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Date: Wed, 9 Jan 2008 17:58:47 +0530
From: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>, discuss@LessWatts.org,
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       Chanda Sethia <chanda.sethia@in.ibm.com>
Subject: Re: Analysis of sched_mc_power_savings
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* Ingo Molnar <mingo@elte.hu> [2008-01-09 12:35:07]:

> 
> * Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> wrote:
> 
> > How do we take this technique to the next step where we can 
> > consolidate short running jobs as well?  Did you face any difficulty 
> > biasing the CPU for short running jobs?
> 
> are you sure your measurement tasks do not impact the measurement 
> workload? If you use something like 'top' then try running it reniced to 
> +19. (or perhaps even bound to a particular CPU, say #3, to make its 
> impact isolated)

Hi Ingo,

I will watch this during the experiments.  I have been using klog
application to dump relayfs data.  I did run powertop and top as well,
I will bind them to certain CPUs and isolate their impact.

I believe the margin of error would be less since all the measurement
tasks sleep for long duration.

Thanks,
Vaidy