FGFS-4.1/OpenSceneGraph
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Enabled sharing of main threads processor affinity to the next required thread for CullDrawThreadPerCamera and CullThreadPerCameraDrawThreadPerContext

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Robert Osfield
2016-11-15 11:01:41 +00:00
parent 5ff6048db0
commit 137b596943
1 changed files with 8 additions and 2 deletions
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10
src/osgViewer/ViewerBase.cpp
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@@ -113,6 +113,13 @@ void ViewerBase::configureAffinity()
bool requiresCameraThreads = false;
bool requiresDrawThreads = false;
unsigned int availableProcessor = 0;
// set affinity for first processor
_affinity = OpenThreads::Affinity(availableProcessors[availableProcessor]);
// all threading models except DrawThreadPerContext can share the first cull or culldraw threads with thread with the main thread,
// so only increment the availableProcessor for DrawThreadPerContext to prevent draw threads sitting on the same thread as main thread that does cull
switch(_threadingModel)
{
case(CullDrawThreadPerContext):
@@ -121,6 +128,7 @@ void ViewerBase::configureAffinity()
case(DrawThreadPerContext):
requiresDrawThreads = true;
++availableProcessor;
break;
case(CullThreadPerCameraDrawThreadPerContext):
@@ -133,9 +141,7 @@ void ViewerBase::configureAffinity()
};
unsigned int availableProcessor = 0;
_affinity = OpenThreads::Affinity(availableProcessors[availableProcessor++]);
if (requiresCameraThreads)
{