From: Andrew Morton <akpm@digeo.com>
To: Hans Reiser <reiser@namesys.com>
Cc: Paolo Ciarrocchi <ciarrocchi@linuxmail.org>,
linux-kernel@vger.kernel.org, Chris Mason <mason@suse.com>
Subject: Re: [Benchmark] AIM9 results
Date: Mon, 16 Dec 2002 15:25:32 -0800 [thread overview]
Message-ID: <3DFE60EC.3DDA2669@digeo.com> (raw)
In-Reply-To: 3DFE5D3B.4030402@namesys.com
Hans Reiser wrote:
>
> Andrew and Chris, are these changes in performance definitely due to VM
> changes (and not some difference I am not thinking of between 2.5 and
> 2.4 reiserfs code)?
>
aim9 is just doing
for (lots)
close(creat(filename))
ie: deleting a zero-length file.
So I changed inode_setattr() to not call into the filesystem
at all if i_size was not being altered. Not a very interesting
optimisation, but it was simple to do.
It seems that reiserfs_truncate() has a lot of setup overhead.
next prev parent reply other threads:[~2002-12-16 23:18 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-16 22:52 [Benchmark] AIM9 results Paolo Ciarrocchi
2002-12-16 23:09 ` Hans Reiser
2002-12-16 23:25 ` Andrew Morton [this message]
2002-12-16 23:37 ` Andrew Morton
2002-12-17 0:00 ` Hans Reiser
2002-12-18 18:47 ` Cliff White
2002-12-18 19:10 ` Nikita Danilov
2002-12-23 7:13 ` Hans Reiser
-- strict thread matches above, loose matches on Subject: below --
2002-12-10 22:10 [BENCHMARK] " Paolo Ciarrocchi
2002-11-28 13:41 [Benchmark] " Paolo Ciarrocchi
[not found] <r1_20021126213149.29517.qmail@linuxmail.org>
2002-11-28 13:18 ` Bill Davidsen
2002-11-27 22:55 Paolo Ciarrocchi
2002-11-26 21:31 Paolo Ciarrocchi
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