GNU bug report logs - #45200
Wishlist: There should be a `malloc-trim' function

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From: Konstantin Kharlamov <hi-angel <at> yandex.ru>
To: martin rudalics <rudalics <at> gmx.at>, Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: carlos <at> redhat.com, fweimer <at> redhat.com, dj <at> redhat.com, 45200 <at> debbugs.gnu.org
Subject: bug#45200: [PATCH] Force Glibc to free the memory freed
Date: Wed, 03 Feb 2021 14:08:06 +0300

On Wed, 2021-02-03 at 12:06 +0100, martin rudalics wrote:
>  >> What I meant was if people really disabled GC for the rest of their
>  >> session and got away with it.  But that was only a rhetorical question
>  >> to which the answer is clearly no.
>  >
>  > I'm not sure where you got this answer from. The first link I referred to
> has a
>  > user which does exactly that, and it is a highly upvoted question with 4k
> views.
> 
> If the first link refers to
> 
> 1:
> https://emacs.stackexchange.com/questions/34342/is-there-any-downside-to-setting-gc-cons-threshold-very-high-and-collecting-ga
> 
> then
> 
> (setq gc-cons-threshold (eval-when-compile (* 1024 1024 1024)))
> (run-with-idle-timer 2 t (lambda () (garbage-collect)))
> 
> obviously means that this author does GC as soon as Emacs is idle.

Yes. I think you misread this thread, the case where the problem first came up is exactly running GC on idle.

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