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parallel solver: slightly overallocate to reduce how often allocation is needed

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This commit is contained in:
Lunkhound
2018-03-13 04:19:02 -07:00
parent eec478709a
commit e526e48df8
2 changed files with 22 additions and 4 deletions
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6
src/BulletDynamics/ConstraintSolver/btBatchedConstraints.cpp
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@@ -892,6 +892,12 @@ static void setupSpatialGridBatchesMt(
memHelper.addChunk( (void**) &constraintBatchIds, sizeof( int ) * numConstraints );
memHelper.addChunk( (void**) &constraintRowBatchIds, sizeof( int ) * numConstraintRows );
size_t scratchSize = memHelper.getSizeToAllocate();
// if we need to reallocate
if (scratchMemory->capacity() < scratchSize)
{
// allocate 6.25% extra to avoid repeated reallocs
scratchMemory->reserve( scratchSize + scratchSize/16 );
}
scratchMemory->resizeNoInitialize( scratchSize );
char* memPtr = &scratchMemory->at(0);
memHelper.setChunkPointers( memPtr );