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From: Ihor Radchenko <yantar92@posteo.net>
To: Eli Zaretskii <eliz@gnu.org>
Cc: arne_bab@web.de, spacibba@aol.com, emacs-devel@gnu.org
Subject: Re: Indentation and gc
Date: Wed, 15 Mar 2023 10:29:51 +0000	[thread overview]
Message-ID: <87jzziqpcw.fsf@localhost> (raw)
In-Reply-To: <83ilf3scn1.fsf@gnu.org>

Eli Zaretskii <eliz@gnu.org> writes:

>> At least, it can indirectly demonstrate the impact of GC threshold onto
>> Emacs memory footprint. I guess it is what we worry about at the end.
>> Or does the fragmentation cause other severe effects in addition to
>> higher memory usage?
>
> _Real_ memory fragmentation, if it happens in Emacs, should cause the
> memory footprint grow all the time without leveling out, and
> malloc-info should then show that most of the memory is in small
> chunks that cannot be spliced together.
>
> However, I have yet to see a platform where Emacs causes memory
> fragmentation.  Where the system malloc cannot be trusted, we use
> gmalloc (and in the past used ralloc).  Most modern platforms have
> reliable malloc these days (the single known exception is MSDOS), so
> this problem largely doesn't exist.

In other words, we should not worry about gc-cons-threshold causing
_real_ memory fragmentation. Just about increasing the memory footprint.

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>



  reply	other threads:[~2023-03-15 10:29 UTC|newest]

Thread overview: 99+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20230310110747.4hytasakomvdyf7i.ref@Ergus>
2023-03-10 11:07 ` Indentation and gc Ergus
2023-03-10 14:36   ` Dr. Arne Babenhauserheide
2023-03-10 14:54     ` Eli Zaretskii
2023-03-10 19:23       ` Dr. Arne Babenhauserheide
2023-03-11  6:38         ` Eli Zaretskii
2023-03-11  6:55           ` Dr. Arne Babenhauserheide
2023-03-11  7:56             ` Eli Zaretskii
2023-03-11 12:34               ` Dr. Arne Babenhauserheide
2023-03-11 13:08                 ` Eli Zaretskii
2023-03-11 13:31                   ` Ihor Radchenko
2023-03-11 13:44                     ` Eli Zaretskii
2023-03-11 13:53                       ` Ihor Radchenko
2023-03-11 14:09                         ` Eli Zaretskii
2023-03-12 14:20                           ` Ihor Radchenko
2023-03-12 14:40                             ` Eli Zaretskii
2023-03-12 15:04                               ` Ihor Radchenko
2023-03-12 15:26                                 ` Eli Zaretskii
2023-03-13 15:09                                   ` Ihor Radchenko
2023-03-13 15:37                                     ` Eli Zaretskii
2023-03-13 15:45                                       ` Ihor Radchenko
2023-03-13 16:58                                         ` Eli Zaretskii
2023-03-13 18:04                                           ` Ihor Radchenko
2023-03-14 12:19                                             ` Eli Zaretskii
2023-03-15 10:28                                               ` Ihor Radchenko
2023-03-15 12:54                                                 ` Eli Zaretskii
2023-03-15 12:59                                                   ` Ihor Radchenko
2023-03-15 14:20                                                     ` Eli Zaretskii
2023-03-16 10:27                                                       ` Ihor Radchenko
2023-04-06  9:13                                                         ` Ihor Radchenko
2023-04-08  8:04                                                           ` Eli Zaretskii
2023-04-08  8:15                                                             ` Ihor Radchenko
2023-04-08 10:03                                                               ` Eli Zaretskii
2023-04-14 17:07                                                                 ` Ihor Radchenko
2023-04-14 17:56                                                                   ` Eli Zaretskii
2023-03-13 18:14                                         ` Gregor Zattler
2023-03-14 12:30                                           ` Eli Zaretskii
2023-03-14 15:19                                             ` Gregor Zattler
2023-03-11 16:19                     ` Dr. Arne Babenhauserheide
2023-03-12 13:27                       ` Ihor Radchenko
2023-03-12 14:10                         ` Eli Zaretskii
2023-03-12 14:50                           ` Ihor Radchenko
2023-03-12 15:13                             ` Eli Zaretskii
2023-03-12 17:15                               ` Gregor Zattler
2023-03-12 20:07                                 ` Eli Zaretskii
2023-03-13 15:01                               ` Ihor Radchenko
2023-03-13 15:33                                 ` Eli Zaretskii
2023-03-13 15:39                                   ` Ihor Radchenko
2023-03-13 15:39                                     ` Eli Zaretskii
2023-03-13 16:04                                       ` Ihor Radchenko
2023-03-13 16:52                                         ` Eli Zaretskii
2023-03-14 12:47                                           ` Ihor Radchenko
2023-03-14 13:09                                             ` Eli Zaretskii
2023-03-15 10:29                                               ` Ihor Radchenko [this message]
2023-03-13 15:41                                 ` Eli Zaretskii
2023-03-14 13:01                                   ` Ihor Radchenko
2023-03-11 10:54       ` Ihor Radchenko
2023-03-11 11:17         ` Ergus
2023-03-11 11:23           ` Ihor Radchenko
2023-03-11 12:31           ` Eli Zaretskii
2023-03-11 12:39             ` Ihor Radchenko
2023-03-11 12:40               ` Eli Zaretskii
2023-03-11 12:54                 ` Ihor Radchenko
2023-03-11 13:01                   ` Dr. Arne Babenhauserheide
2023-03-11 13:14                   ` Eli Zaretskii
2023-03-11 13:38                     ` Ihor Radchenko
2023-03-11 13:46                       ` Eli Zaretskii
2023-03-11 13:54                         ` Ihor Radchenko
2023-03-11 14:11                           ` Eli Zaretskii
2023-03-11 14:18                             ` Ihor Radchenko
2023-03-11 14:20                               ` Eli Zaretskii
2023-03-11 14:31                                 ` Ihor Radchenko
2023-03-11 15:32                                   ` Eli Zaretskii
2023-03-11 15:52                                     ` Lynn Winebarger
2023-03-11 16:24                                       ` Eli Zaretskii
2023-03-11 17:10                                     ` Gregor Zattler
2023-03-11 17:25                                       ` Eli Zaretskii
2023-03-11 18:35                                         ` Gregor Zattler
2023-03-11 18:49                                           ` Eli Zaretskii
2023-03-13 12:45                                     ` Ihor Radchenko
2023-03-13 12:51                                       ` Eli Zaretskii
2023-06-14 14:16                                         ` Ihor Radchenko
2023-06-14 15:36                                           ` Eli Zaretskii
2023-06-14 15:58                                             ` Ihor Radchenko
2023-06-14 16:07                                               ` Eli Zaretskii
2023-06-16 10:00                                                 ` Ihor Radchenko
2023-06-16 10:33                                                   ` Eli Zaretskii
2023-06-16 11:03                                                     ` Ihor Radchenko
2023-06-16 11:34                                                       ` Eli Zaretskii
2023-06-21 10:37                                                         ` Ihor Radchenko
2023-06-21 11:11                                                           ` Eli Zaretskii
2023-03-11 13:00                 ` Po Lu
2023-03-11 12:37         ` Eli Zaretskii
2023-03-11 13:10           ` Ihor Radchenko
2023-03-11 13:38             ` Eli Zaretskii
2023-03-10 14:52   ` Eli Zaretskii
2023-03-10 21:30     ` Ergus
2023-03-11  6:52       ` Eli Zaretskii
2023-03-21  7:11   ` Jean Louis
2023-03-21  7:27     ` Emanuel Berg

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