Re: [RFC] mm,tracing: improve current situation

From: Dave Hansen
Date: Thu Apr 03 2014 - 18:31:26 EST


On 04/03/2014 02:44 PM, Davidlohr Bueso wrote:
> Now, on a more general scenario, I basically would like to know, 1) is
> this actually useful... I'm hoping that, if in fact something like this
> gets merged, it won't just sit there. 2) What other general data would
> be useful for debugging purposes? I'm happy to collect feedback and send
> out something we can all benefit from.

One thing that would be nice, specifically for the VM, would be to turn
all of the things that touch the /proc/vmstat counters
(count_vm_event(), etc...) in to tracepoints.

I started on it once, but ran in to some header dependency hell and gave
up before I got anything useful.
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