52 ` Nick Piggin
2004-02-22 5:50 ` Mike Fedyk
2004-02-22 6:01 ` Nick Piggin
2004-02-22 6:17 ` Andrew Morton
2004-02-22 6:35 ` Nick Piggin
2004-02-22 6:57 ` Andrew Morton
2004-02-22 7:20 ` Nick Piggin
2004-02-22 8:36 ` Chris Wedgwood
2004-02-22 9:13 ` Andrew Morton
2004-02-23 0:16 ` Nick Piggin
2004-02-23 0:26 ` Andrew Morton
2004-02-23 0:34 ` Nick Piggin
2004-02-23 0:46 ` Andrew Morton
2004-02-23 0:54 ` Nick Piggin
2004-02-23 1:00 ` Andrew Morton
2004-02-23 1:06 ` Nick Piggin
2004-02-22 6:45 ` Mike Fedyk
2004-02-22 6:58 ` Nick Piggin
2004-02-22 7:20 ` Mike Fedyk
2004-02-22 6:09 ` Andrew Morton
2004-02-22 17:05 ` Linus Torvalds
2004-02-23 0:29 ` Nick Piggin
2004-02-22 6:15 ` Andrew Morton
2004-02-22 16:08 ` Martin J. Bligh
2004-02-22 17:55 ` Jamie Lokier
2004-02-23 3:45 ` Mike Fedyk
2004-02-22 21:13 ` Dipankar Sarma
2004-02-22 14:03 ` Ed Tomlinson
2004-02-23 2:28 ` Mike Fedyk
2004-02-23 3:33 ` Ed Tomlinson
2004-02-22 3:21 ` Mike Fedyk
2004-02-22 11:00 Manfred Spraul
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