Commit: f1aeb2ccf4deb4625f7ae59d673317d09b9580ca
Author: Martijn Berger
Date: Mon Feb 17 20:11:45 2014 +0100
https://developer.blender.org/rBf1aeb2ccf4deb4625f7ae59d673317d09b9580ca
this is an attempted Fix: T38679
Cycles GPU Performance Regression
>From my testing this (what i should have done in the first place) reduces the
>regression a lot.
Lets hope it is enough or we have to go back to busy waiting.
===================================================================
M intern/cycles/device/device_cuda.cpp
===================================================================
diff --git a/intern/cycles/device/device_cuda.cpp
b/intern/cycles/device/device_cuda.cpp
index 3073f07..fa65aef 100644
--- a/intern/cycles/device/device_cuda.cpp
+++ b/intern/cycles/device/device_cuda.cpp
@@ -654,9 +654,6 @@ public:
cuda_assert(cuFuncSetBlockShape(cuPathTrace, xthreads,
ythreads, 1))
cuda_assert(cuLaunchGridAsync(cuPathTrace, xblocks, yblocks,
cuStream))
- cuda_assert(cuEventRecord(tileDone, cuStream ))
- cuda_assert(cuEventSynchronize(tileDone))
-
cuda_pop_context();
}
@@ -989,6 +986,8 @@ public:
task->update_progress(tile);
}
+ cuda_assert(cuEventRecord(tileDone, cuStream ))
+ cuda_assert(cuEventSynchronize(tileDone))
task->release_tile(tile);
}
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