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this is an attempted Fix: T38679

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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.
This commit is contained in:
Martijn Berger
2014-02-17 20:11:45 +01:00
parent 7cc954d7a7
commit f1aeb2ccf4
1 changed files with 2 additions and 3 deletions
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5
intern/cycles/device/device_cuda.cpp
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@@ -654,9 +654,6 @@ public:
cuda_assert(cuFuncSetBlockShape(cuPathTrace, xthreads, ythreads, 1)) cuda_assert(cuFuncSetBlockShape(cuPathTrace, xthreads, ythreads, 1))
cuda_assert(cuLaunchGridAsync(cuPathTrace, xblocks, yblocks, cuStream)) cuda_assert(cuLaunchGridAsync(cuPathTrace, xblocks, yblocks, cuStream))
cuda_assert(cuEventRecord(tileDone, cuStream ))
cuda_assert(cuEventSynchronize(tileDone))
cuda_pop_context(); cuda_pop_context();
} }
@@ -989,6 +986,8 @@ public:
task->update_progress(tile); task->update_progress(tile);
} }
cuda_assert(cuEventRecord(tileDone, cuStream ))
cuda_assert(cuEventSynchronize(tileDone))
task->release_tile(tile); task->release_tile(tile);
} }