[Intel-gfx] [PATCH] drm/i915: Track clients and print their object usage in debugfs

[Ben Widawsky]

On Tue, Jun 04, 2013 at 11:49:08PM +0100, Chris Wilson wrote:
> By stashing a pointer of who opened the device and keeping a list of
> open fd, we can then walk each client and inspect how many objects they
> have open. For example,
> 
> i915_gem_objects:
> 1102 objects, 613646336 bytes
> 663 [662] objects, 468783104 [468750336] bytes in gtt
>   37 [37] active objects, 46874624 [46874624] bytes
>   626 [625] inactive objects, 421908480 [421875712] bytes
> 282 unbound objects, 6512640 bytes
> 85 purgeable objects, 6787072 bytes
> 28 pinned mappable objects, 3686400 bytes
> 40 fault mappable objects, 27783168 bytes
> 2145386496 [536870912] gtt total
> 
> Xorg: 43 objects, 32243712 bytes (10223616 active, 16683008 inactive, 4096 unbound)
> gnome-shell: 30 objects, 28381184 bytes (0 active, 28336128 inactive, 0 unbound)
> xonotic-linux64: 1032 objects, 569933824 bytes (46874624 active, 383545344 inactive, 6508544 unbound)
> 
> v2: Use existing drm->filelist as pointed out by Ben.
> v3: Not even stashing the task_struct is required as Ben pointed out
>     drm_file->pid.
> 
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Reviewed-by: Ben Widawsky <ben at bwidawsk.net>
- 
Ben Widawsky, Intel Open Source Technology Center