Re: [PATCH] cgroup: add tracepoints to track cgroup events

[Andrea Righi]

On Thu, Aug 21, 2014 at 09:13:30AM -0500, Tejun Heo wrote:
> Hello,
> 
> On Wed, Aug 20, 2014 at 09:46:25PM -0600, Andrea Righi wrote:
> > This patch adds the following tracepoints:
> >  o trace_cgroup_create       when a new cgroup is created
> >  o trace_cgroup_destroy      when a cgroup is removed
> >  o trace_cgroup_task_migrate when a task/thread is moved from a cgroup to another
> > 
> > The purpose of these tracepoints is to identify and help cgroup "managers" to
> > diagnose problems and detect when they are doing an excessive amount of work.
> 
> Using TPs for this looks like a really roundabout way of doing this
> when the whole interface is based on filesystem.  Extending
> kernfs_notity to support directory events seems like a better way to
> do this.
> 
> Thanks.
> 
> -- 
> tejun

Agreed. Thanks for the suggestion, Tejun.

-Andrea
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/