From: Chris Wedgwood <cw@f00f.org>
To: Nico Schottelius <nicos@pcsystems.de>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: ext3/reiserfs: ext3fine, reiser got OOPS!
Date: Mon, 6 Aug 2001 02:14:55 +1200 [thread overview]
Message-ID: <20010806021455.B21919@weta.f00f.org> (raw)
In-Reply-To: <3B6CAE4E.17850717@pcsystems.de> <20010805172718.B20716@weta.f00f.org> <3B6D4738.6F77A5E0@pcsystems.de>
In-Reply-To: <3B6D4738.6F77A5E0@pcsystems.de>
On Sun, Aug 05, 2001 at 03:16:40PM +0200, Nico Schottelius wrote:
Mount and delete.
reiserfs
I created 200000 empty files, and then deleted them.
In many cases (ie. lots of files in a small number of directories),
reiserfs is _much_ faster then ext2 and ext3.
This is fairly well established.
For example, on a rather humble machine (dual PIII 866) the time to
extract a while bunch of files, including compression time and delete
them (whilst the machine was doing other things):
cw:tty2@tapu(cw)$ /usr/bin/time tx archive/freedb/freedb-complete-20010617.tar.bz2
128.87user 152.89system 5:33.36elapsed 84%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (2141major+2086minor)pagefaults 0swaps
cw:tty2@tapu(cw)$ du -s freedb-complete-20010617/
1380821 freedb-complete-20010617
cw:tty2@tapu(cw)$ find freedb-complete-20010617/ -type f -print|wc -l
350065
cw:tty2@tapu(cw)$ ls -F freedb-complete-20010617/
COPYING blues/ country/ folk/ misc/ reggae/ soundtrack/
README classical/ data/ jazz/ newage/ rock/
<stress memory and cause swapping to purge much of page cache>
cw:tty2@tapu(cw)$ /usr/bin/time rm -rf freedb-complete-20010617/
0.68user 66.48system 3:22.71elapsed 33%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (111major+17minor)pagefaults 0swaps
Hot-cache, the delete time is about 15seconds from memory (I posted
results to the reiserfs list a few weeks back).
--cw
prev parent reply other threads:[~2001-08-05 14:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-08-05 2:24 Nico Schottelius
2001-08-05 5:27 ` Chris Wedgwood
2001-08-05 13:16 ` Nico Schottelius
2001-08-05 14:14 ` Chris Wedgwood [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20010806021455.B21919@weta.f00f.org \
--to=cw@f00f.org \
--cc=linux-kernel@vger.kernel.org \
--cc=nicos@pcsystems.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®