From: Etaoin Shrdlu <shrdlu@unlimitedmail.org>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] Performance problem at writing big files and Multitasking
Date: Tue, 6 Feb 2007 22:16:45 +0100 [thread overview]
Message-ID: <200702062216.45220.shrdlu@unlimitedmail.org> (raw)
In-Reply-To: <6142e6140702061231x5a517c2fvf29f87efacb2f576@mail.gmail.com>
On Tuesday 6 February 2007 21:31, Daniel Pielmeier wrote:
> On the other i recently recognized when i doing some video editing
> i.e. demultiplex the movie with projectx which shows the speed of
> writing video and audio to the disk. It writes about 200MB with about
> 25MB/s then it halts for about 2-3 seconds and starts again writing
> data to the disk, after another 200MB it halts again and starts over
> again and so on. I also recognize the same behavior when i multiplex
> the video and audio together with mplex. What could cause this
> problems
What I/O scheduler are you using? Did you try to experiment with the
deadline or the cfq I/O schedulers?
If you have them enabled in your kernel config, read
Documentation/block/switching-sched.txt and see if things get better
after changing the I/O scheduler for your hard disk.
Of course, your problem might be caused by something else altogether.
--
gentoo-user@gentoo.org mailing list
next prev parent reply other threads:[~2007-02-06 20:58 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-06 20:31 [gentoo-user] Performance problem at writing big files and Multitasking Daniel Pielmeier
2007-02-06 20:50 ` Michael Schreckenbauer
2007-02-06 21:25 ` Daniel Pielmeier
2007-02-06 21:16 ` Etaoin Shrdlu [this message]
2007-02-06 21:28 ` Daniel Pielmeier
2007-02-08 10:42 ` Frédéric Grosshans
2007-02-08 18:34 ` Daniel Pielmeier
2007-02-08 19:12 ` Etaoin Shrdlu
2007-02-08 23:14 ` Iain Buchanan
2007-02-06 22:25 ` Daniel Pielmeier
2007-02-07 12:59 ` Daniel Pielmeier
2007-02-07 19:16 ` Tom Naujokas
[not found] <7LFgI-6qK-17@gated-at.bofh.it>
[not found] ` <7LFqt-6Eo-27@gated-at.bofh.it>
[not found] ` <7LUIK-4Qn-3@gated-at.bofh.it>
2007-02-07 16:00 ` Mike
2007-02-07 16:39 ` Daniel Pielmeier
2007-02-07 18:08 ` Benno Schulenberg
2007-02-07 21:39 ` Daniel Pielmeier
2007-02-10 11:49 ` Daniel Pielmeier
2007-02-26 16:28 ` Matthias Bethke
2007-02-27 7:49 ` Kellystewart00
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