linux-kernel - Re: [PATCH v8 0/4] sched: Rewrite runnable load and utilization average tracking

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Date:	Mon, 15 Jun 2015 18:38:56 +0800
From:	Boqun Feng <boqun.feng@...il.com>
To:	Yuyang Du <yuyang.du@...el.com>
Cc:	mingo@...nel.org, peterz@...radead.org,
	linux-kernel@...r.kernel.org, pjt@...gle.com, bsegall@...gle.com,
	morten.rasmussen@....com, vincent.guittot@...aro.org,
	dietmar.eggemann@....com, arjan.van.de.ven@...el.com,
	len.brown@...el.com, rafael.j.wysocki@...el.com,
	fengguang.wu@...el.com,
	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Subject: Re: [PATCH v8 0/4] sched: Rewrite runnable load and utilization
 average tracking

Hi Yuyang,

We have tested your V7 patchset as follow:

On Intel(R) Xeon(R) CPU X5690 (12 cores), run 12 stress and 6 dbench.
Results show that usages of some CPUs are less than 50% sometimes.

We would like to test your V8 patchset, but I can neither find it in a
lkml archive, nor in my lkml subscription. Would you please send me your
V8 patchset, if convenient? Or a public git tree works too!

Regards,
Boqun

On Tue, Jun 09, 2015 at 09:21:43AM +0800, Yuyang Du wrote:
> Ping ...
> 
> Plus some data tested by LKP:
> 
> To name a few host configurations:
> 
> host: brickland3
> model: Brickland Ivy Bridge-EX
> nr_cpu: 120
> memory: 512G
> 
> host: lkp-a03
> model: Atom
> memory: 8G
> 
> host: grantley
> model: Grantley Haswell-EP
> memory: 32G
> 
> host: ivb43
> model: Ivytown Ivy Bridge-EP
> nr_cpu: 48
> memory: 64G
> 
[snip]

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