From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Lynn Winebarger <owinebar@gmail.com>
Cc: emacs-devel <emacs-devel@gnu.org>
Subject: Re: GC mark stack
Date: Mon, 15 Aug 2022 10:01:49 -0400 [thread overview]
Message-ID: <jwvy1vp6269.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <CAM=F=bDHE+j_LDmaTrq46UEZJeT3yXkFw_jboeZfDMKiVSWV2w@mail.gmail.com> (Lynn Winebarger's message of "Sun, 26 Jun 2022 11:31:43 -0400")
Lynn Winebarger [2022-06-26 11:31:43] wrote:
> I was reviewing alloc.c in the 28.1 source, and noted that it uses a
> semi-naive computation of the transitive closure of the graph of live
> data structures (weak hash tables is where I see it).
> Since the fix to https://debbugs.gnu.org/cgi/bugreport.cgi?bug=54698
> (commit 7a8798de95a57c8ff85f070075e0a0176b458578) moved to using an
> explicit stack, I was curious if you'd considered using a variant of
> Tarjan's SCC algorithm, such as the one described in
> http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.40.9019&rep=rep1&type=pdf
I must admit that I don't understand what you're referring to.
And seeing the lack of response by other people, I suspect I'm not alone.
Are you talking about the code in `mark_and_sweep_weak_table_contents`?
Maybe the `do .. while` loop?
Stefan
next prev parent reply other threads:[~2022-08-15 14:01 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-26 15:31 GC mark stack Lynn Winebarger
2022-06-26 15:50 ` Lynn Winebarger
2022-08-15 14:01 ` Stefan Monnier [this message]
2022-08-15 14:51 ` Lynn Winebarger
2022-08-15 16:28 ` Stefan Monnier
2022-08-15 17:52 ` Lynn Winebarger
2022-08-15 18:17 ` Stefan Monnier
2022-08-16 1:53 ` Lynn Winebarger
2022-08-16 9:50 ` Lynn Winebarger
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