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Subject: |
[PATCH 0/1] Increase BLOCK_ALIGN from 2¹⁰to 2¹⁵ |
Date: |
Mon, 13 Feb 2023 23:00:05 +0300 |
This nice optimization was discussed on emacs-devel here
https://lists.gnu.org/archive/html/emacs-devel/2022-10/msg02174.html
The thread is 3 months old at this point and nobody still picked that
change up. I mentioned in the thread that I'm going to send the patch a
day ago (it won't show up in the web-interface though, because
apparently it's unable to show a thread from more than a single month),
and now in absence of any opposition here's the patch.
Konstantin Kharlamov (1):
Increase BLOCK_ALIGN from 2¹⁰to 2¹⁵
src/alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--
2.39.0
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--- Begin Message ---
Subject: |
Re: bug#61489: [PATCH v2] Increase BLOCK_ALIGN from 1024 to 32768 |
Date: |
Sat, 04 Mar 2023 13:26:58 +0200 |
> From: Konstantin Kharlamov <Hi-Angel@yandex.ru>
> Date: Thu, 16 Feb 2023 18:07:55 +0300
>
> Originally discovered by Tyler Dodge in his article "Significant Garbage
> Collection Improvement For Emacs".
>
> While testing this change on Archlinux system with Intel i5-7200U CPU,
> average time of garbage collection gets reduced by ≈25%. Other users
> report improvements up to 50%. While monitoring PSS of emacs with and
> without customizations loaded before and after the patch, no
> statistically significant differences were discovered. So overall, this
> change is a win.
>
> * src/alloc.c (BLOCK_ALIGN): increase from 1024 to 32768
Thanks, installed on the master branch, and closing the bug.
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