Re: Hotswap patch?
Patrick Wright wrote: Thomas--is any special flag required to enable this when launching the JVM if I build MLVM with your changeset in it? Also, I assume that if classes are redefined we will eventually run into the standard problems of PermGen limits on loaded classes? No, there is no special flag required to enable my hotswap code. When you apply the changeset to jdk7-b51, you swap the current hotswapping implementation with my version. Yes, with frequent use of hotswapping the problem of a limited PermGen arises. Especially as currently the old classes are still kept in the system. A fix for this might be to remove old classes from the system if none of their methods are active or reachable from active methods (and this is true for all of their subclasses). - thomas ___ mlvm-dev mailing list mlvm-dev@openjdk.java.net http://mail.openjdk.java.net/mailman/listinfo/mlvm-dev
Re: Hotswap patch?
The design of the hotswap patch is described in the PDF linked from this page: http://wikis.sun.com/display/mlvm/HotSwap I believe (under correction from you, Thomas!) that the patch is the initial result of a research project that he did earlier this year at JKU Linz, that he is now working on other things, and that he doesn't have specific plans (yet) to extend it further. See the message below. Thomas will be talking about this work at Sun on Wednesday, and InfoQ will be taping the talk (like most of the talks at the Summit). Yes - during the talk I will also outline future directions that I am currently considering and I would be happy about any kind of feedback! - thomas ___ mlvm-dev mailing list mlvm-dev@openjdk.java.net http://mail.openjdk.java.net/mailman/listinfo/mlvm-dev
Re: Hotswap patch?
Thanks for the links to the Wiki and PDF. It looks like a lot of what we've been asking for. Thomas--is any special flag required to enable this when launching the JVM if I build MLVM with your changeset in it? Also, I assume that if classes are redefined we will eventually run into the standard problems of PermGen limits on loaded classes? Thanks Patrick ___ mlvm-dev mailing list mlvm-dev@openjdk.java.net http://mail.openjdk.java.net/mailman/listinfo/mlvm-dev
Hotswap patch?
Hi John I just saw that you pushed a changeset from Thomas Wuerthinger related to expanding hotswap--from the unit tests included, it looks pretty nice--add/remove fields and methods etc. Anything you can tell us about it, status etc? I didn't know anyone was working on this in the Da Vinci Machine. Thanks! Patrick ___ mlvm-dev mailing list mlvm-dev@openjdk.java.net http://mail.openjdk.java.net/mailman/listinfo/mlvm-dev
