Re: [PATCH v2 3/5] drm/i915: Add a batch pool debugfs file

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On Wed, Jul 09, 2014 at 08:56:31AM -0700, Volkin, Bradley D wrote:
> On Wed, Jul 09, 2014 at 12:36:38AM -0700, Chris Wilson wrote:
> > On Tue, Jul 08, 2014 at 03:26:38PM -0700, bradley.d.volkin@xxxxxxxxx wrote:
> > > From: Brad Volkin <bradley.d.volkin@xxxxxxxxx>
> > > 
> > > It provides some useful information about the buffers in
> > > the global command parser batch pool.
> > > 
> > > v2: rebase on global pool instead of per-ring pools
> > 
> > Include the counts in i915_gem_objects as well.
> > 
> > The issue is that the kernel allocated objects will perturb the number
> > of objects allocated (possibly substantially) so having the kernel
> > listed for its consumption will help track usage.
> 
> Ok, so maybe reuse per_file_stats() and add another line like those but
> for the batch pool?

Yes, something along those lines so the kernel batch pool just appears
like another client. An exercise for another day would be to add a line
for the other fixed entries, getting context objects accounted
correctly, etc.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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