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authorBas Nieuwenhuizen <[email protected]>2016-03-08 16:01:47 +0100
committerMarek Olšák <[email protected]>2016-03-09 00:52:07 +0100
commit6373845d985d65c00f7c62b793e67ae5106eabff (patch)
tree4e298b6885f7d963d6389af1c3b662d52beadee0 /src/gallium
parent32e848b01627e0935f10fbf30b0a0f292c758d30 (diff)
winsys/amdgpu: enlarge buffer_indices_hashlist
Enlarge the buffer hashlist to prevent large numbers of misses due to adding more buffers than can be cached in the hashlist. The game I tested had CS's with up to 1500 buffers and the overhead of amdgpu_lookup_buffer for various sizes was: 4096 1.97% (new value) 2048 4.37% 1024 6.92% 512 9.47% (old value) (percentage of CPU usage in render thread as determined by perf) The time spent in amdgpu_add_buffer self is ~4.2% in all cases and for 4096 the time needed to clear the hashlist is still < 0.10%, so I am not expecting significant regressions. Signed-off-by: Bas Nieuwenhuizen <[email protected]> Signed-off-by: Marek Olšák <[email protected]>
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/winsys/amdgpu/drm/amdgpu_cs.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/gallium/winsys/amdgpu/drm/amdgpu_cs.h b/src/gallium/winsys/amdgpu/drm/amdgpu_cs.h
index 6ad3cddf7cb..a2fb44a4b0e 100644
--- a/src/gallium/winsys/amdgpu/drm/amdgpu_cs.h
+++ b/src/gallium/winsys/amdgpu/drm/amdgpu_cs.h
@@ -76,7 +76,7 @@ struct amdgpu_cs {
uint8_t *flags;
struct amdgpu_cs_buffer *buffers;
- int buffer_indices_hashlist[512];
+ int buffer_indices_hashlist[4096];
uint64_t used_vram;
uint64_t used_gart;