On Tue, May 09, 2017 at 03:09:33PM +0100, Tvrtko Ursulin wrote:
> From: Tvrtko Ursulin <[email protected]>
> 
> By popular customer demand here is the prototype for cheap engine utilization
> tracking.

customer and debugfs?

> It uses static branches so in the default off case it really should be cheap.

Not as cheap (for the off case) as simply sampling RING_HEAD/RING_TAIL
which looks to be the same level of detail. I wrapped all this up in a
perf interface once up a time...
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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