From: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
To: Michael Wang <wangyun@linux.vnet.ibm.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
Ingo Molnar <mingo@elte.hu>, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v5] sched: Avoid unnecessary work in reweight_entity
Date: Mon, 27 Feb 2012 12:14:23 +0530 [thread overview]
Message-ID: <20120227064423.GC28139@linux.vnet.ibm.com> (raw)
In-Reply-To: <4F4B2105.4080306@linux.vnet.ibm.com>
* Michael Wang <wangyun@linux.vnet.ibm.com> [2012-02-27 14:21:57]:
> I think I really need some study on cgroup first...I've done some totally useless
> test :( ,
Yes!
> but still confused that why sys time reduced?
Could be just noise ..
> And I got a server with Redhat now, so I will do:
>
> 1. cgcreate -g cpu:/subcg1
> 2. echo $$ > /cgroup/cpu/subcg1/tasks
> 3. open another shell
> 4. do 1~3 multi times, plan to get 7 cpu cgroup with 7 shell attached to each one.
> 5. run kernbench in each shell
>
> Please tell me if I missed some thing :)
That should stress the cgroup-specific paths of scheduler!
-vatsa
next prev parent reply other threads:[~2012-02-27 6:44 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-06 9:37 [PATCH] sched: Avoid unnecessary work in reweight_entity Michael Wang
2012-02-06 10:31 ` Michael Wang
2012-02-07 2:18 ` Michael Wang
2012-02-07 2:36 ` [PATCH v2] " Michael Wang
2012-02-08 2:10 ` [PATCH v3] sched: " Michael Wang
2012-02-16 14:14 ` [PATCH v4] " Michael Wang
2012-02-16 14:29 ` Peter Zijlstra
2012-02-17 2:28 ` Michael Wang
2012-02-17 6:03 ` [PATCH v5] " Michael Wang
2012-02-18 1:43 ` Michael Wang
2012-02-20 13:08 ` Peter Zijlstra
2012-02-23 10:40 ` Michael Wang
2012-02-24 2:08 ` Michael Wang
2012-02-25 13:56 ` Michael Wang
2012-02-27 4:12 ` Srivatsa Vaddagiri
2012-02-27 5:07 ` Michael Wang
2012-02-27 5:10 ` Srivatsa Vaddagiri
2012-02-27 6:21 ` Michael Wang
2012-02-27 6:44 ` Srivatsa Vaddagiri [this message]
2012-02-16 14:32 ` [PATCH v4] " Michael Wang
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