On Fri, Apr 27, 2012 at 12:34 AM, Charles Oliver Nutter
<head...@headius.com> wrote:
> ANYWAY...here's JRuby master, normal JIT, Java 7u3:
>
> normal fib
> 0.805
> fib with variables
> 1.007
> fib with constants
> 2.001
> fib with additional calls
> 1.192
> fib with constants and additional calls
> 2.323
Ok, while investigating why "fib with variables" is so much slower in
IR2JVM, I found out there were a few critical calls not inlining.
Fixing that makes the IR numbers *much* more impressive:
normal fib
1.062
fib with variables
1.054
fib with constants
1.085
fib with additional calls
1.216
fib with constants and additional calls
1.175
You're reading that right...this is essentially IR2JVM code being
twice as fast for the versions with constants than the old version,
and we're very close to having all three versions with increasing
complexity having identical performance. That's amazing.
I'm going to continue filling out IR2JVM instructions with redblack
bench as the next target.
- Charlie
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