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From: Helmut Eller <eller.helmut@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: gerd.moellmann@gmail.com,  emacs-devel@gnu.org
Subject: Re: Collecting markers with MPS
Date: Wed, 24 Apr 2024 21:18:19 +0200	[thread overview]
Message-ID: <874jbqin7o.fsf@gmail.com> (raw)
In-Reply-To: <867cgm3exf.fsf@gnu.org> (Eli Zaretskii's message of "Wed, 24 Apr 2024 19:26:20 +0300")

On Wed, Apr 24 2024, Eli Zaretskii wrote:

>> Yes, but only the programmers know which markers they no longer need.
>
> Sorry, I don't follow: how does the old GC detect dead markers?

I don't know the details. You'd have to read the code.  It's wizard
level.

> Why cannot a function we write do the same?

Because we would probably have to scan the heap for all potentially live
objects.

> I don't believe programmers will know which markers are no longer
> needed, primarily because most markers are completely unknown to
> programmers, Emacs creates them for its own purposes and never exposes
> them to Lisp.

Not all of course.  But those programmers who create markers like crazy
probably know it.  If they assume that markers are expensive then they
could better keep track of them (or not create them in the first place).

Helmut



  parent reply	other threads:[~2024-04-24 19:18 UTC|newest]

Thread overview: 149+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-20  9:34 STatus of MPS branch Gerd Möllmann
2024-04-20 14:56 ` Michael Albinus
2024-04-20 15:08   ` Gerd Möllmann
2024-04-20 15:32     ` Michael Albinus
2024-04-20 17:37       ` Gerd Möllmann
2024-04-21  7:39         ` Michael Albinus
2024-04-21  7:56           ` Gerd Möllmann
2024-04-21  8:00             ` Gerd Möllmann
2024-04-21  8:04               ` Michael Albinus
2024-04-21  8:08                 ` Gerd Möllmann
2024-04-21  8:18                   ` Michael Albinus
2024-04-21  8:28                     ` Gerd Möllmann
2024-04-21  8:17           ` Gerd Möllmann
2024-04-21  9:43             ` Michael Albinus
2024-04-21 10:07               ` Gerd Möllmann
2024-04-21 10:58                 ` Tramp tests in MPS branch (was: STatus of MPS branch) Michael Albinus
2024-04-21 12:44                   ` Tramp tests in MPS branch Gerd Möllmann
2024-04-21  9:29           ` STatus of " Eli Zaretskii
2024-04-21  4:38 ` Gerd Möllmann
2024-04-21  5:31   ` Eli Zaretskii
2024-04-21  5:39     ` Gerd Möllmann
2024-04-21  9:04       ` Eli Zaretskii
2024-04-21  9:17         ` Gerd Möllmann
2024-04-21  6:15 ` Gerd Möllmann
2024-04-21  9:09   ` Eglot tests on MPS branch (was: STatus of MPS branch) Eli Zaretskii
2024-04-21  9:53     ` João Távora
2024-04-21 10:13       ` Eglot tests on MPS branch Gerd Möllmann
2024-04-21 11:01         ` João Távora
2024-04-21 10:55       ` Eglot tests on MPS branch (was: STatus of MPS branch) Eli Zaretskii
2024-04-21  7:49 ` STatus of MPS branch Gerd Möllmann
2024-04-21  8:45   ` Gerd Möllmann
2024-04-21  9:08     ` Andrea Corallo
2024-04-21  9:33     ` Native compilation on " Eli Zaretskii
2024-04-21 10:17       ` Gerd Möllmann
2024-04-21 13:07         ` Andrea Corallo
2024-04-22  7:15           ` Gerd Möllmann
2024-04-22 22:02             ` Andrea Corallo
2024-04-23  3:11               ` Gerd Möllmann
2024-04-23 16:09               ` Gerd Möllmann
2024-04-23 19:43                 ` Andrea Corallo
2024-04-24 12:49                   ` Gerd Möllmann
2024-04-24 18:14                     ` Andrea Corallo
2024-04-24 18:28                       ` Gerd Möllmann
2024-04-24 20:54                         ` Andrea Corallo
2024-04-25  4:33                           ` Gerd Möllmann
2024-04-25  5:50                             ` Andrea Corallo
2024-04-25  7:18                               ` Gerd Möllmann
2024-04-25  8:06                                 ` Andrea Corallo
2024-04-25  8:15                                   ` Gerd Möllmann
2024-04-25  8:57                                     ` Gerd Möllmann
2024-04-25  9:42                                     ` Andrea Corallo
2024-04-25 11:33                                       ` Gerd Möllmann
2024-04-25  5:24                           ` Eli Zaretskii
2024-04-25  5:48                             ` Andrea Corallo
2024-04-25 15:20                               ` Eli Zaretskii
2024-04-26 10:15                                 ` Gerd Möllmann
2024-04-21  8:58   ` STatus of " Andrea Corallo
2024-04-21  9:19     ` Gerd Möllmann
2024-04-21  9:30   ` Native compilation on MPS branch (was: STatus of MPS branch) Eli Zaretskii
2024-04-21 14:39 ` STatus of MPS branch Helmut Eller
2024-04-21 15:37   ` Gerd Möllmann
2024-04-21 15:52     ` Eli Zaretskii
2024-04-21 20:24     ` Helmut Eller
2024-04-22  4:58       ` Gerd Möllmann
2024-04-22  5:28       ` Gerd Möllmann
2024-04-22  6:15         ` MPS signals and Emacs (was: STatus of MPS branch) Eli Zaretskii
2024-04-22  6:44           ` MPS signals and Emacs Paul Eggert
2024-04-22  7:19             ` Gerd Möllmann
2024-04-22  7:40               ` Paul Eggert
2024-04-22  7:49                 ` Gerd Möllmann
2024-04-22  8:09                   ` Eli Zaretskii
2024-04-22  8:27                     ` Gerd Möllmann
2024-04-22  8:55                       ` Eli Zaretskii
2024-04-22  9:02                         ` Mattias Engdegård
2024-04-22  9:02                         ` Gerd Möllmann
2024-04-22  9:18                           ` Eli Zaretskii
2024-04-22  9:29                             ` Gerd Möllmann
2024-04-22  9:41                               ` Eli Zaretskii
2024-04-22 10:22                                 ` Gerd Möllmann
2024-04-22 10:46                                   ` Eli Zaretskii
2024-04-22 11:00                                     ` Gerd Möllmann
2024-04-22 12:01                                       ` Eli Zaretskii
2024-04-22 12:16                                         ` Gerd Möllmann
2024-04-22 10:54                                   ` Eli Zaretskii
2024-04-22 11:05                                     ` Gerd Möllmann
2024-04-22 19:41                   ` Paul Eggert
2024-04-22 20:55                     ` Gerd Möllmann
2024-04-22 22:12                       ` Paul Eggert
2024-04-23  3:15                         ` Gerd Möllmann
     [not found]                       ` <87le54g1h2.fsf@dick>
2024-04-23  5:51                         ` Gerd Möllmann
2024-04-23  6:35                           ` Helmut Eller
2024-04-23  6:45                             ` Gerd Möllmann
2024-04-23  6:53                               ` Helmut Eller
2024-04-23 14:29                                 ` Gerd Möllmann
     [not found]                                   ` <87sezbsmsd.fsf@dick>
2024-04-24  5:03                                     ` Gerd Möllmann
2024-04-22  7:46               ` Eli Zaretskii
2024-04-22  7:55                 ` Gerd Möllmann
2024-04-22 14:10             ` Helmut Eller
2024-04-22 14:42               ` Eli Zaretskii
2024-04-22 22:06                 ` Paul Eggert
2024-04-23  7:04                   ` Eli Zaretskii
2024-04-22  5:36       ` STatus of MPS branch Gerd Möllmann
2024-04-22  5:50         ` Gerd Möllmann
2024-04-22 15:09           ` Helmut Eller
2024-04-22 17:02             ` Gerd Möllmann
2024-04-24  7:26 ` Collecting markers with MPS (was: STatus of MPS branch) Helmut Eller
2024-04-24  7:44   ` Eli Zaretskii
2024-04-24  8:56     ` Collecting markers with MPS Helmut Eller
2024-04-24  9:17       ` Gerd Möllmann
2024-04-24 10:22       ` Eli Zaretskii
2024-04-24 10:27         ` Gerd Möllmann
2024-04-24 10:58           ` Gerd Möllmann
2024-04-24 13:32             ` Eli Zaretskii
2024-04-24 13:51               ` Gerd Möllmann
2024-04-24 15:03         ` Helmut Eller
2024-04-24 15:54           ` Eli Zaretskii
2024-04-24 16:21             ` Helmut Eller
2024-04-24 16:26               ` Eli Zaretskii
2024-04-24 16:50                 ` Gerd Möllmann
2024-04-24 19:18                 ` Helmut Eller [this message]
2024-04-24 19:55                   ` Gerd Möllmann
2024-04-25  7:38                   ` Mattias Engdegård
2024-04-24  9:08     ` Gerd Möllmann
2024-04-24 19:03       ` Helmut Eller
2024-04-24 20:02         ` Gerd Möllmann
2024-04-24 20:13           ` Helmut Eller
2024-04-24 20:42             ` Gerd Möllmann
2024-04-25  9:44       ` Helmut Eller
2024-04-25 11:44         ` Gerd Möllmann
2024-04-25 16:04 ` basic questions on MPS Andrea Corallo
2024-04-25 17:51   ` Helmut Eller
2024-04-25 18:48     ` Eli Zaretskii
2024-04-25 18:53     ` Gerd Möllmann
2024-04-25 19:26     ` Vibhav Pant
2024-04-26  6:36       ` Helmut Eller
2024-04-26  7:25         ` Gerd Möllmann
2024-04-26 15:07         ` vibhavp
2024-04-26  6:42       ` Gerd Möllmann
2024-04-27  0:20     ` Richard Stallman
2024-04-27  8:41       ` Helmut Eller
2024-04-28 22:44         ` Richard Stallman
2024-04-29  4:27           ` Helmut Eller
2024-04-29 22:40             ` Richard Stallman
2024-04-25 18:41   ` Eli Zaretskii
2024-04-25 18:53     ` Andrea Corallo
2024-04-25 18:56       ` Gerd Möllmann
2024-04-25 19:29         ` Andrea Corallo
2024-04-25 19:03       ` Eli Zaretskii
2024-04-25 19:09         ` Andrea Corallo

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