Invokedynamic slower than reflection?

[Eric Bodden]

Hi all.

I did some simple micro-benchmarking with the current implementation
of invokedynamic. In the attached test class, I call a method
"greeter" 100,000,000 times using invokedynamic and then using
reflection. Reflection only takes about 1338ms, while invokedynamic
takes about 12099. (This was taken on OSX 10.6, with build
"1.7.0-internal-stephen_2010_05_28_19_48-b00"). By the way
invokedynamic works, I had expected it to be at least as fast as a
reflective call.

Can you tell me if this kind of performance is expected in general?

Best wishes,
Eric

--
Dr. Eric Bodden
Software Technology Group, Technische Universität Darmstadt, Germany
Tel: +49 6151 16-5478    Fax: +49 6151 16-5410
Mailing Address: S2|02 A209, Hochschulstraße 10, 64289 Darmstadt
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