Github user advancedxy commented on the pull request: https://github.com/apache/spark/pull/4783#issuecomment-76190779 @shivaram -- I followed the [JDK-8024912](https://bugs.openjdk.java.net/browse/JDK-8024912), [JDK-8024913](https://bugs.openjdk.java.net/browse/JDK-8024913) and [JDK-7007564](https://bugs.openjdk.java.net/browse/JDK-7007564), It looks like non-static field size is aligned to wordSize(8 bytes on 64bit JVM without UseCompressedOops, 4bytes otherwise, verified by the Sizeof code I mentioned on the jira). And the hotspot JVM wouldn't change that in short time. This is the hotspot version, and I have no ideas about other version's of JVM. But I think we can use this setting up for now just like we did with the ALIGN_SIZE? And this is what I get for now. If we (including others or some JVM experts) can agree on that, I will update the code. So, waiting for others' opinion now
--- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. --- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org