From: Vladimir Saveliev <vs@namesys.com>
To: linux-kernel@vger.kernel.org
Cc: reiserfs-dev@namesys.com
Subject: file write performance drop between 2.5.60 and 2.5.70
Date: Wed, 4 Jun 2003 20:17:53 +0400 [thread overview]
Message-ID: <200306042017.53435.vs@namesys.com> (raw)
Hi
It looks like file write performance dropped somewhere between 2.5.60 and
2.5.70.
Doing
time dd if=/dev/zero of=file bs=4096 count=60000
on a box with Xeon(TM) CPU 2.40GHz and 1gb of RAM
I get for ext2
2.5.60: real 1.42 sys 0.77
2.5.70: real 1.73 sys 1.23
for reiserfs
2.5.60: real 1.62 sys 1.56
2.5.70: real 1.90 sys 1.86
Any ideas of what could cause this drop?
Thanks,
vs
next reply other threads:[~2003-06-04 16:04 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-04 16:17 Vladimir Saveliev [this message]
2003-06-04 18:02 ` file write performance drop between 2.5.60 and 2.5.70 Felipe Alfaro Solana
2003-06-05 18:37 ` Mike Fedyk
2003-06-05 19:24 ` Felipe Alfaro Solana
2003-06-05 19:27 ` OFFTOPIC: " uaca
2003-06-05 1:52 ` Andrew Morton
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