From: Ingo Molnar <mingo@elte.hu>
To: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Zhaolei <zhaolei@cn.fujitsu.com>,
Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>,
Steven Rostedt <rostedt@goodmis.org>,
linux-kernel@vger.kernel.org, fweisbec@gmail.com,
Li Zefan <lizf@cn.fujitsu.com>,
Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH RFC] softirq: fix ksoftirq starved
Date: Wed, 17 Jun 2009 16:53:33 +0200 [thread overview]
Message-ID: <20090617145333.GD6846@elte.hu> (raw)
In-Reply-To: <4A32251C.8060001@cn.fujitsu.com>
* Lai Jiangshan <laijs@cn.fujitsu.com> wrote:
> --- a/kernel/sched.c
> +++ b/kernel/sched.c
> @@ -5307,6 +5307,7 @@ need_resched:
> release_kernel_lock(prev);
> need_resched_nonpreemptible:
>
> + schedule_softirq_check();
> schedule_debug(prev);
hm, this slows down the scheduler fast-path ...
Ingo
next prev parent reply other threads:[~2009-06-17 14:54 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-05 6:41 [PATCH v3] ftrace: add a tracepoint for __raise_softirq_irqoff() Xiao Guangrong
2009-05-05 6:53 ` Li Zefan
2009-05-07 0:57 ` Xiao Guangrong
2009-05-05 16:16 ` Mathieu Desnoyers
2009-05-11 7:28 ` Xiao Guangrong
2009-05-11 13:40 ` Mathieu Desnoyers
2009-05-11 14:09 ` Steven Rostedt
2009-05-11 14:27 ` Mathieu Desnoyers
2009-05-11 14:53 ` Steven Rostedt
2009-05-11 15:13 ` Mathieu Desnoyers
2009-05-12 9:50 ` Xiao Guangrong
2009-05-12 13:14 ` Mathieu Desnoyers
2009-05-14 10:53 ` [PATCH v4] " Xiao Guangrong
2009-05-14 12:40 ` Mathieu Desnoyers
2009-05-14 13:26 ` Steven Rostedt
2009-05-14 13:51 ` Mathieu Desnoyers
2009-05-15 1:53 ` Xiao Guangrong
2009-05-18 3:06 ` Zhaolei
2009-05-19 8:24 ` Ingo Molnar
2009-05-21 5:39 ` Zhaolei
2009-06-12 2:36 ` Lai Jiangshan
2009-06-12 9:51 ` [PATCH RFC] softirq: fix ksoftirq starved Lai Jiangshan
2009-06-17 14:53 ` Ingo Molnar [this message]
2009-06-18 3:19 ` Lai Jiangshan
2009-06-18 8:22 ` Peter Zijlstra
2009-06-20 15:48 ` Ingo Molnar
2009-07-03 9:35 ` [PATCH v4] ftrace: add a tracepoint for __raise_softirq_irqoff() Lai Jiangshan
2009-07-03 9:44 ` Ingo Molnar
2009-07-09 12:58 ` Lai Jiangshan
2009-05-14 2:44 ` [PATCH v3] " Lai Jiangshan
2009-05-14 3:50 ` Mathieu Desnoyers
2009-05-14 6:06 ` Lai Jiangshan
2009-05-14 8:05 ` Xiao Guangrong
2009-05-14 12:36 ` Mathieu Desnoyers
2009-05-14 13:25 ` Steven Rostedt
2009-05-06 13:49 ` Jason Baron
2009-05-07 1:16 ` Xiao Guangrong
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