Hi, I'm testing Spark 2.0.0 on various architectures and have a question, are we sure if core/src/test/java/org/apache/spark/unsafe/map/AbstractBytesToBytesMapSuite.java really is attempting to use unaligned memory access (for the BytesToBytesMapOffHeapSuite tests specifically)?
Our JDKs on zSystems for example return false for the java.nio.Bits.unaligned() method and yet if I skip this check and add s390x to the supported architectures (for zSystems), all thirteen tests here pass. The 13 tests here all fail as we do not pass the unaligned requirement (but perhaps incorrectly): core/src/test/java/org/apache/spark/unsafe/map/BytesToBytesMapOffHeapSuite.java and I know the unaligned checking is at common/unsafe/src/main/java/org/apache/spark/unsafe/Platform.java Either our JDK's method is returning false incorrectly or this test isn't using unaligned memory access (so the requirement is invalid), there's no mention of alignment in the test itself. Any guidance would be very much appreciated, cheers Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU
