Nathan Meyers wrote:
> Nick Lawson wrote:
> > ............
>
> Pretty impressive optimization on symcjit, though it smells a bit like a
> compiler that's been tuned to the benchmarks. Does it perform that well
> on real applications?
>
> Nathan
>
I can only comment on one real application - matrix diagonalization, which is
heavy floating point stuff. One method, theres no real difference between sunwjit
and symcjit,
a second method symcjit is about 3 times faster.
These methods are copied from Numerical Algorithms in C, so maybe your point
about benchmarks could still apply ..... although I had to de-optimize the C code
in
order to understand it !
Nick
>
> > The times for this (Pentium 166, Sun Windows 95 JDK 1.2, Blackdown 1.2pre-v2
> > + glibc 2.1 + OpenLinux 2.2,
> > 500,000,000 iterations):
> >
> > VM: kaffe Sun Sun Blackdown Blackdown
> > JIT: symcjit none sunwjit none
> > ----- ------- ---- --------- ----------
> > With try/catch 388,212 12,360 545,410 136,207 466,300
> > Without 396,401 15,490 601,000 143,784 508,770
> >
> > %faster 2% 20% 9.2% 5.2% 8.3%
> >
>
----------------------------------------------------------------------
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
