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Re: Memory usage report

From: Eli Zaretskii
Subject: Re: Memory usage report
Date: Fri, 18 Sep 2020 18:44:14 +0300

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: Eli Zaretskii <eliz@gnu.org>,  Ihor Radchenko <yantar92@gmail.com>,
>   emacs-devel@gnu.org
> Date: Fri, 18 Sep 2020 17:19:00 +0200
> https://www.reddit.com/r/emacs/comments/iuott9/emacs_memory_leak_debugging/
> Relevant quote:
> > Over in #guix irc, the guix people seemed to think it was a memory leak with
> > helm.
> >
> > I was watching my emacs consume about 0.1% more system memory every 2 or 3
> > seconds. Setting
> >
> > (setq helm-ff-keep-cached-candidates nil)
> >
> > Seemed to make the problem go away.

That helm cache is stored in a hash-table, AFAIU, in which case we
should have seen that in the GC report.  But in all of the cases where
people complained about such huge RSS, the GC report shows a very
small Lisp memory usage, so that helm cache cannot be the culprit.
It's something else, whether related to helm-ff-keep-cached-candidates
or some other feature.

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