From: Jan Harkes <jaharkes@cs.cmu.edu>
To: Daniel Phillips <phillips@nl.linux.org>
Cc: linux-kernel@vger.kernel.org, adilger@turbolinux.com,
ext2-devel@lists.sourceforge.net
Subject: Re: Ext2 Directory Index - Delete Performance
Date: Wed, 18 Apr 2001 21:11:40 -0400 [thread overview]
Message-ID: <20010418211139.A11833@cs.cmu.edu> (raw)
In-Reply-To: <20010419002757Z92249-1659+3@humbolt.nl.linux.org>
In-Reply-To: <20010419002757Z92249-1659+3@humbolt.nl.linux.org>; from phillips@nl.linux.org on Thu, Apr 19, 2001 at 02:27:48AM +0200
On Thu, Apr 19, 2001 at 02:27:48AM +0200, Daniel Phillips wrote:
> more memory. If you have enough memory, the inode cache won't thrash,
> and even when it does, it does so gracefully - performance falls off
> nice and slowly. For example, 250 Meg of inode cache will handle 2
> million inodes with no thrashing at all.
What inode cache are you talking about? According to the slabinfo output
on my machine every inode takes up 480 bytes in the inode_cache slab. So
250MB is only able to hold about half a million inodes in memory.
Jan
next prev parent reply other threads:[~2001-04-19 1:12 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-04-19 0:27 Ext2 Directory Index - Delete Performance Daniel Phillips
2001-04-19 1:11 ` Jan Harkes [this message]
2001-04-19 2:45 ` Rik van Riel
2001-04-19 3:23 ` Alexander Viro
2001-04-19 3:35 ` Rik van Riel
-- strict thread matches above, loose matches on Subject: below --
2001-04-19 1:22 Daniel Phillips
2001-04-19 3:02 ` Rik van Riel
2001-04-19 3:18 ` Alexander Viro
2001-04-19 10:42 Daniel Phillips
2001-04-19 10:55 Daniel Phillips
2001-04-19 11:44 Daniel Phillips
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