From: Leroy van Logchem <leroy.vanlogchem@gmail.com>
To: linux-kernel@vger.kernel.org
Subject: Re: Understanding I/O behaviour
Date: Sat, 7 Jul 2007 13:23:47 +0000 (UTC) [thread overview]
Message-ID: <loom.20070707T151648-630@post.gmane.org> (raw)
In-Reply-To: 197707.68164.qm@web32604.mail.mud.yahoo.com
> I am just now playing with dirty_ratio. Anybody knows what the lower
> limit is? "0" seems acceptabel, but does it actually imply "write out
> immediatelly"?
You should "watch -n 1 cat /proc/meminfo" and monitor the Dirty and Writeback
while lowering the amount the kernel may keep dirty. The solution we are hoping
for is are the per device dirty throttling -v7 patches.
--
Leroy
next prev parent reply other threads:[~2007-07-07 13:24 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fa.gAvf+r9fiPwNwNVqahYy5u1/Is0@ifi.uio.no>
2007-07-05 23:47 ` Understanding I/O behaviour Robert Hancock
2007-07-05 23:53 ` Jesper Juhl
2007-07-06 7:54 ` Martin Knoblauch
2007-07-06 10:15 ` Brice Figureau
2007-07-06 10:11 ` Martin Knoblauch
2007-07-07 13:23 ` Leroy van Logchem [this message]
2007-07-06 14:25 Daniel J Blueman
2007-07-06 15:17 ` Martin Knoblauch
2007-07-06 15:44 ` Daniel J Blueman
-- strict thread matches above, loose matches on Subject: below --
2007-07-06 12:44 Martin Knoblauch
2007-07-06 11:03 Martin Knoblauch
2007-07-06 10:18 Martin Knoblauch
2007-07-05 15:40 Martin Knoblauch
2007-07-05 18:15 ` Andrew Lyon
2007-07-05 20:22 ` Jesper Juhl
2007-07-08 21:28 ` Jesper Juhl
2007-07-09 8:47 ` Martin Knoblauch
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