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Re: Performance comparison of Java (and .NET) runtimes

From: Bryce McKinlay <mckinlay at redhat dot com>
To: shudo at computer dot org
Cc: java at gcc dot gnu dot org
Date: Mon, 18 Oct 2004 14:36:31 -0400
Subject: Re: Performance comparison of Java (and .NET) runtimes
References: <20041019.030331.233670748.shudo@aist.go.jp>

shudo@computer.org wrote:

I have updated a web page showing results of performance measurement of
various Java runtimes.
 Performance Comparison of Java/.NET Runtimes (Oct 2004)
 http://www.shudo.net/jit/perf/
The benchmarks on the page are mainly compute intensive and not server-side ones: SPEC JVM98, SciMark 2.0, Linpack benchmark and Eratosthenes sieve. Such benchmark results seem not to be in much demand these days but recently released JDK 5.0 pushed me into doing performance measurement.

Cool, thanks for posting that. It would be good to understand why GCJ does so poorly on some of the SPEC JVM scores. Did you ever try it with -ffast-math and/or -march=pentium4? (also, perhaps -fno-bounds-check, but I guess that is cheating)

Regards

Bryce

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