From: Oleg Drokin <green@namesys.com>
To: Ivan Ivanov <ivandi@vamo.orbitel.bg>
Cc: reiserfs-list@namesys.com
Subject: Re: Simple preformance test
Date: Thu, 11 Apr 2002 16:56:27 +0400 [thread overview]
Message-ID: <20020411165627.A992@namesys.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0204111506300.2077-100000@magic.vamo.orbitel.bg>
Hello!
On Thu, Apr 11, 2002 at 03:14:03PM +0300, Ivan Ivanov wrote:
> dd if=/dev/zero of=testdir/$d1/$f1$f2$f3$f4 \
> bs=$block_size count=$blocks_count \
> >/dev/null 2>&1
> rm -f testdir/$d1/$f1$f2$f3$f4
This is the explanation of your speedup.
You try to write to a file, but there is not enough space and file is not
created, but you did not notice.
And then you delete nonexistent files, and no doubts this is very fast
operation ;)
BTW, if you turn off tails, your numbers might get faster, but space usage
will get worse.
Bye,
Oleg
next prev parent reply other threads:[~2002-04-11 12:56 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-11 12:14 Simple preformance test Ivan Ivanov
2002-04-11 12:56 ` Oleg Drokin [this message]
2002-04-11 14:07 ` Ivan Ivanov
2002-04-11 14:12 ` Oleg Drokin
2002-04-11 14:28 ` Hans Reiser
2002-04-11 17:18 ` Ivan Ivanov
2002-04-11 18:26 ` Oleg Drokin
2002-04-11 17:22 ` Ivan Ivanov
2002-04-11 18:26 ` Oleg Drokin
2002-04-11 14:27 ` Yura Umanets
2002-04-11 14:27 ` Oleg Drokin
2002-04-11 17:11 ` Ivan Ivanov
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