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bug#61489: [PATCH v2] Increase BLOCK_ALIGN from 1024 to 32768


From: Eli Zaretskii
Subject: 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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