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SubjectRe: [RFC][-mm] [1/2] Simple stats for cpu resource controller
Date
On Sunday 06 April 2008 12:26:16 am Dhaval Giani wrote:
> On Sat, Apr 05, 2008 at 11:39:46PM +0530, Balaji Rao wrote:
> > This patch implements some trivial statistics for the CPU controller.
> >
> > As per our current requirements, we have decided to keep the stats tick
based as opposed to using CFS precise accounting.
> >
>
> A quick question? Why? Everywhere in the CFS we use precise accounting,
> (even within the CPU controller). Doesn't make sense using ticks here
> then.
>
Using CFS precise accounting has a cost (see task_utime and task_stime).
Currently our requirements don't call for precise statistics.

--
regards,
Balaji Rao
Dept. of Mechanical Engineering,
National Institute of Technology Karnataka, India


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