From: Ulrich Lukas <stellplatz-nr.13a@datenparkplatz.de>
To: unlisted-recipients:; (no To-header on input)
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Poor desktop responsiveness with background I/O-operations
Date: Mon, 21 Sep 2009 09:48:44 +0200 [thread overview]
Message-ID: <4AB72FDC.5090403@datenparkplatz.de> (raw)
In-Reply-To: <1253507034.23414.90.camel@marge.simson.net>
Hi and thanks for your reply!
Mike Galbraith wrote:
> nicing a shell or the dd should (and does) help a LOT.
If this is the only way to influence this, maybe the default settings
for the niceness of interactive and non-interactive tasks are not the
best choice. (Maybe a distribution problem in this case)
> reads are sync, more heavily affected by seek latency than writes.
But how does this explain the seconds-long delays?
If an interactive process causes a lot of seeks because of reads/writes
which "are sync", I see how this can greatly slow down otherwise
pipelined write operations, but the other way around?
next prev parent reply other threads:[~2009-09-21 7:48 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-20 3:08 Poor desktop responsiveness with background I/O-operations Ulrich Lukas
2009-09-20 4:11 ` Thomas Fjellstrom
2009-09-20 6:07 ` Arjan van de Ven
2009-09-20 8:50 ` Ulrich Lukas
2009-09-20 17:17 ` Nikos Chantziaras
2009-09-20 19:38 ` Mike Galbraith
2009-09-21 0:22 ` Justin P. Mattock
2009-09-21 4:23 ` Mike Galbraith
2009-09-21 7:48 ` Ulrich Lukas [this message]
2009-09-21 8:06 ` Mike Galbraith
2009-09-21 19:47 ` James Cloos
2009-09-21 22:47 ` Nikos Chantziaras
2009-09-21 23:34 ` James Cloos
2009-09-22 7:06 ` Mike Galbraith
2009-09-22 9:20 ` Mike Galbraith
2009-09-22 11:22 ` Henrique de Moraes Holschuh
2009-09-22 11:32 ` Mike Galbraith
2009-09-22 16:58 ` James Cloos
2009-09-20 17:04 ` Ulrich Lukas
2009-09-20 20:22 ` Jiri Kosina
2009-09-20 22:04 ` Jan Kara
2009-09-21 7:25 ` Mike Galbraith
2009-09-21 7:33 ` Arjan van de Ven
2009-09-21 7:41 ` Mike Galbraith
2009-09-21 7:47 ` Mike Galbraith
2009-09-21 2:59 ` Ulrich Lukas
[not found] <dmlhK-6ws-5@gated-at.bofh.it>
[not found] ` <dmnMy-8tg-7@gated-at.bofh.it>
2009-09-20 18:51 ` Sanjoy Mahajan
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