On 16 Jul 2025, at 13:08, Eli Zaretskii wrote:
From: Przemysław Alexander Kamiński
<przemyslaw@kaminski.se>
Cc: 79023@debbugs.gnu.org
Date: Tue, 15 Jul 2025 15:52:20 +0200I've done some extra testing, since I wouldn't be surprised if some release on a string was missing or something. On a fresh instance blinking cursor is enough to raise memory usage. 10mb over 4.5mb and garbage- didn't releaes memory.
Please describe this recipe in more detail, starting from "emacs -Q",
so others could try repeating it. Also, please describe how you
measure the memory leaks and what are the numbers you see.
Unfortunatelly there's nothing more I can do, Instruments is strictly GUI app. All text has to be extracted manually. I know it's probably the worst way to do, but I recorded example session with emacs -Q.
https://www.youtube.com/watch?v=_korzyoMXfY
It'd be nice if someone smarter than me and more experienced in MacOS system programming took a look on this, my current line is to have a build pipeline and throw different ideas until I can find something that works.
I think I can reproduce test case and even think what might be the cause, as I looked around MacOS code for couple of minutes.
Please do, and thanks.
I've been able to reproduce by using blinking cursor (setq blink-cursor-blinks 0 blink-cursor-interval 0.1).
Attached patch seemed to decrease number of allocations and leaks but it's not enough to make a dent.
Best,
Przemysław Alexander Kamiński