[Help-smalltalk] Using COMMON/UNCOMMON

[Holger Hans Peter Freyther]

Hi Paolo,
on the hype of the micro benchmarking I started to look at GST (mostly to
understand the VM and not so much in making it faster). It appears to me that
when defining COMMON/UNCOMMON to nothing we get a speedup on the
tinyBenchmark. So this means that either some of the COMMON/UNCOMMOM are
placed incorrectly, or that the tinyBenchmark is not what we are optimizing
for and that the COMMON/UNCOMMON are better for some workloads.

Would you be interested in knowing from where this difference is coming? I
could build with gprof and then use lcov and their branch visualization.


holger


Before:
198180762 bytecodes/sec; 6070565 sends/sec

After:
220286113 bytecodes/sec; 6342298 sends/sec

PS: stable-3.2 as of yesterday, on a Fedora14/i686 system.