From f1aeb2ccf4deb4625f7ae59d673317d09b9580ca Mon Sep 17 00:00:00 2001 From: Martijn Berger Date: Mon, 17 Feb 2014 20:11:45 +0100 Subject: [PATCH] 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. --- intern/cycles/device/device_cuda.cpp | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/intern/cycles/device/device_cuda.cpp b/intern/cycles/device/device_cuda.cpp index 3073f078d12..fa65aeffba1 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); }