> With recent changes in guile vm there are lots on improvements on the
> Gambit benchmarks.
Improvements compared to what?
I should have been more concise.. I have run these benchmarks against
guile HEAD for some time (after I reported a few bugs, performance
regressions included, affecting the benchmark suite I have done this
every once in a while to get some additional test coverage) and now I had
something to report. Guile I compared to is a git version before vector
instructions were added to VM. Guile is now a little bit slower
generally, but significantly faster in many real-world benchmarks using
vectors.
> but there are huge wins in testcases involving vectors offsetting
> this.
Oh, that's cool, but it feels like we're slightly cheating on these.
;-)
Well it seems to be a good cheat then :)
This is not tail-recursive (because of the nested `ack' call in the
`else' clause), which is why it can lead to a stack overflow.
I understand that, but I reported this because interpreter (both 1.8.6 and
1.9.0) run this test successfully but VM does not. Probably real-world
programs don't have so deep a recursion, although they might when run with
complex data..
Thanks for your reply,
Juhani Viheräoski
