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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-18 17:17:15 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-18 22:37:00 +0100 |
| commit | efdfd91f9b234638705d79a2b2f0a6ac8a5f99e8 (patch) | |
| tree | 8544bd0aab615c71850514d0d61d59a229b8fd4c /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | d6a4ead7a38666b9acdb098012a178c4c4950eca (diff) | |
drm/i915/cmdparser: Compare against the previous command descriptor
On the blitter (and in test code), we see long sequences of repeated
commands, e.g. XY_PIXEL_BLT, XY_SCANLINE_BLT, or XY_SRC_COPY. For these,
we can skip the hashtable lookup by remembering the previous command
descriptor and doing a straightforward compare of the command header.
The corollary is that we need to do one extra comparison before lookup
up new commands.
v2: Less magic mask (ok, it is still magic, but now you cannot see!)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160818161718.27187-36-chris@chris-wilson.co.uk
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions