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From: Peter Zijlstra <peterz@infradead.org>
To: Andy Lutomirski <luto@amacapital.net>
Cc: David Ahern <dsahern@gmail.com>, Ingo Molnar <mingo@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	tglx@linutronix.de
Subject: Re: deadlock in scheduler enabling HRTICK feature
Date: Thu, 27 Jun 2013 22:37:33 +0200	[thread overview]
Message-ID: <20130627203733.GC29209@dyad.programming.kicks-ass.net> (raw)
In-Reply-To: <51CC8FEC.8030605@mit.edu>

On Thu, Jun 27, 2013 at 12:18:04PM -0700, Andy Lutomirski wrote:
> Supposedly, on really new x86 systems, the TSC deadline timer is so fast
> to reprogram that this isn't worth it.

>From what I've heard its not all that fast. I should play with it sometime, my
SNB desktop actually has this thing.

  reply	other threads:[~2013-06-27 20:38 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-25 21:05 deadlock in scheduler enabling HRTICK feature David Ahern
2013-06-25 21:17 ` Peter Zijlstra
2013-06-25 21:20   ` David Ahern
2013-06-26  7:05     ` Peter Zijlstra
2013-06-26 16:46       ` David Ahern
2013-06-27 10:43         ` Peter Zijlstra
2013-06-27 10:53           ` Peter Zijlstra
2013-06-27 12:28             ` Mike Galbraith
2013-06-27 13:06             ` Ingo Molnar
2013-06-27 19:18             ` Andy Lutomirski
2013-06-27 20:37               ` Peter Zijlstra [this message]
2013-06-27 22:28           ` David Ahern
2013-06-28  9:00             ` Ingo Molnar
2013-06-28  9:18               ` Peter Zijlstra
2013-07-12 13:29                 ` [tip:sched/core] sched: Fix HRTICK tip-bot for Peter Zijlstra
2013-06-28  9:09             ` deadlock in scheduler enabling HRTICK feature Peter Zijlstra
2013-06-28 17:28               ` David Ahern

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