diff options
Diffstat (limited to 'core')
| -rw-r--r-- | core/src/main/scala/spark/SizeEstimator.scala | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/core/src/main/scala/spark/SizeEstimator.scala b/core/src/main/scala/spark/SizeEstimator.scala index f196a6d818..3a63b236f3 100644 --- a/core/src/main/scala/spark/SizeEstimator.scala +++ b/core/src/main/scala/spark/SizeEstimator.scala @@ -37,6 +37,9 @@ object SizeEstimator { // TODO: Get this from jvm/system property val isCompressedOops = Runtime.getRuntime.maxMemory < (Integer.MAX_VALUE.toLong*2) + // Based on https://wikis.oracle.com/display/HotSpotInternals/CompressedOops + // section, "Which oops are compressed" + // Minimum size of a java.lang.Object val OBJECT_SIZE = if (!is64bit) 8 else { if(!isCompressedOops) { |