Re: [PATCH] perf lock: clean the options for perf record

From: Hitoshi Mitake
Date: Fri Mar 04 2011 - 04:41:46 EST


On 03/01/11 23:55, Frederic Weisbecker wrote:
On Sat, Feb 26, 2011 at 02:10:30AM +0900, Hitoshi Mitake wrote:
It seems that I was too preprocessed with the method and
forgot the purpose...

Maybe the things like simple lockstat visualizer or
special diff between two lockstat snapshots are
useful for the first looking at big picture.
I feel that they have worth to write and test.

Indeed they sound like good ideas. Being able to do a diff
on locks profiles would be useful to compare two changes on
the kernel.


BTW, how do you think about the idea of exporting data in
python (or other neutral) expression from procfs? I feel it is a
good idea. Communicating with unified format between user space and
kernel space will reduce lots of parsing overhead. Is this too
aggressive or insane?
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