Speed Impact experiment on GCJ

Holger Hoffstaette holger@wizards.de
Wed Feb 15 18:35:00 GMT 2006

On Wed, 15 Feb 2006 18:22:02 +0000, Andrew Haley wrote:

> Holger Hoffstaette writes:
>  > 1.6 build, because that will make the 1.5 test look slow. :-) The one
>  > thing where gcj used to have a very clear advantage was
>  > interface-method invocation since before 1.5 that used to be up to 10
>  > (!)  times slower than direct method invocations; this was reduced to a
>  > factor of ~1.8 in 1.5 and completely optimized away in Mustang.
> Err, how do they do that, then?  Is there a paper somewhere?

Sorry, not that I know. I more or less discovered this by accident too..

> gcj is going to get escape analysis sooner or later, as it's an ongoing
> gcc project.  That will certainly be interesting.



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