Native compilation article

Anthony Green green@redhat.com
Fri Jan 25 10:09:00 GMT 2002


On Fri, 2002-01-25 at 06:26, shudo@computer.org wrote:
> I have made performance comparisions of many runtime
> systems including GCJ:
> 
>   http://www.shudo.net/jit/perf/

Hey, this is cool.  What surprised me was the number of time compiling
.class files beat out compiling .java files.  I wonder why that
happens...

I suppose "gcj -O2" is a reasonable guess at picking right compiler
options, although "-O3" is supposed to be the general `maximum
optimization' flag.  I'd love to see results with different options used
(-O3, different alignment options, basic block reordering, -mcpu=***,
etc).

Thanks for making this work available!  

AG




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