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15 Commits

Author SHA1 Message Date
Chris Wilson
397cd4acd1 gem_gtt_speed: Add a test that caches the mmapping across iterations 
Repeat the memset streaming performance test on the same mapping so that
we can factor out the overhead of establishing the GTT/CPU mmaps.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
 2012-09-13 15:05:34 +01:00
Chris Wilson
f256ada3b6 gem_gtt_speed: Use a memset() to test streaming performance 
This make the reasonable assumption that the libc code for memset() can
saturate the memory bandwidth -- at any rate it should do better than
the copy.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
 2012-09-13 14:59:09 +01:00
Chris Wilson
77586dcdf7 test/gem_gtt_speed: Add a baseline test for the performance of a CPU mmap 
When looking at the pwrite/pread/wc performance, it is useful to judge
that against the performance of an ordinary CPU mmap.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
 2012-06-04 17:50:51 +01:00
Daniel Vetter
544e357851 tests/gtt_speed: try to outwit gcc 
It optimized away the read loops ;-)

Also fix up the size to not be 1/4th of the one we want for tiled
buffer tests.

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
 2012-05-10 20:25:33 +02:00
Daniel Vetter
527cad1618 lib/drmtest: extract gem_mmap 
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
 2012-01-10 18:41:46 +01:00
Daniel Vetter
7a6042e87e lib/drmtest: extract gem_create 
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
 2012-01-10 18:30:39 +01:00
Daniel Vetter
673e6b220a lib/drmtest: extract gem_set_domain and gem_sync 
gem_sync just does a gtt sync by using set_domain(GTT, GTT).

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
 2012-01-10 16:05:34 +01:00
Daniel Vetter
a7a80c2c2f tests: fixup new warnings 
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
 2012-01-10 15:50:20 +01:00
Daniel Vetter
bd5cf9a07d lib/drmtest: extract gem_read 
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
 2012-01-10 15:37:53 +01:00
Daniel Vetter
319638ba6d lib/drmtest: extract gem_write 
Astonishing how many different function signatures are possible for
something that simple.

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
 2012-01-10 15:31:11 +01:00
Daniel Vetter
5dd17d3f4b lib/drmtest: extract gem_close 
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
 2012-01-10 15:07:19 +01:00
Daniel Vetter
aa67b22e42 lib/drmtest: extract gem_set_tiling 
Way too much copy-pasting going on here.

Also fix a compiler warnings in gem_stress while fixup things up.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
 2012-01-10 14:59:58 +01:00
Daniel Vetter
2e88c4ce34 tests/gem_gtt_speed: Add modes that force that to the gtt domain 
No sane userspace doesn't upload data to the gpu without actually
using it there ...

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
 2011-12-01 21:42:23 +01:00
Chris Wilson
f40d54e132 gem_gtt_speed: Add option for variable buffer size 2011-07-08 14:03:28 +01:00
Chris Wilson
f19a1942c2 Add a GTT timing test 
Using for diagnosing some mysterious slowdowns. Should include a variant
for basic benchmarking...

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
 2010-12-23 12:47:17 +00:00