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From: Helmut Eller <eller.helmut@gmail.com>
To: "Gerd Möllmann" <gerd.moellmann@gmail.com>
Cc: Eli Zaretskii <eliz@gnu.org>,  emacs-devel@gnu.org
Subject: Re: MPS codegen
Date: Thu, 13 Jun 2024 21:15:20 +0200	[thread overview]
Message-ID: <87ed90fyd3.fsf@gmail.com> (raw)
In-Reply-To: <m2y178vfl9.fsf@pro2.fritz.box> ("Gerd Möllmann"'s message of "Thu, 13 Jun 2024 20:54:10 +0200")

>> The win would be that no code for copying and mirroring would be needed.
>> One downside would be that the hot and cold section end up in the same
>> pool.
>
> Then I didn't understand what you meant. How would you avoid the
> copying? I don't remember seeing something in the MPS docs by which one
> could let it manage a area of memory the user can allocate or specify.

The idea is simply to do something like dump_mmap_contiguous_heap.
Instead of malloc'ing the contiguous chunk of memory use mps_reserve.
After the pdumper has done the usual relocations call mps_commit.

(It might not work out quite like this because the pdumper wants to
allocate something too early, ie. before the mps_commit. But that's the
basic idea.)

The crucial bit that I'm unsure about is if mps_reserve can be used to
allocate many objects in this way.



  reply	other threads:[~2024-06-13 19:15 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-10 13:39 MPS: Update Gerd Möllmann
2024-06-10 16:17 ` Andrea Corallo
2024-06-10 16:26   ` Gerd Möllmann
2024-06-10 16:44     ` Gerd Möllmann
2024-06-10 20:58       ` Andrea Corallo
2024-06-11  3:12         ` Gerd Möllmann
2024-06-11 20:35 ` Helmut Eller
2024-06-12  4:45   ` Gerd Möllmann
2024-06-12  7:54     ` Eli Zaretskii
2024-06-12  8:00       ` Gerd Möllmann
2024-06-13  9:07         ` MPS codegen (was: MPS: Update) Helmut Eller
2024-06-13 12:33           ` MPS codegen Gerd Möllmann
2024-06-13 17:48             ` Helmut Eller
2024-06-13 18:24               ` Gerd Möllmann
2024-06-13 18:31                 ` Gerd Möllmann
2024-06-13 18:38                 ` Helmut Eller
2024-06-13 18:54                   ` Gerd Möllmann
2024-06-13 19:15                     ` Helmut Eller [this message]
2024-06-13 19:37                       ` Gerd Möllmann
2024-06-14  6:37                         ` Eli Zaretskii
2024-06-14  7:30                           ` Gerd Möllmann
2024-06-14  7:56                             ` Gerd Möllmann
2024-06-14 10:52                               ` Eli Zaretskii
2024-06-14 10:46                             ` Eli Zaretskii
2024-06-13 23:09                 ` Andrea Corallo
2024-06-14  6:08                   ` Gerd Möllmann
2024-06-14  7:45                     ` Helmut Eller
2024-06-14  7:59                       ` Gerd Möllmann
2024-06-14  8:28                         ` Gerd Möllmann
2024-06-14  8:51                           ` Helmut Eller
2024-06-14 11:32                             ` Eli Zaretskii
2024-06-14 12:43                               ` Gerd Möllmann
2024-06-14 13:04                                 ` Eli Zaretskii
2024-06-14 13:17                                   ` Gerd Möllmann
2024-06-14 13:46                                     ` Eli Zaretskii
2024-06-14 14:05                                       ` Gerd Möllmann
2024-06-14 14:33                                         ` Eli Zaretskii
2024-06-14 14:46                                           ` Gerd Möllmann
2024-06-14 16:30                               ` Helmut Eller
2024-06-14 18:28                                 ` Eli Zaretskii
2024-06-14 19:03                                   ` Eli Zaretskii
2024-06-14 19:26                                     ` Helmut Eller
2024-06-14 19:50                                       ` Gerd Möllmann
2024-06-15  6:26                                         ` Eli Zaretskii
2024-06-15  7:10                                           ` Gerd Möllmann
2024-06-15  7:34                                             ` Eli Zaretskii
2024-06-15  8:22                                               ` Gerd Möllmann
2024-06-15  6:11                                       ` Eli Zaretskii
2024-06-15  7:25                                         ` Gerd Möllmann
2024-06-15  7:46                                           ` Eli Zaretskii
2024-06-15  8:14                                             ` Gerd Möllmann
2024-06-15  8:38                                               ` Gerd Möllmann
2024-06-15  8:44                                                 ` Helmut Eller
2024-06-15  8:56                                                   ` Gerd Möllmann
2024-06-15  9:07                                                     ` Helmut Eller
2024-06-15  9:27                                                       ` Gerd Möllmann
2024-06-15 12:33                                                     ` Gerd Möllmann
2024-06-16  6:16                                                       ` Gerd Möllmann
2024-06-16  7:53                                                         ` Eli Zaretskii
2024-06-16  8:19                                                           ` Gerd Möllmann
2024-06-16  8:40                                                             ` Helmut Eller
2024-06-16  8:49                                                               ` Gerd Möllmann

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