JIT weirdness on OS X?
Aaron
reic0024 at d.umn.edu
Sun Aug 12 09:17:50 UTC 2001
Hey all!
With the recent JIT discussion in the "Squeak JIT Status" thread, I got
motivated to try out the Unix PPC JIT under Mac OS X. That, and the
Carbon Squeak VM was eating 30+% of my CPU time when idle. :)
I ran the tinyBenchmarks. My results were odd, at best. I know
benchmarks aren't everything, but trying the JIT under Mac OS 9 a while
back, I got better results.
unix ppc version:
'33092037 bytecodes/sec; 1113841 sends/sec'
unix ppc version with -jit option:
'30769230 bytecodes/sec; 1144483 sends/sec'
carbon version:
'44046799 bytecodes/sec; 1309267 sends/sec'
Machine is an iBook 500 MHz, 192 MB RAM running Mac OS X 10.0.4. Anyone
have any idea of what to make of this?
Regards,
Aaron
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