[Mesa-dev] [PATCH 1/2] i965: Issue performance warnings when growing the program cache

Kenneth Graunke kenneth at whitecape.org
Sat Aug 19 07:26:58 UTC 2017


This involves a bunch of unnecessary copying, a batch flush, and
state re-emission.
---
 src/mesa/drivers/dri/i965/brw_program_cache.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/brw_program_cache.c b/src/mesa/drivers/dri/i965/brw_program_cache.c
index 4dcfd5234df..c1898a05153 100644
--- a/src/mesa/drivers/dri/i965/brw_program_cache.c
+++ b/src/mesa/drivers/dri/i965/brw_program_cache.c
@@ -217,6 +217,8 @@ brw_cache_new_bo(struct brw_cache *cache, uint32_t new_size)
    struct brw_context *brw = cache->brw;
    struct brw_bo *new_bo;
 
+   perf_debug("Copying to larger program cache - now %d bytes\n", new_size);
+
    new_bo = brw_bo_alloc(brw->bufmgr, "program cache", new_size, 64);
    if (can_do_exec_capture(brw->screen))
       new_bo->kflags = EXEC_OBJECT_CAPTURE;
-- 
2.14.1



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