From: Anthony Liguori <aliguori@us.ibm.com>
To: Jared Rhine <jared@wordzoo.com>
Cc: xen-devel@lists.sourceforge.net
Subject: Re: [PATCH] xenctld - a control channel multiplexing daemon
Date: Mon, 24 Jan 2005 13:11:12 -0600 [thread overview]
Message-ID: <1106593872.18665.27.camel@localhost> (raw)
In-Reply-To: <871xcag1f4.wl@badger.wordzoo.com>
On Mon, 2005-01-24 at 11:52, Jared Rhine wrote:
> Ronald> The issue is that, in any large scale cluster, if you have
> Ronald> enough processes running besides your application on the
> Ronald> nodes, then the act of scheduling those processes -- even
> Ronald> for select calls that return instantly
> Ronald> -- can derange the application performance.
This is why schedulers have priority. Just bump up the priority of your
desired app. Also, with the Linux O(1) scheduler, a process blocked on
I/O (at least, by my understanding) should have no impact on other
processes scheduling.
--
Anthony Liguori
Linux Technology Center (LTC) - IBM Austin
E-mail: aliguori@us.ibm.com
Phone: (512) 838-1208
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next prev parent reply other threads:[~2005-01-24 19:11 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-21 15:55 [PATCH] xenctld - a control channel multiplexing daemon Anthony Liguori
2005-01-21 16:39 ` Andrew Warfield
2005-01-21 17:19 ` Ronald G. Minnich
2005-01-21 19:59 ` Anthony Liguori
2005-01-21 20:44 ` Ronald G. Minnich
2005-01-21 21:14 ` Anthony Liguori
2005-01-21 20:54 ` Ronald G. Minnich
2005-01-21 21:28 ` Anthony Liguori
2005-01-21 21:37 ` Jared Rhine
2005-01-24 15:33 ` Ronald G. Minnich
2005-01-24 16:35 ` Anthony Liguori
2005-01-24 16:55 ` Jared Rhine
[not found] ` <Pine.LNX.4.58.0501240957520.12186@bluesteel.lanl.gov>
2005-01-24 17:52 ` Jared Rhine
2005-01-24 19:11 ` Anthony Liguori [this message]
2005-01-24 19:07 ` Anthony Liguori
2005-01-24 20:44 ` B.G. Bruce
2005-01-26 2:31 ` Jacob Gorm Hansen
2005-01-26 5:43 ` Anthony Liguori
2005-01-26 6:59 ` Jacob Gorm Hansen
2005-01-21 19:56 ` Anthony Liguori
2005-01-26 0:21 ` Michael Hohnbaum
2005-01-26 14:33 ` Andrew Warfield
2005-01-26 19:31 ` Anthony Liguori
2005-01-26 19:11 ` Andrew Warfield
2005-01-26 20:01 ` Anthony Liguori
2005-01-26 21:21 ` Daniel Stekloff
2005-01-26 22:28 ` Anthony Liguori
2005-01-26 21:57 ` Daniel Stekloff
2005-01-26 21:49 ` Michael Hohnbaum
2005-01-26 22:57 ` Anthony Liguori
2005-01-26 23:55 ` Michael Hohnbaum
2005-01-26 23:59 ` Daniel Stekloff
2005-01-27 7:05 ` Tobias Hunger
2005-01-27 14:19 ` Anthony Liguori
2005-01-27 18:05 ` Daniel Stekloff
2005-01-28 9:17 ` Steven Hand
2005-01-28 16:56 ` Daniel Stekloff
2005-01-27 0:13 ` Daniel Stekloff
2005-01-27 3:48 ` Daniel Stekloff
2005-01-26 23:36 ` Daniel Stekloff
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