From: Con Kolivas <kernel@kolivas.org>
To: linux kernel mailing list <linux-kernel@vger.kernel.org>
Cc: Dru <andru@treshna.com>
Subject: RE: PROBLEM: Preemptible kernel makes mpg123 skip a lot under 2.6.0-testing7 and very high load average under low usage.
Date: Wed, 15 Oct 2003 23:44:29 +1000 [thread overview]
Message-ID: <200310152344.29920.kernel@kolivas.org> (raw)
Hi.
I quote from your output:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
22953 andru 15 0 10100 5316 9464 S 3.7 0.6 2:02.39 mpg123
1067 root 5 -10 595m 58m 539m S 3.3 6.6 391:41.29 XFree86
1176 andru 15 0 47488 26m 13m S 1.0 3.0 11:52.32 gnome-terminal
25063 root 17 0 2004 1096 1792 R 0.7 0.1 0:00.03 top
The kernel is now tuned to give much more priority to reniced tasks and it is
not recommended to run your X server nice -10. This is the cause of your
problem as X is starving your audio application. Some distributions do this
by default to get around the limitations of the old cpu scheduler not being
able to make X smooth enough at nice 0. This hack/workaround is no longer
recommended for 2.6 kernels. You will find nice performance of X at nice 0
now and audio will not skip when the nice value of X is the same as your
audio application.
Con
next reply other threads:[~2003-10-15 13:39 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-15 13:44 Con Kolivas [this message]
2003-10-17 1:36 ` PROBLEM: Preemptible kernel makes mpg123 skip a lot under 2.6.0-testing7 and very high load average under low usage Dru
2003-11-06 23:02 ` Dru
-- strict thread matches above, loose matches on Subject: below --
2003-10-15 12:29 Dru
2003-10-15 16:58 ` Robert Love
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=200310152344.29920.kernel@kolivas.org \
--to=kernel@kolivas.org \
--cc=andru@treshna.com \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).