Re: [RFC PATCH 1/2] New cgroup subsystem API (->initialize())

[KAMEZAWA Hiroyuki]

On Thu, 26 Feb 2009 16:11:36 +0800
Li Zefan <lizf@xxxxxxxxxxxxxx> wrote:

> Bharata B Rao wrote:
> > On Thu, Feb 26, 2009 at 10:55:54AM +0800, Li Zefan wrote:
> >> Bharata B Rao wrote:
> >>> From: Balaji Rao <balajirrao@xxxxxxxxx>
> > Another thing that could be done is to enhance already existing
> > cpuacct controller to do stime/utime accouting also. cpuacct controller
> > exists precisely for doing per-cgroup accounting and is there any reason
> > why these stats shouldn't be part of cpuacct controller. If we do this,
> > users would be forced to use cpu controller and cpuacct controller
> > together. Is that a problem ?
> > 
> 
> I wondered why these stats is part of cpu subsystem but not cpuacct.
> And I don't see any problem to use these 2 subsystems together. Actually
> this is one of the advantage of cgroup.
> 
IMHO, cpuacct subsystem should count utime/stime.
current statistics is not so useful.

BTW, I wonde why cpuacct subsys walks up to root at charging...
I think we can gather all subtree information at read...

Thanks
-Kame

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