Vladimir Ivanov did some work a few years ago on MH customization for hot MH instances. It’s in the system. That should get better results than what you show. I wonder why it isn’t kicking in. You are using invokeExact right?
> On Feb 2, 2018, at 1:26 PM, Charles Oliver Nutter <head...@headius.com> wrote: > > Hey folks! > > I'm running some simple benchmarks for my FOSDEM handles talk and wanted to > reopen discussion about the performance of non-static-final method handles. > > In my test, I just try to call a method that adds given argument to a static > long. The numbers for reflection and static final handle are what I'd expect, > with the latter basically being equivalent to a direct call: > > Direct: 0.05ns/call > Reflected: 3ns/call > static final Handle: 0.05ns/call > > If the handle is coming from an instance field or local variable, however, > performance is only slightly faster than reflection. I assume the only real > improvement in this case is that it doesn't box the long value I pass in. > > local var Handle: 2.7ns/call > > What can we do to improve the performance of non-static method handle > invocation? > > - Charlie > _______________________________________________ > 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
