From: "Doug Smythies" <dsmythies@telus.net>
To: "'Mike Galbraith'" <umgwanakikbuti@gmail.com>
Cc: "'Peter Zijlstra'" <peterz@infradead.org>,
"'Rafael J. Wysocki'" <rafael.j.wysocki@intel.com>,
"'LKML'" <linux-kernel@vger.kernel.org>,
"'Linux PM list'" <linux-pm@vger.kernel.org>,
"'Rik van Riel'" <riel@redhat.com>,
"'Rafael J. Wysocki'" <rjw@rjwysocki.net>
Subject: RE: [regression] cross core scheduling frequency drop bisected to 0c313cb20732
Date: Fri, 8 Apr 2016 15:19:14 -0700 [thread overview]
Message-ID: <001101d191e4$b00602d0$10120870$@net> (raw)
In-Reply-To: <2428384.mEkP3EOpsR@vostro.rjw.lan>
On 2016.04.08 14:00 Rafael J. Wysocki wrote:
> On Friday, April 08, 2016 08:50:54 AM Mike Galbraith wrote:
>> On Fri, 2016-04-08 at 08:45 +0200, Peter Zijlstra wrote:
>>
>>> Cute, I thought you used governor=performance for your runs?
>>
>> I do, and those numbers are with it thus set.
> Well, this is a trade-off.
>
> 4.5 introduced a power regression here so this one goes back to the previous
> state of things.
Mike:
Could you send me, or point me to, the program "pipe-test"?
So far, I have only found one, but it is both old and not
the same program you are running (based on print statements).
I realize I might not be to recreate your problem scenario anyhow,
I just want to try.
... Doug
next prev parent reply other threads:[~2016-04-08 22:19 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-08 5:20 [regression] cross core scheduling frequency drop bisected to 0c313cb20732 Mike Galbraith
2016-04-08 6:45 ` Peter Zijlstra
2016-04-08 6:50 ` Mike Galbraith
2016-04-08 20:59 ` Rafael J. Wysocki
2016-04-08 22:19 ` Doug Smythies [this message]
2016-04-09 6:44 ` Mike Galbraith
2016-04-09 7:17 ` Doug Smythies
2016-04-09 7:27 ` Mike Galbraith
2016-04-09 11:08 ` Peter Zijlstra
2016-04-09 6:40 ` Mike Galbraith
2016-04-09 12:33 ` Rafael J. Wysocki
2016-04-09 15:10 ` Mike Galbraith
2016-04-09 16:39 ` Mike Galbraith
2016-04-10 3:44 ` Rafael J. Wysocki
2016-04-10 7:16 ` Doug Smythies
2016-04-10 9:35 ` Mike Galbraith
2016-04-10 14:54 ` Mike Galbraith
2016-04-09 11:07 ` Peter Zijlstra
2016-04-09 12:31 ` Rafael J. Wysocki
2016-04-10 15:39 ` Mike Galbraith
2016-04-10 20:24 ` Rik van Riel
2016-04-11 3:04 ` Mike Galbraith
2016-04-11 12:38 ` Rik van Riel
2016-04-11 13:21 ` Rafael J. Wysocki
2016-04-11 13:38 ` Rik van Riel
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