Re: Notification when a task is created/exits

[KAMEZAWA Hiroyuki]

On Wed, 17 Feb 2010 08:46:51 +0530
"Leonidas ." <leonidas137@xxxxxxxxx> wrote:
\
> > Â2. implement cgroup subsystem
> > Â ÂAFAIK, in the latest kernel, cgroup subsystem can be implemented as module.
> > Â Âcgroup has fork/exit handler.
> > Â ÂAnd you can implement some useful controls for tasks you watch via
> > Â Âcgroup's control interface.
> >
> 
> This sounds close to what I have in mind, but unfortunately I dont
> have any idea what is cgroup
> subsystem. How to implement cgroup subsystem? Can you give pointers to
> some existing code
> or document? 
Documentation/cgroup/*.txt
Maybe cpuacct cgroup in kernel/sche.c or device cgroup in security/device_cgroup.c
is portable size, but they are not module.
block/blk-cgroup is module and maybe in readable size.

> Also, using this mechanism can we monitor each thread created in
> user space? I.e. it is only a fork handler or even a
> pthread_create/clone can be tracked this way.
> 
please read documents. I think you can.

Thanks,
-Kame

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