From: DJ Delorie <dj@redhat.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: carlos@redhat.com, fweimer@redhat.com, monnier@iro.umontreal.ca,
45200@debbugs.gnu.org, Hi-Angel@yandex.ru
Subject: bug#45200: [PATCH] Force Glibc to free the memory freed
Date: Tue, 26 Jan 2021 11:13:52 -0500 [thread overview]
Message-ID: <xnr1m7islb.fsf@greed.delorie.com> (raw)
In-Reply-To: <83lfcf21ny.fsf@gnu.org> (message from Eli Zaretskii on Tue, 26 Jan 2021 16:49:53 +0200)
Eli Zaretskii <eliz@gnu.org> writes:
>> malloc_trim() is very expensive relative to free(), partly because of
>> what it needs to do, and partly because it flushes the fastbins cache.
>
> How expensive? Can you give some quantitative measure?
malloc_trim() is to free() as garbage collection is to just dropping a
reference.
>> If you call it every, say, 1000 iterations of free, that might suffice.
>> Or perhaps after each GC run.
>
> There's no guarantee that a full GC will call 'free', even though
> that's quite likely.
malloc_trim() is our garbage collector, if you call it after GC that
would be "appropriate" at least ;-)
next prev parent reply other threads:[~2021-01-26 16:13 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-12 18:43 bug#45200: Memory leaks: (garbage-collect) fails to reclaim memory Konstantin Kharlamov
2020-12-12 20:15 ` Eli Zaretskii
2020-12-12 22:44 ` Konstantin Kharlamov
2020-12-12 22:59 ` Lars Ingebrigtsen
2020-12-13 6:08 ` Eli Zaretskii
2020-12-13 5:53 ` Eli Zaretskii
2020-12-13 12:07 ` Konstantin Kharlamov
2021-01-24 15:24 ` bug#45200: [PATCH] Force Glibc to free the memory freed Konstantin Kharlamov
2021-01-24 15:40 ` Eli Zaretskii
2021-01-25 22:17 ` DJ Delorie
2021-01-25 22:28 ` Konstantin Kharlamov
2021-01-26 14:55 ` Eli Zaretskii
2021-01-26 15:02 ` Konstantin Kharlamov
2021-01-26 15:30 ` Stefan Monnier
2021-02-02 21:17 ` Konstantin Kharlamov
2021-02-03 4:45 ` Stefan Monnier
2021-02-03 4:50 ` Stefan Monnier
2021-02-03 6:04 ` Konstantin Kharlamov
2021-02-03 7:07 ` Eli Zaretskii
2021-02-03 7:15 ` Konstantin Kharlamov
2021-02-03 7:39 ` martin rudalics
2021-02-03 8:23 ` Konstantin Kharlamov
2021-02-03 9:35 ` martin rudalics
2021-02-03 9:49 ` Konstantin Kharlamov
2021-02-03 10:35 ` Konstantin Kharlamov
2021-02-03 11:06 ` martin rudalics
2021-02-03 11:08 ` Konstantin Kharlamov
2021-02-03 11:16 ` Konstantin Kharlamov
2021-02-03 12:56 ` martin rudalics
2021-02-03 13:00 ` Konstantin Kharlamov
2021-02-03 15:14 ` martin rudalics
2021-02-03 15:15 ` Stefan Monnier
2021-02-03 15:29 ` Konstantin Kharlamov
2021-02-03 16:02 ` Stefan Monnier
2021-02-03 16:35 ` Konstantin Kharlamov
2021-02-03 16:51 ` Stefan Monnier
2021-02-03 19:30 ` DJ Delorie
2021-02-03 19:36 ` DJ Delorie
2021-02-03 20:28 ` Konstantin Kharlamov
2021-02-03 20:51 ` DJ Delorie
2021-05-18 20:12 ` Konstantin Kharlamov
2021-05-19 4:11 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-05-19 4:26 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-05-19 6:46 ` Konstantin Kharlamov
2021-05-19 9:47 ` Eli Zaretskii
2021-05-19 9:55 ` Konstantin Kharlamov
2021-05-19 10:09 ` Eli Zaretskii
2021-02-03 14:51 ` Eli Zaretskii
2021-02-03 15:01 ` Konstantin Kharlamov
2021-02-03 14:44 ` Eli Zaretskii
2021-02-03 15:12 ` Andreas Schwab
2021-02-03 19:25 ` DJ Delorie
2021-02-03 19:49 ` Eli Zaretskii
2021-02-03 21:00 ` DJ Delorie
2021-02-03 20:24 ` Stefan Monnier
2021-02-03 20:42 ` DJ Delorie
2021-02-03 22:07 ` Stefan Monnier
2021-02-03 22:21 ` DJ Delorie
2021-02-03 23:32 ` Stefan Monnier
2021-02-04 0:31 ` DJ Delorie
2021-02-04 3:26 ` Stefan Monnier
2021-02-04 3:38 ` DJ Delorie
2021-02-04 3:55 ` Stefan Monnier
2021-02-04 4:02 ` DJ Delorie
2021-02-04 4:19 ` Stefan Monnier
2021-02-04 4:26 ` DJ Delorie
2021-02-04 4:04 ` DJ Delorie
2021-02-03 15:15 ` Stefan Monnier
2021-01-26 14:49 ` Eli Zaretskii
2021-01-26 16:13 ` DJ Delorie [this message]
2021-12-04 23:20 ` bug#45200: Memory leaks: (garbage-collect) fails to reclaim memory Lars Ingebrigtsen
2021-12-05 6:23 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-12-05 8:26 ` Eli Zaretskii
2022-05-01 9:43 ` bug#45200: Wishlist: There should be a `malloc-trim' function Lars Ingebrigtsen
2021-12-05 19:59 ` bug#45200: Memory leaks: (garbage-collect) fails to reclaim memory Lars Ingebrigtsen
2021-12-05 7:07 ` Eli Zaretskii
2021-01-24 18:51 ` Stefan Monnier
2021-01-24 19:00 ` Konstantin Kharlamov
2021-01-24 19:06 ` Konstantin Kharlamov
2021-01-24 19:55 ` Eli Zaretskii
2021-01-24 19:12 ` Stefan Monnier
2021-01-24 20:00 ` Konstantin Kharlamov
2021-01-24 20:11 ` Eli Zaretskii
2021-01-24 20:21 ` Konstantin Kharlamov
2021-01-24 21:20 ` Stefan Monnier
2021-01-24 21:26 ` Konstantin Kharlamov
2021-01-24 21:41 ` Stefan Monnier
2021-01-24 21:55 ` Konstantin Kharlamov
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