Hi Rémi, I believe this is not actually safe. There is no guarantee that when SwitchPoint.invalidateAll() returns that all calls to GET_BYTE or PUT_BYTE that were in flight have completed.
Regards, Jeroen > -----Original Message----- > From: mlvm-dev-boun...@openjdk.java.net [mailto:mlvm-dev- > boun...@openjdk.java.net] On Behalf Of Remi Forax > Sent: Sunday, February 16, 2014 22:54 > To: Da Vinci Machine Project > Subject: JIT and invalidation > > Hi John, Hi Christian, Hi all, > I don't know if you can test this little code, but when I run it on my > laptop (linux 64bits) it can terminate in 45s or 2 minutes, it seems > that it depends on the order the JIT compiles the method handles. > https://gist.github.com/forax/9041030 > > Sometimes it also PrintCompilation can also prints 'COMPILE SKIPPED: > invalid non-klass dependency'. > > BTW, the code allows to safely* map and unmap a 32G file without not > always paying the cost of the runtime check that test if the array is > unmaped or not :) > > cheers, > Rémi > * I believe. > _______________________________________________ > mlvm-dev mailing list > mlvm-dev@openjdk.java.net > http://mail.openjdk.java.net/mailman/listinfo/mlvm-dev _______________________________________________ mlvm-dev mailing list mlvm-dev@openjdk.java.net http://mail.openjdk.java.net/mailman/listinfo/mlvm-dev
