Java VM & .NET Performance Comparisons

johnhennessy writes "Just came across some good virtual machine performance benchmarks (on Mono's mailing list). It covers executing java bytecode via a host of different Java runtimes and also the mono runtime. Not only does it give numbers for IBM's runtime (1.4.2 and 1.3.1), Sun's runtime (1.5.0 and 1.4.2), GCJ, Mono, Jikes and much more! These numbers are also given for both Intel and Opteron (where relevant). Before the flames begin, don't forget to read the authors description of how the benchmark was carried out. Hopefuly this should inspire educated discussion on ones favourite JVM/CLR."

Comments

Re:GCJ slower than a native JVM?

[Profane MuthaFucka]

What's wrong with making a JNI wrapper on the plain old C library and using all that instead of those funky java classes. Every time I want to read a file in Java I have to read the docs on java.io.* to figure out what the hell I want.

I already know what I want. I want to open a file and read it. I don't want to have to worry about if the file is buffered or not, or if it has a method to read a line at a time. Just gimme an old-fashioned fopen () function.

So, am I crazy, or has anyone else thought this too?