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bug#39361: continuation and gc performance
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From: |
Ludovic Courtès |
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Subject: |
bug#39361: continuation and gc performance |
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Date: |
Sun, 22 Mar 2020 21:51:31 +0100 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) |
Hi,
Stefan Israelsson Tampe <address@hidden> skribis:
> That function marks the working stack no, what about stack segments in
> continuations will they be marked correctly as well?
Oh you’re right, from a quick look at continuations.c, a continuation’s
stack appears to be conservatively scanned (allocated with
‘scm_gc_malloc’).
My intuition is that it’s “good enough” in most cases, but could affect
GC performance a tiny bit in continuation-heavy code, such as Fibers.
Ludo’.