On Tue, Aug 4, 2009 at 4:17 PM, Attila Szegedi<szege...@gmail.com> wrote: > I can now confirm that it indeed does work with jruby-1.4.0dev that > indeed emits invokedynamic. > > The only catch is, it's very slow with invokedynamic, something that > Christian also mentioned.
The fact that these numbers are so bad and even degrade shows me that although it's compiling indy, it's not eliminating the handles (which is true, the inlining and handle-walking stuff is not ready yet). So it's got many layers of polymorphic calls, probably some argument boxing and unboxing, and basically a ton more overhead than our heavily tuned non-indy call path. I'm confident in the Hotspot guys :) Just wanted to make sure anyone watching didn't think this was the best it would get... > MacBook-Pro-Ati:jruby-1.4.0dev aszegedi$ bin/jruby --server -J- > Djruby.compile.invokedynamic=true -J-XX:+EnableInvokeDynamic bench/ > bench_fib_recursive.rb 15 > 2.993000 0.000000 2.993000 ( 2.915000) > 2.720000 0.000000 2.720000 ( 2.720000) > 2.773000 0.000000 2.773000 ( 2.773000) > 2.712000 0.000000 2.712000 ( 2.712000) > 3.057000 0.000000 3.057000 ( 3.057000) > 3.183000 0.000000 3.183000 ( 3.184000) > 3.167000 0.000000 3.167000 ( 3.167000) > 3.145000 0.000000 3.145000 ( 3.145000) > 3.249000 0.000000 3.249000 ( 3.249000) > 3.160000 0.000000 3.160000 ( 3.160000) > 3.104000 0.000000 3.104000 ( 3.104000) > 3.152000 0.000000 3.152000 ( 3.153000) > 3.172000 0.000000 3.172000 ( 3.171000) > 3.111000 0.000000 3.111000 ( 3.111000) > 3.201000 0.000000 3.201000 ( 3.201000) > MacBook-Pro-Ati:jruby-1.4.0dev aszegedi$ bin/jruby --server bench/ > bench_fib_recursive.rb 15 > 0.523000 0.000000 0.523000 ( 0.481000) > 0.292000 0.000000 0.292000 ( 0.291000) > 0.279000 0.000000 0.279000 ( 0.278000) > 0.283000 0.000000 0.283000 ( 0.283000) > 0.284000 0.000000 0.284000 ( 0.284000) > 0.292000 0.000000 0.292000 ( 0.292000) > 0.289000 0.000000 0.289000 ( 0.289000) > 0.286000 0.000000 0.286000 ( 0.287000) > 0.285000 0.000000 0.285000 ( 0.285000) > 0.285000 0.000000 0.285000 ( 0.285000) > 0.289000 0.000000 0.289000 ( 0.290000) > 0.282000 0.000000 0.282000 ( 0.282000) > 0.290000 0.000000 0.290000 ( 0.290000) > 0.293000 0.000000 0.293000 ( 0.293000) > 0.285000 0.000000 0.285000 ( 0.284000) _______________________________________________ mlvm-dev mailing list mlvm-dev@openjdk.java.net http://mail.openjdk.java.net/mailman/listinfo/mlvm-dev
