On 01/25/2011 07:16 PM, Jochen Theodorou wrote:
Am 25.01.2011 18:57, schrieb Chanwit Kaewkasi:
Hi Jochen,
I am not sure but performance may not be tuned yet for 64-bit
machines. My codes has been outdated by recent JVM builds and I do not
have time to get some performance figures. Probably you'd like to try
running on 32-bit and the server VM.
I hope it is not optimized for 64bit yet, since my fib example I ran
here was even with Reflection faster.
bye Jochen
It's optimized for 64bits.
But if you enable invokedynamic, you disable escape analysis*.
For small benchmarks with a dynamic language, it severely impact
performance.
* there is a partial fix in hotspot repository that enables escape
analysis when
invokedynamic is used. But EA analysis in not yet able to look
through invokedynamic.
Rémi
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