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Date: Tue, 09 Sep 2025 10:14:31 +0200
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Subject: [PHP-DEV] merging r/w locks
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From: rob@bottled.codes ("Rob Landers")

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Hi internals,

Is there any hope to have https://github.com/php/php-src/pull/16565 merg=
ed before 8.5? It's too late to address all the locks, but having it as =
part of the ABI would be nice so we can start fixing them for 8.6/9.0. I=
n FrankenPHP, if something takes a lock, it can significantly affect per=
formance. By using r/w locks instead of exclusive locks, we can use shar=
ed locks when reading instead of exclusive locks.

=E2=80=94 Rob
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<!DOCTYPE html><html><head><title></title></head><body><div>Hi internals=
,</div><div><br></div><div>Is there any hope to have&nbsp;<a href=3D"htt=
ps://github.com/php/php-src/pull/16565">https://github.com/php/php-src/p=
ull/16565</a>&nbsp;merged before 8.5? It's too late to address all the l=
ocks, but having it as part of the ABI would be nice so we can start fix=
ing them for 8.6/9.0. In FrankenPHP, if something takes a lock, it can s=
ignificantly affect performance. By using r/w locks instead of exclusive=
 locks, we can use shared locks when reading instead of exclusive locks.=
<br></div><div><br></div><div id=3D"sig121229152">=E2=80=94 Rob</div></b=
ody></html>
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