[OpenJDK Rasterizer] Marlin #4

[Sergey Bylokhov]

I got results below after I made a hack and added -march=native to the libawt library:

"EllipseFill.fillEllipse 1400"
8u60_RE: 6,540
9_dev: 8,457
9_hack: 6,276

So we have a window for tweaking.

----- sergey.bylokhov at oracle.com wrote:

> Hello,
> I built both version of jdk8 and jdk9 on my local system, and compares
> output of preprocessor and generated assemblers, both are identical.
> But jdk8u60 from RE actually 20% faster than my version of jdk8. It
> seems that the difference is in the compiler and/or in some
> compiler(gcc) options used by default.
> 
> ----- james.graham at oracle.com wrote:
> 
> > As far as why the software loops are slower...
> > 
> > Did any command line options change for compiling IntArgbPre.c? 
> Touch
> > 
> > the file and rebuild and verify if the compiler options are the same
> 
> > (and that both builds use the same compiler)...
> > 
> > 			...jim