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Re: "Significant Garbage Collection Improvement For Emacs" - sweep_conse

From: Ihor Radchenko
Subject: Re: "Significant Garbage Collection Improvement For Emacs" - sweep_conses performance improved by 50%?
Date: Sat, 11 Feb 2023 20:10:13 +0000

"Tyler Dodge" <tyler@tdodge.consulting> writes:

> Since writing that blogpost, I did attempt a few variations of adding 
> prefetch 
> instructions in sweep_conses, but all of the variants I tried ended up having 
> significantly worse performance characteristics than omitting them. That makes
> it a bit harder for me to believe that it's attributable to cache locality, 
> but like
> you said, there are a number of other reasons that could be the actual cause.

May I know if there have been any progress on this?
Is there any help/testing needed?

GC is really making a big impact on Emacs performance. I believe that
many people would appreciate even few percent overall speed-ups if they
can be achieved as easily as described in the post. Even if only on
certain builds.

Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>

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