From: Mike Galbraith <efault@gmx.de>
To: Anirban Sinha <ASinha@zeugmasystems.com>
Cc: Lucas De Marchi <lucas.de.marchi@gmail.com>,
linux-kernel@vger.kernel.org,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Ingo Molnar <mingo@elte.hu>,
ani@anirban.org
Subject: RE: question on sched-rt group allocation cap: sched_rt_runtime_us
Date: Sun, 06 Sep 2009 17:09:50 +0200 [thread overview]
Message-ID: <1252249790.13541.28.camel@marge.simson.net> (raw)
In-Reply-To: <DDFD17CC94A9BD49A82147DDF7D545C54DC482@exchange.ZeugmaSystems.local>
On Sun, 2009-09-06 at 07:53 -0700, Anirban Sinha wrote:
>
>
>
> > Seems kjournald can end up depending on kblockd/3, which ain't
> > going anywhere with that 100% RT hog in the way,
>
> I think in the past AKPM's response to this has been "just don't do
> it", i.e, don't hog the CPU with an RT thread.
Oh yeah, sure. Best to run RT oinkers on isolated cpus. It just
surprised me that the 100% compute RT cpu became involved in IO.
-Mike
next prev parent reply other threads:[~2009-09-06 15:09 UTC|newest]
Thread overview: 84+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <dgRNo-3uc-5@gated-at.bofh.it>
[not found] ` <dhb9j-1hp-5@gated-at.bofh.it>
[not found] ` <dhcf5-263-13@gated-at.bofh.it>
2009-09-06 2:32 ` question on sched-rt group allocation cap: sched_rt_runtime_us Ani
2009-09-06 6:32 ` Mike Galbraith
2009-09-06 10:18 ` Mike Galbraith
[not found] ` <DDFD17CC94A9BD49A82147DDF7D545C54DC482@exchange.ZeugmaSystems.local>
2009-09-06 15:09 ` Mike Galbraith [this message]
2009-09-07 0:41 ` Anirban Sinha
[not found] ` <1252311463.7586.26.camel@marge.simson.net>
2009-09-07 11:06 ` [rfc] lru_add_drain_all() vs isolation Peter Zijlstra
2009-09-07 11:06 ` Peter Zijlstra
2009-09-07 13:35 ` Oleg Nesterov
2009-09-07 13:35 ` Oleg Nesterov
2009-09-07 13:53 ` Peter Zijlstra
2009-09-07 13:53 ` Peter Zijlstra
2009-09-07 14:18 ` Oleg Nesterov
2009-09-07 14:18 ` Oleg Nesterov
2009-09-07 14:25 ` Peter Zijlstra
2009-09-07 14:25 ` Peter Zijlstra
2009-09-07 23:56 ` KOSAKI Motohiro
2009-09-07 23:56 ` KOSAKI Motohiro
2009-09-08 8:20 ` Peter Zijlstra
2009-09-08 8:20 ` Peter Zijlstra
2009-09-08 10:06 ` KOSAKI Motohiro
2009-09-08 10:06 ` KOSAKI Motohiro
2009-09-08 10:20 ` Peter Zijlstra
2009-09-08 10:20 ` Peter Zijlstra
2009-09-08 11:41 ` KOSAKI Motohiro
2009-09-08 11:41 ` KOSAKI Motohiro
2009-09-08 12:05 ` Peter Zijlstra
2009-09-08 12:05 ` Peter Zijlstra
2009-09-08 14:03 ` Christoph Lameter
2009-09-08 14:03 ` Christoph Lameter
2009-09-08 14:20 ` Peter Zijlstra
2009-09-08 14:20 ` Peter Zijlstra
2009-09-08 15:22 ` Christoph Lameter
2009-09-08 15:22 ` Christoph Lameter
2009-09-08 15:27 ` Peter Zijlstra
2009-09-08 15:27 ` Peter Zijlstra
2009-09-08 15:32 ` Christoph Lameter
2009-09-08 15:32 ` Christoph Lameter
2009-09-09 4:27 ` KOSAKI Motohiro
2009-09-09 4:27 ` KOSAKI Motohiro
2009-09-09 14:08 ` Christoph Lameter
2009-09-09 14:08 ` Christoph Lameter
2009-09-09 23:43 ` KOSAKI Motohiro
2009-09-09 23:43 ` KOSAKI Motohiro
2009-09-10 18:03 ` Christoph Lameter
2009-09-10 18:03 ` Christoph Lameter
2009-09-09 15:39 ` Minchan Kim
2009-09-09 15:39 ` Minchan Kim
2009-09-09 16:18 ` Lee Schermerhorn
2009-09-09 16:18 ` Lee Schermerhorn
2009-09-09 16:46 ` Minchan Kim
2009-09-09 16:46 ` Minchan Kim
2009-09-09 23:58 ` KOSAKI Motohiro
2009-09-09 23:58 ` KOSAKI Motohiro
2009-09-10 1:00 ` Minchan Kim
2009-09-10 1:00 ` Minchan Kim
2009-09-10 1:15 ` KOSAKI Motohiro
2009-09-10 1:15 ` KOSAKI Motohiro
2009-09-10 1:23 ` Minchan Kim
2009-09-10 1:23 ` Minchan Kim
2009-09-09 2:06 ` KOSAKI Motohiro
2009-09-09 2:06 ` KOSAKI Motohiro
[not found] ` <DDFD17CC94A9BD49A82147DDF7D545C54DC483@exchange.ZeugmaSystems.local>
[not found] ` <DDFD17CC94A9BD49A82147DDF7D545C54DC485@exchange.ZeugmaSystems.local>
2009-09-07 0:28 ` question on sched-rt group allocation cap: sched_rt_runtime_us Anirban Sinha
2009-09-07 6:54 ` Mike Galbraith
[not found] ` <DDFD17CC94A9BD49A82147DDF7D545C54DC489@exchange.ZeugmaSystems.local>
2009-09-08 7:10 ` Anirban Sinha
2009-09-08 9:26 ` Mike Galbraith
2009-09-07 7:59 ` Peter Zijlstra
2009-09-07 8:24 ` Mike Galbraith
[not found] ` <DDFD17CC94A9BD49A82147DDF7D545C54DC487@exchange.ZeugmaSystems.local>
2009-09-08 7:08 ` Anirban Sinha
2009-09-08 8:42 ` Peter Zijlstra
2009-09-08 14:41 ` Anirban Sinha
[not found] ` <DDFD17CC94A9BD49A82147DDF7D545C54DC48B@exchange.ZeugmaSystems.local>
2009-09-08 17:41 ` Anirban Sinha
2009-09-08 19:06 ` Mike Galbraith
2009-09-08 19:34 ` Anirban Sinha
2009-09-09 4:10 ` Mike Galbraith
2009-09-05 17:13 Anirban Sinha
[not found] <Acotv57vW6nkRxQOQLuBf8W5yfJIlwAAtMAw>
2009-09-05 0:55 ` Anirban Sinha
2009-09-05 17:43 ` Lucas De Marchi
2009-09-05 20:40 ` Fabio Checconi
2009-09-05 22:40 ` Lucas De Marchi
[not found] ` <DDFD17CC94A9BD49A82147DDF7D545C54DC481@exchange.ZeugmaSystems.local>
2009-09-06 0:47 ` Anirban Sinha
2009-09-06 13:21 ` Fabio Checconi
[not found] ` <DDFD17CC94A9BD49A82147DDF7D545C54DC484@exchange.ZeugmaSystems.local>
2009-09-07 0:26 ` Anirban Sinha
2009-09-08 17:26 ` Anirban Sinha
2009-09-08 21:37 ` Anirban Sinha
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