Re: [RFC PATCH] cpuacct: per-cgroup utime/stime statistics - v1

From: Bharata B Rao
Date: Thu Mar 12 2009 - 00:29:39 EST


On Wed, Mar 11, 2009 at 09:04:34PM +0530, Balbir Singh wrote:
> * KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> [2009-03-11 09:38:12]:
>
> > BTW, I'm not sure but don't we need special handling if
> > CONFIG_VIRT_CPU_ACCOUNTING=y ?
>
> Good point. Bharata, with CONFIG_VIRT_CPU_ACCOUNTING, utime and stime
> is accounted for within the architecture.

True, but as I replied to Kamezawa in the other thread, these
architectures are still dependent on generic implementations of
account_{system,user}_time() which feed to per-process and system-wide
accounting. And this is where we have hooks for per-cgroup accounting.
So I don't see why we need to handle these archs specially. Do I miss
something ?

Regards,
Bharata.
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