[Bf-blender-cvs] [ba7c2b7] master: Cycles: Log allocation slop factor for BVH arrays

[Sergey Sharybin]

Commit: ba7c2b7b7317a3d7f81bf0e70468124a6c06e96d
Author: Sergey Sharybin
Date:   Mon Apr 4 12:55:24 2016 +0200
Branches: master
https://developer.blender.org/rBba7c2b7b7317a3d7f81bf0e70468124a6c06e96d

Cycles: Log allocation slop factor for BVH arrays

Currently they're staying at 1 (actual size over capacity), but we
will be changing it quite soon in order to avoid having too much
memory re-allocation happening at a BVH build time and will be
playing with different policies for that.

===================================================================

M	intern/cycles/bvh/bvh_build.cpp

===================================================================

diff --git a/intern/cycles/bvh/bvh_build.cpp b/intern/cycles/bvh/bvh_build.cpp
index 9f77ea3..3f43ae7 100644
--- a/intern/cycles/bvh/bvh_build.cpp
+++ b/intern/cycles/bvh/bvh_build.cpp
@@ -293,7 +293,11 @@ BVHNode* BVHBuild::run()
 			        << "  Number of inner nodes: "
 			        << rootnode->getSubtreeSize(BVH_STAT_INNER_COUNT)  << "\n"
 			        << "  Number of leaf nodes: "
-			        << rootnode->getSubtreeSize(BVH_STAT_LEAF_COUNT)  << "\n";
+			        << rootnode->getSubtreeSize(BVH_STAT_LEAF_COUNT)  << "\n"
+			        << "  Allocation slop factor: "
+			               << ((prim_type.capacity() != 0)
+			                       ? (float)prim_type.size() / prim_type.capacity()
+			                       : 1.0f) << "\n";
 		}
 	}