From: Michael Wang <wangyun@linux.vnet.ibm.com>
To: Davidlohr Bueso <davidlohr.bueso@hp.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Mike Galbraith <efault@gmx.de>,
LKML <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@kernel.org>, Alex Shi <alex.shi@intel.com>,
Namhyung Kim <namhyung@kernel.org>, Paul Turner <pjt@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
"Nikunj A. Dadhania" <nikunj@linux.vnet.ibm.com>,
Ram Pai <linuxram@us.ibm.com>
Subject: Re: [PATCH] sched: smart wake-affine
Date: Tue, 09 Jul 2013 10:30:44 +0800 [thread overview]
Message-ID: <51DB75D4.6050302@linux.vnet.ibm.com> (raw)
In-Reply-To: <1373309998.1744.3.camel@buesod1.americas.hpqcorp.net>
Hi, Davidlohr
Thanks for the testing :)
On 07/09/2013 02:59 AM, Davidlohr Bueso wrote:
[snip]
>>
>> OK, I'll apply the patches, we'll see what happens. If there significant
>> fallout we'll immediately have more information anyway ;-)
>
> So I gave the v2 a spin on my aim7 benchmark on an 80-core 8 socket
> DL980. Not much changed, most numbers are in the noise range, however,
> with HT off, the high_systime workload suffered in throughput with this
> patch with higher concurrency (after 600 users). Image attached.
To make sure I'm not on the wrong way... HT here means hyperthreading,
correct?
I have some questions like:
1. how do you disable the hyperthreading? by manual or some other way?
2. is the 3.10-rc5 in image also disabled the hyperthreading?
3. is the v3 patch set show the same issue?
Regards,
Michael Wang
>
> Thanks,
> Davidlohr
>
next prev parent reply other threads:[~2013-07-09 2:30 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-28 5:05 [RFC PATCH] sched: smart wake-affine Michael Wang
2013-06-03 2:28 ` Michael Wang
2013-06-03 3:09 ` Mike Galbraith
2013-06-03 3:26 ` Michael Wang
2013-06-03 3:53 ` Mike Galbraith
2013-06-03 4:52 ` Michael Wang
2013-06-03 5:22 ` Mike Galbraith
2013-06-03 5:50 ` Michael Wang
2013-06-03 6:05 ` Mike Galbraith
2013-06-03 6:31 ` Michael Wang
2013-06-13 3:09 ` Michael Wang
2013-07-02 4:43 ` [PATCH] " Michael Wang
2013-07-02 5:38 ` Mike Galbraith
2013-07-02 5:50 ` Michael Wang
2013-07-02 5:54 ` Mike Galbraith
2013-07-02 6:17 ` Michael Wang
2013-07-02 6:29 ` Mike Galbraith
2013-07-02 6:45 ` Michael Wang
2013-07-02 8:52 ` Peter Zijlstra
2013-07-02 9:35 ` Michael Wang
2013-07-02 9:44 ` Michael Wang
2013-07-04 9:13 ` Peter Zijlstra
2013-07-04 9:38 ` Michael Wang
2013-07-04 10:33 ` Mike Galbraith
2013-07-05 2:47 ` Michael Wang
2013-07-05 4:08 ` Mike Galbraith
2013-07-05 4:33 ` Michael Wang
2013-07-05 5:41 ` Mike Galbraith
2013-07-05 6:16 ` Michael Wang
2013-07-07 6:43 ` Mike Galbraith
2013-07-08 2:49 ` Michael Wang
2013-07-08 3:12 ` Mike Galbraith
2013-07-08 8:21 ` Peter Zijlstra
2013-07-08 8:49 ` Mike Galbraith
2013-07-08 9:08 ` Michael Wang
2013-07-08 8:58 ` Michael Wang
2013-07-08 18:59 ` Davidlohr Bueso
2013-07-09 2:30 ` Michael Wang [this message]
2013-07-09 2:36 ` Davidlohr Bueso
2013-07-09 2:52 ` Michael Wang
2013-07-15 5:13 ` Michael Wang
2013-07-15 5:57 ` Davidlohr Bueso
2013-07-15 6:01 ` Michael Wang
2013-07-18 2:15 ` Michael Wang
2013-07-03 6:10 ` [PATCH v2] " Michael Wang
2013-07-03 8:50 ` Peter Zijlstra
2013-07-03 9:11 ` Michael Wang
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