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

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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
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