From: Jan Kasprzak <kas@fi.muni.cz>
To: Christoph Hellwig <hch@infradead.org>,
linux-kernel@vger.kernel.org, linux-xfs@oss.sgi.com
Subject: Re: XFS lstat() _very_ slow on SMP
Date: Sun, 29 May 2005 20:37:50 +0200 [thread overview]
Message-ID: <20050529183750.GA5274@fi.muni.cz> (raw)
In-Reply-To: <20050528091123.GA19330@infradead.org>
Christoph Hellwig wrote:
: > ("time ./bigtree.pl /new-volume 3 128" for 128*128*128 files), and then
: > "strace -c find /new-volume -type f -mtime +1000 -print" (the numbers
: > without strace are almost the same, so strace is not a problem here).
:
: I couldn't reproduce the odd case here. Could you try to get some profiling
: data with oprofile for the odd and one of the normal cases?
I have solved this by adding "ihashsize=65537" to /etc/fstab.
Now my find(1) is limited by the disk speed instead of system time.
-Y.
--
| Jan "Yenya" Kasprzak <kas at {fi.muni.cz - work | yenya.net - private}> |
| GPG: ID 1024/D3498839 Fingerprint 0D99A7FB206605D7 8B35FCDE05B18A5E |
| http://www.fi.muni.cz/~kas/ Czech Linux Homepage: http://www.linux.cz/ |
-- Yes. CVS is much denser. --
-- CVS is also total crap. So your point is? --Linus Torvalds --
prev parent reply other threads:[~2005-05-29 18:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-16 16:25 Jan Kasprzak
2005-05-18 14:02 ` Christoph Hellwig
2005-05-18 17:45 ` Jan Kasprzak
2005-05-28 9:11 ` Christoph Hellwig
2005-05-29 18:37 ` Jan Kasprzak [this message]
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