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Re: GC brokenness in `master'
From: |
Ludovic Courtès |
Subject: |
Re: GC brokenness in `master' |
Date: |
Wed, 11 Mar 2009 10:23:25 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.0.90 (gnu/linux) |
Hi Neil,
Neil Jerram <address@hidden> writes:
> address@hidden (Ludovic Courtès) writes:
>> 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?
Yes, I'm still considering switching GCs anyway, but I wanted to know
what happened exactly (and whether it was really a GC issue, which
wasn't 100% obvious).
While doing this, I remembered that Valgrind can't be used with BDW-GC,
which can be annoying. I'll email the GC list about 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.
Agreed.
> But it's nicer to understand things fully, so I agree that
> investigation would be good too.
Yes.
Thanks,
Ludo'.