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From: Yuyang Du <yuyang.du@intel.com>
To: Mike Galbraith <umgwanakikbuti@gmail.com>
Cc: mingo@redhat.com, peterz@infradead.org,
	linux-kernel@vger.kernel.org, pjt@google.com, bsegall@google.com,
	arjan.van.de.ven@intel.com, len.brown@intel.com,
	rafael.j.wysocki@intel.com, alan.cox@intel.com,
	mark.gross@intel.com, fengguang.wu@intel.com
Subject: Re: [PATCH 0/2 v4] sched: Rewrite per entity runnable load average tracking
Date: Mon, 28 Jul 2014 08:01:15 +0800	[thread overview]
Message-ID: <20140728000115.GB23367@intel.com> (raw)
In-Reply-To: <1406533758.5133.238.camel@marge.simpson.net>

On Mon, Jul 28, 2014 at 09:49:18AM +0200, Mike Galbraith wrote:
> On Mon, 2014-07-28 at 03:34 +0800, Yuyang Du wrote: 
> > Thanks a lot, Mike.
> > 
> > Ben asked for this test, but actually I don't know how to get pipe-test, still
> > not even after google it.
> 
> You could write it trivially, it's just pipe ping-pong.  I can send you
> a copy of the one I use if you like.  Ingo wrote it way back in the dark
> ages, I use it to watch out for fastpath lard accumulation.

Yes, please, drop me a copy.

> > So the result is flat compared to before or a pass?
> 
> Yeah, my little box said it was a deep cgroup price noop, but a modest
> win for root.  I love minus signs, they work great, though sometimes in
> highly mysterious ways :)
> 

Minus sign is great, and I hope this patchset is not mysterious, :)

Thanks,
Yuyang

  reply	other threads:[~2014-07-28  8:03 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-17 23:26 [PATCH 0/2 v4] sched: Rewrite per entity runnable load average tracking Yuyang Du
2014-07-17 23:26 ` [PATCH 1/2 v4] sched: Remove update_rq_runnable_avg Yuyang Du
2014-07-17 23:26 ` [PATCH 2/2 v4] sched: Rewrite per entity runnable load average tracking Yuyang Du
2014-07-18  9:43   ` Vincent Guittot
2014-07-27 17:36     ` Yuyang Du
2014-07-29  9:12       ` Vincent Guittot
2014-07-29  1:43         ` Yuyang Du
2014-07-29 13:17           ` Vincent Guittot
2014-07-29 22:27             ` Yuyang Du
2014-07-30  8:30               ` Peter Zijlstra
2014-07-30  0:40                 ` Yuyang Du
2014-07-29  9:39         ` Peter Zijlstra
2014-07-29  1:53           ` Yuyang Du
2014-07-29 13:35             ` Peter Zijlstra
2014-07-29 15:55               ` Peter Zijlstra
2014-07-29 23:08               ` Yuyang Du
2014-07-31  9:40             ` Vincent Guittot
2014-07-31  9:56             ` [PATCH 2/2 v4] sched: Rewrite per entity runnable load average Vincent Guittot
2014-07-31 19:16               ` Yuyang Du
2014-08-01  9:28                 ` Vincent Guittot
2014-07-28 10:48   ` [PATCH 2/2 v4] sched: Rewrite per entity runnable load average tracking Peter Zijlstra
2014-07-29  0:56     ` Yuyang Du
2014-07-29 13:15       ` Peter Zijlstra
2014-07-28 11:39   ` Peter Zijlstra
2014-07-29  1:09     ` Yuyang Du
2014-07-29 13:19       ` Peter Zijlstra
2014-07-28 12:01   ` Peter Zijlstra
2014-07-28 13:51   ` Peter Zijlstra
2014-07-28 16:58     ` bsegall
2014-07-28 17:19       ` Peter Zijlstra
2014-07-29  1:13         ` Yuyang Du
2014-07-18 15:39 ` [PATCH 0/2 " Morten Rasmussen
2014-07-27 19:02   ` Yuyang Du
2014-07-28 10:38     ` Peter Zijlstra
2014-07-29  1:17       ` Yuyang Du
2014-07-29 13:06         ` Peter Zijlstra
2014-07-30 10:13     ` Morten Rasmussen
2014-07-30 10:21       ` Peter Zijlstra
2014-07-30 10:57         ` Morten Rasmussen
2014-07-30 19:17       ` Yuyang Du
2014-07-31  8:54         ` Morten Rasmussen
2014-07-31  2:15           ` Yuyang Du
2014-07-20  5:46 ` Mike Galbraith
2014-07-27 19:34   ` Yuyang Du
2014-07-28  7:49     ` Mike Galbraith
2014-07-28  0:01       ` Yuyang Du [this message]
2014-07-28  8:55     ` Peter Zijlstra

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