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gcj slower than JVM on RedHat/s390?
- From: Andrew Haley <aph at redhat dot com>
- To: "Andy Faibishenko" <AFAIBIS at transunion dot com>
- Cc: <java at gcc dot gnu dot org>
- Date: Wed, 2 Apr 2003 17:49:27 +0100 (BST)
- Subject: gcj slower than JVM on RedHat/s390?
- References: <se8ab8fe.071@tu_asynch_1.tuc.com>
Andy Faibishenko writes:
> I have a small test program which I use as a benchmarking tool. It
> doesn't use
> threads/jdbc/etc.. - i.e. plain vanilla java code. When I compiled it
> with GCJ I
> was surprised to find that it takes up almost TWICE as much CPU time as
> the JVM
> version (as reported by the time command). I am trying to figure out
> why this is.
The IBM JIT is astonishingly fast,
Andrew.