l...@gnu.org (Ludovic Courtès) writes:
> Hello,
>
> l...@gnu.org (Ludovic Courtès) writes:
>
>> ("subr.bm: subr invocation: simple subr" 700000 total 0.98)
>> ("subr.bm: subr invocation: generic subr" 700000 total 1.39)
>> ("subr.bm: subr invocation: generic subr with rest arg" 700000 total
>> 1.32)
>> ("subr.bm: subr invocation: generic subr with rest arg and 3+
>> parameters" 700000 total 1.63)
>
> "Interestingly", this is roughly twice as slow as 1.8 (!).
>
> After some manual bisecting, I found the offending commit (dated
> 2008-08-16):
>
>
> http://git.savannah.gnu.org/cgit/guile.git/commit/?id=82ae1b8eb3413e6be6bd2aa032986fc7782e85ac
But presumably this doesn't matter much, if we are going to switch to
BDW-GC. What's your latest thinking on that?
> Strangely enough, the "simple subr" case, which is not GC-intensive, is
> slower with BDW-GC. This needs further investigation...
It's not very much slower - and IMO, not serious enough to be a
significant factor against BDW-GC.
But it's nicer to understand things fully, so I agree that
investigation would be good too.
Neil
