From: Eli Zaretskii <eliz@gnu.org>
To: Konstantin Kharlamov <hi-angel@yandex.ru>
Cc: fweimer@redhat.com, dj@redhat.com, carlos@redhat.com,
monnier@iro.umontreal.ca, 45200@debbugs.gnu.org
Subject: bug#45200: [PATCH] Force Glibc to free the memory freed
Date: Wed, 03 Feb 2021 16:44:17 +0200 [thread overview]
Message-ID: <83v9b943em.fsf@gnu.org> (raw)
In-Reply-To: <3f4f8b3034e9f52f48ec520f2732b1687bb24dbc.camel@yandex.ru> (message from Konstantin Kharlamov on Wed, 03 Feb 2021 11:23:43 +0300)
> From: Konstantin Kharlamov <hi-angel@yandex.ru>
> Date: Wed, 03 Feb 2021 11:23:43 +0300
> Cc: carlos@redhat.com, fweimer@redhat.com, 45200@debbugs.gnu.org, dj@redhat.com
>
> Second, most importantly, what `malloc_trim(0)` does is it restores the correct behavior. I mean, what's the point of ever freeing memory if it's not freed, right?
The purpose of freeing memory is to make it available for further
allocations by the program. You seem to interpret "freeing memory" to
mean that memory should be returned to the OS, but that's not
necessarily true, and isn't required to allow the freeing program be
able to allocate more memory in the future.
> The problem we're dealing here with is an actual bug in glibc⁵. What this implies is that if the fix indeed hurts performance someplace, well, then it's that this place requires additional performance-related fixes. As opposed to just ignoring the bug because of performance got somewhere decreased. Things like, changing the slow algorithm, or modifying GC behavior for specific usecases…
The fact that the bug you reported didn't get any responses in more
than a month, let alone wasn't fixed, could be a sign that not
everyone agrees this is a bug...
next prev parent reply other threads:[~2021-02-03 14:44 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 [this message]
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
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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