From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
RT <linux-rt-users@vger.kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
Gregory Haskins <ghaskins@novell.com>
Subject: Re: [patch 6/8] pull RT tasks
Date: Fri, 19 Oct 2007 21:24:53 +0200 [thread overview]
Message-ID: <1192821893.9471.17.camel@lappy> (raw)
In-Reply-To: <20071019184336.983272715@goodmis.org>
On Fri, 2007-10-19 at 14:43 -0400, Steven Rostedt wrote:
> plain text document attachment (rt-balance-pull-tasks.patch)
> +static int pull_rt_task(struct rq *this_rq)
> +{
> + struct task_struct *next;
> + struct task_struct *p;
> + struct rq *src_rq;
> + int this_cpu = this_rq->cpu;
> + int cpu;
> + int ret = 0;
> +
> + assert_spin_locked(&this_rq->lock);
> +
> + if (likely(!atomic_read(&rt_overload)))
> + return 0;
This seems to be the only usage of rt_overload. I'm not sure its worth
keeping it around for this.
> + next = pick_next_task_rt(this_rq);
> +
> + for_each_cpu_mask(cpu, rto_cpumask) {
> + if (this_cpu == cpu)
> + continue;
...
> + }
> +
> + return ret;
> +}
next prev parent reply other threads:[~2007-10-19 19:26 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-19 18:42 [patch 0/8] New RT Task Balancing Steven Rostedt
2007-10-19 18:42 ` [patch 1/8] Add rt_nr_running accounting Steven Rostedt
2007-10-20 16:45 ` Dmitry Adamushko
2007-10-21 2:13 ` Steven Rostedt
2007-10-19 18:42 ` [patch 2/8] track highest prio queued on runqueue Steven Rostedt
2007-10-19 19:19 ` Steven Rostedt
2007-10-19 19:45 ` Gregory Haskins
2007-10-19 19:57 ` Steven Rostedt
2007-10-20 18:14 ` Dmitry Adamushko
2007-10-21 2:19 ` Steven Rostedt
2007-10-19 18:42 ` [patch 3/8] push RT tasks Steven Rostedt
2007-10-19 18:42 ` [patch 4/8] RT overloaded runqueues accounting Steven Rostedt
2007-10-19 18:42 ` [patch 5/8] Move prototypes together Steven Rostedt
2007-10-19 18:43 ` [patch 6/8] pull RT tasks Steven Rostedt
2007-10-19 19:24 ` Peter Zijlstra [this message]
2007-10-19 19:35 ` Peter Zijlstra
2007-10-19 19:43 ` Steven Rostedt
2007-10-21 9:35 ` Dmitry Adamushko
2007-10-22 13:55 ` Steven Rostedt
2007-10-21 11:59 ` Dmitry Adamushko
2007-10-22 14:05 ` Steven Rostedt
2007-10-22 22:34 ` Dmitry Adamushko
2007-10-23 1:16 ` Steven Rostedt
2007-10-19 18:43 ` [patch 7/8] wake up balance RT Steven Rostedt
2007-10-19 18:43 ` [patch 8/8] disable CFS RT load balancing Steven Rostedt
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