From: Ihor Radchenko <yantar92@posteo.net>
To: Emanuel Berg <incal@dataswamp.org>
Cc: emacs-devel@gnu.org
Subject: Re: Shrinking the C core
Date: Mon, 28 Aug 2023 11:27:03 +0000 [thread overview]
Message-ID: <877cpf2yrc.fsf@localhost> (raw)
In-Reply-To: <87jztfrd6v.fsf@dataswamp.org>
Emanuel Berg <incal@dataswamp.org> writes:
>> During native compilation, if type information and n and
>> d is available, GCC might have a chance to cut a number of
>> branches away from the above code.
>
> Does this indicate a tendency where one can foresee a future
> where Elisp is as fast as C to the point C could be
> dropped completely?
No. Low-level memory management must still be in C. And some
performance-critical that uses internals for efficiency.
For example, `transpose-regions' directly modifies internal buffer array
holding byte stream of the buffer text, suing memcpy.
There is no way this low-level structure is exposed to Elisp level.
(Otherwise, bad Elisp can simply crash Emacs).
> Still, I wonder if those typechecks in C really slow things
> down to the point it matters. Maybe for really huge
> number-crunching computations?
As with many other things, it depends.
We saw for bignums that typechecks are taking most time.
Typechecks also take significant time in fib benchmarks.
However, for example, Org parser spends most of the time in Emacs regexp
engine, not in typechecks.
--
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>
next prev parent reply other threads:[~2023-08-28 11:27 UTC|newest]
Thread overview: 353+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-09 9:46 Shrinking the C core Eric S. Raymond
2023-08-09 10:55 ` Andreas Schwab
2023-08-09 11:03 ` Eric S. Raymond
2023-08-09 11:29 ` Andreas Schwab
2023-08-09 12:34 ` Po Lu
2023-08-09 15:51 ` Eric S. Raymond
2023-08-09 23:56 ` Po Lu
2023-08-10 1:19 ` Eric S. Raymond
2023-08-10 1:47 ` Christopher Dimech
2023-08-10 1:58 ` Eric Frederickson
2023-08-10 2:07 ` Sam James
2023-08-10 2:44 ` Po Lu
2023-08-10 6:48 ` Eli Zaretskii
2023-08-10 21:21 ` Eric S. Raymond
2023-08-10 21:19 ` Eric S. Raymond
2023-08-10 21:56 ` Emanuel Berg
2023-08-11 5:46 ` Eli Zaretskii
2023-08-11 8:45 ` Emanuel Berg
2023-08-11 11:24 ` Eli Zaretskii
2023-08-11 12:12 ` Emanuel Berg
2023-08-11 13:16 ` Eli Zaretskii
2023-08-10 2:28 ` Po Lu
2023-08-10 4:15 ` Christopher Dimech
2023-08-10 7:44 ` Eli Zaretskii
2023-08-10 21:54 ` Emanuel Berg
2023-08-11 10:27 ` Bignum performance (was: Shrinking the C core) Ihor Radchenko
2023-08-11 12:10 ` Emanuel Berg
2023-08-11 12:32 ` Ihor Radchenko
2023-08-11 12:38 ` Emanuel Berg
2023-08-11 14:07 ` [PATCH] " Ihor Radchenko
2023-08-11 18:06 ` Emanuel Berg
2023-08-11 19:41 ` Ihor Radchenko
2023-08-11 19:50 ` Emanuel Berg
2023-08-12 8:24 ` Ihor Radchenko
2023-08-12 16:03 ` Emanuel Berg
2023-08-13 9:09 ` Ihor Radchenko
2023-08-13 9:49 ` Emanuel Berg
2023-08-13 10:21 ` Ihor Radchenko
2023-08-14 2:20 ` Emanuel Berg
2023-08-14 2:42 ` [PATCH] Re: Bignum performance Po Lu
2023-08-14 4:16 ` Emanuel Berg
2023-08-14 7:15 ` Ihor Radchenko
2023-08-14 7:50 ` Po Lu
2023-08-14 9:28 ` Ihor Radchenko
2023-08-15 14:28 ` Emanuel Berg
2023-08-14 7:20 ` [PATCH] Re: Bignum performance (was: Shrinking the C core) Ihor Radchenko
2023-08-11 22:46 ` Emanuel Berg
2023-08-12 8:30 ` Ihor Radchenko
2023-08-12 16:22 ` Emanuel Berg
2023-08-13 9:12 ` Ihor Radchenko
2023-08-11 14:14 ` Mattias Engdegård
2023-08-11 18:09 ` Emanuel Berg
2023-08-10 23:49 ` Shrinking the C core Eric S. Raymond
2023-08-11 0:03 ` Christopher Dimech
2023-08-11 8:24 ` Immanuel Litzroth
2023-08-11 7:03 ` Eli Zaretskii
2023-08-11 7:19 ` tomas
2023-08-11 10:57 ` Eli Zaretskii
2023-08-10 11:28 ` Dmitry Gutov
2023-08-10 21:26 ` Eric S. Raymond
2023-08-12 2:46 ` Richard Stallman
2023-08-12 3:22 ` Emanuel Berg
2023-08-12 8:33 ` Ihor Radchenko
2023-08-12 15:58 ` Emanuel Berg
2023-08-13 9:13 ` Ihor Radchenko
2023-08-13 9:55 ` Emanuel Berg
2023-08-13 10:23 ` Ihor Radchenko
2023-08-13 20:55 ` Emanuel Berg
2023-08-14 0:13 ` Emanuel Berg
2023-08-12 18:32 ` tomas
2023-08-12 22:08 ` Emanuel Berg
2023-08-12 23:09 ` Emanuel Berg
2023-08-13 5:50 ` tomas
2023-08-13 8:38 ` Emanuel Berg
2023-08-13 15:54 ` [External] : " Drew Adams
2023-08-13 8:00 ` Andreas Schwab
2023-08-13 9:21 ` Emanuel Berg
2023-08-14 7:27 ` Alfred M. Szmidt
2023-08-14 7:36 ` Ihor Radchenko
2023-08-14 7:50 ` Alfred M. Szmidt
2023-08-15 22:57 ` Emanuel Berg
2023-08-16 10:27 ` Ihor Radchenko
2023-08-19 13:29 ` Emanuel Berg
2023-08-20 5:09 ` Ihor Radchenko
2023-08-20 6:51 ` Emanuel Berg
2023-08-20 7:14 ` Ihor Radchenko
2023-08-20 7:52 ` Emanuel Berg
2023-08-20 13:01 ` tomas
2023-08-20 13:12 ` Ihor Radchenko
2023-08-20 8:28 ` Alfred M. Szmidt
2023-08-20 9:29 ` Emanuel Berg
2023-08-20 15:22 ` Alfred M. Szmidt
2023-08-20 15:36 ` Ihor Radchenko
2023-08-20 15:45 ` Eli Zaretskii
2023-08-20 15:54 ` Ihor Radchenko
2023-08-20 16:29 ` Alfred M. Szmidt
2023-08-20 16:37 ` Ihor Radchenko
2023-08-20 17:19 ` Alfred M. Szmidt
2023-08-20 17:31 ` Ihor Radchenko
2023-08-20 18:54 ` Alfred M. Szmidt
2023-08-20 19:07 ` Eli Zaretskii
2023-08-27 3:53 ` Emanuel Berg
2023-08-20 19:15 ` Ihor Radchenko
2023-08-20 19:24 ` Ihor Radchenko
2023-08-21 2:33 ` Eli Zaretskii
2023-08-21 4:11 ` Ihor Radchenko
2023-08-21 4:15 ` Po Lu
2023-08-21 4:36 ` Ihor Radchenko
2023-08-21 4:43 ` Po Lu
2023-08-21 5:06 ` Ihor Radchenko
2023-08-21 5:25 ` [External] : " Drew Adams
2023-08-21 5:34 ` Po Lu
2023-08-21 9:17 ` Add more supported primitives in libgccjit IR (was: Shrinking the C core) Ihor Radchenko
2023-08-21 9:42 ` Gregory Heytings
2023-08-21 10:36 ` Ihor Radchenko
2023-08-21 11:02 ` Alfred M. Szmidt
2023-08-21 11:41 ` Ihor Radchenko
2023-08-21 12:20 ` Eli Zaretskii
2023-08-21 14:49 ` Add more supported primitives in libgccjit IR Andrea Corallo
2023-08-23 10:11 ` Ihor Radchenko
2023-08-25 9:19 ` Andrea Corallo
2023-08-25 11:06 ` Ihor Radchenko
2023-08-25 14:26 ` Andrea Corallo
2023-08-26 11:14 ` Ihor Radchenko
2023-08-27 1:40 ` Emanuel Berg
2023-08-27 7:38 ` Emanuel Berg
2023-08-27 13:42 ` Andrea Corallo
2023-08-27 22:19 ` Emanuel Berg
2023-08-28 5:04 ` Andrea Corallo
2023-08-28 19:49 ` Emanuel Berg
2023-08-26 0:47 ` Emanuel Berg
2023-08-26 8:26 ` Ihor Radchenko
2023-08-26 17:52 ` Emanuel Berg
2023-08-21 11:05 ` Add more supported primitives in libgccjit IR (was: Shrinking the C core) Gregory Heytings
2023-08-21 11:46 ` Ihor Radchenko
2023-08-21 12:33 ` Gregory Heytings
2023-08-21 11:34 ` Add more supported primitives in libgccjit IR Manuel Giraud via Emacs development discussions.
2023-08-21 11:02 ` Add more supported primitives in libgccjit IR (was: Shrinking the C core) Alfred M. Szmidt
2023-08-21 11:12 ` Add more supported primitives in libgccjit IR Eli Zaretskii
2023-08-21 11:53 ` Ihor Radchenko
2023-08-27 2:04 ` Shrinking the C core Emanuel Berg
2023-08-21 7:59 ` Gregory Heytings
2023-08-27 5:31 ` Emanuel Berg
2023-08-27 6:16 ` Emanuel Berg
2023-08-21 10:48 ` Eli Zaretskii
2023-08-21 11:56 ` Ihor Radchenko
2023-08-21 12:22 ` Eli Zaretskii
2023-08-28 4:41 ` Emanuel Berg
2023-08-28 11:27 ` Ihor Radchenko [this message]
2023-08-20 20:15 ` Alfred M. Szmidt
2023-08-20 20:39 ` Ihor Radchenko
2023-08-21 5:59 ` Alfred M. Szmidt
2023-08-21 6:23 ` Ihor Radchenko
2023-08-21 7:21 ` Alfred M. Szmidt
2023-08-21 7:26 ` Ihor Radchenko
2023-08-21 7:52 ` Alfred M. Szmidt
2023-08-21 10:46 ` Ihor Radchenko
2023-08-21 11:02 ` Alfred M. Szmidt
2023-08-27 4:01 ` Emanuel Berg
2023-08-27 8:53 ` Ihor Radchenko
2023-08-27 3:48 ` Emanuel Berg
2023-08-27 9:06 ` Ihor Radchenko
2023-08-27 3:25 ` Emanuel Berg
2023-08-27 8:55 ` Ihor Radchenko
2023-08-20 16:03 ` Alfred M. Szmidt
2023-08-20 16:34 ` Ihor Radchenko
2023-08-20 17:19 ` Alfred M. Szmidt
2023-08-20 17:25 ` Ihor Radchenko
2023-08-20 18:54 ` Alfred M. Szmidt
2023-08-20 19:02 ` Eli Zaretskii
2023-08-20 20:11 ` Alfred M. Szmidt
2023-08-23 21:09 ` Emanuel Berg
2023-08-26 2:01 ` Richard Stallman
2023-08-26 5:48 ` Eli Zaretskii
2023-08-26 18:15 ` Emanuel Berg
2023-08-26 18:27 ` Eli Zaretskii
2023-08-20 19:14 ` Eli Zaretskii
2023-08-20 19:44 ` Ihor Radchenko
2023-08-20 20:11 ` Alfred M. Szmidt
2023-08-21 2:35 ` Eli Zaretskii
2023-08-21 8:48 ` Ihor Radchenko
2023-08-21 11:10 ` Eli Zaretskii
2023-08-21 11:59 ` Ihor Radchenko
2023-08-21 12:23 ` Eli Zaretskii
2023-08-23 10:13 ` Ihor Radchenko
2023-08-20 20:32 ` Emanuel Berg
2023-08-21 6:19 ` Alfred M. Szmidt
2023-08-21 6:26 ` Ihor Radchenko
2023-08-21 7:21 ` Alfred M. Szmidt
2023-08-21 7:25 ` Ihor Radchenko
2023-08-21 7:52 ` Alfred M. Szmidt
2023-08-21 11:26 ` Ihor Radchenko
2023-08-22 23:55 ` Emanuel Berg
2023-08-23 7:04 ` Alfred M. Szmidt
2023-08-23 17:24 ` Emanuel Berg
2023-08-24 20:02 ` Emanuel Berg
2023-08-20 21:51 ` [External] : " Drew Adams
2023-08-21 8:54 ` Type declarations in Elisp (was: [External] : Re: Shrinking the C core) Ihor Radchenko
2023-08-21 9:30 ` Gerd Möllmann
2023-08-21 11:13 ` Type declarations in Elisp Eli Zaretskii
2023-08-21 11:37 ` Type declarations in Elisp (was: [External] : Re: Shrinking the C core) Ihor Radchenko
2023-08-22 5:34 ` Type declarations in Elisp Gerd Möllmann
2023-08-22 6:16 ` Ihor Radchenko
2023-08-22 11:14 ` Eli Zaretskii
2023-08-22 23:33 ` Emanuel Berg
2023-08-25 9:29 ` Andrea Corallo
2023-08-25 20:42 ` Emanuel Berg
2023-08-27 8:42 ` Ihor Radchenko
2023-08-27 14:04 ` Andrea Corallo
2023-08-27 14:07 ` Ihor Radchenko
2023-08-27 15:46 ` Andrea Corallo
2023-08-27 17:15 ` Ihor Radchenko
2023-08-27 18:06 ` Andrea Corallo
2023-08-28 9:56 ` Ihor Radchenko
2023-08-28 19:06 ` Emanuel Berg
2023-08-18 8:35 ` Shrinking the C core Aurélien Aptel
2023-08-19 13:32 ` Emanuel Berg
2023-08-31 1:41 ` Emanuel Berg
2023-08-14 2:36 ` Richard Stallman
2023-08-14 4:12 ` Emanuel Berg
2023-08-14 11:15 ` Ihor Radchenko
2023-08-12 3:28 ` Christopher Dimech
2023-08-12 3:48 ` Emanuel Berg
2023-08-12 3:50 ` Emanuel Berg
2023-08-12 6:00 ` Christopher Dimech
2023-08-12 6:02 ` Eli Zaretskii
2023-08-12 7:38 ` Christopher Dimech
2023-08-09 12:45 ` Eli Zaretskii
2023-08-09 16:11 ` Eric S. Raymond
2023-08-09 16:44 ` Eli Zaretskii
2023-08-09 17:57 ` Eric S. Raymond
-- strict thread matches above, loose matches on Subject: below --
2023-08-13 7:59 Gerd Möllmann
2023-08-13 8:44 ` Emanuel Berg
2023-08-13 8:06 Gerd Möllmann
2023-08-13 9:26 ` Emanuel Berg
2023-08-13 11:20 Gerd Möllmann
2023-08-13 12:52 ` Ihor Radchenko
2023-08-27 15:14 Arthur Miller
2023-08-27 16:29 ` Eli Zaretskii
2023-08-28 5:32 ` Gerd Möllmann
2023-08-28 6:23 ` Arthur Miller
2023-08-28 6:21 ` Arthur Miller
2023-08-28 1:31 ` Richard Stallman
2023-08-28 5:50 ` Arthur Miller
2023-08-28 12:20 ` Po Lu
2023-08-28 14:39 ` Arthur Miller
2023-08-28 15:17 ` Po Lu
2023-08-29 2:41 ` Arthur Miller
2023-08-28 1:41 ` Po Lu
2023-08-28 2:53 ` chad
2023-08-28 3:43 ` Emanuel Berg
2023-08-28 4:53 ` Arthur Miller
2023-08-28 5:36 ` Po Lu
2023-08-28 6:55 ` Arthur Miller
2023-08-28 7:31 ` Po Lu
2023-08-28 8:06 ` Ihor Radchenko
2023-08-28 14:30 ` Arthur Miller
2023-08-28 15:09 ` Ihor Radchenko
2023-08-29 2:20 ` Arthur Miller
2023-08-28 15:14 ` Po Lu
2023-08-29 2:36 ` Arthur Miller
2023-08-29 4:07 ` Po Lu
2023-08-31 1:07 ` Emanuel Berg
2023-08-28 14:08 ` Arthur Miller
2023-08-28 15:08 ` Po Lu
2023-08-29 2:06 ` Arthur Miller
2023-08-29 4:15 ` Po Lu
2023-08-29 11:50 ` Eli Zaretskii
2023-08-29 3:57 ` Arthur Miller
2023-09-01 1:18 ` Richard Stallman
2023-08-31 2:07 ` Richard Stallman
2023-09-01 14:58 ` Arthur Miller
2023-09-01 16:36 ` tomas
2023-09-04 1:32 ` Richard Stallman
2023-09-04 1:44 ` Emanuel Berg
2023-09-04 5:49 ` Rudolf Schlatte
2023-09-04 14:08 ` Emanuel Berg
2023-09-07 1:21 ` Richard Stallman
2023-09-07 1:54 ` Emanuel Berg
2023-09-07 7:02 ` tomas
2023-09-07 7:36 ` Alfred M. Szmidt
2023-09-07 7:56 ` Emanuel Berg
2023-09-07 8:19 ` Ihor Radchenko
2023-09-07 8:39 ` Emanuel Berg
2023-09-07 9:28 ` Alfred M. Szmidt
2023-09-09 1:00 ` Emanuel Berg
2023-09-09 6:25 ` Po Lu
2023-09-09 7:24 ` Eli Zaretskii
2023-09-07 9:31 ` Eli Zaretskii
2023-09-07 9:39 ` Ihor Radchenko
2023-09-09 1:06 ` Emanuel Berg
2023-09-11 0:43 ` Richard Stallman
2023-09-11 12:24 ` Eli Zaretskii
2023-09-11 12:43 ` tomas
2023-09-13 5:59 ` Emanuel Berg
2023-09-12 4:44 ` Gerd Möllmann
2023-09-12 12:25 ` João Távora
2023-09-12 11:31 ` Lynn Winebarger
2023-09-13 6:12 ` Emanuel Berg
2023-09-05 4:23 ` Arthur Miller
2023-09-06 0:58 ` Richard Stallman
2023-09-06 1:12 ` Emanuel Berg
2023-09-06 5:04 ` Arthur Miller
2023-09-06 11:29 ` Alan Mackenzie
2023-09-06 23:03 ` Emanuel Berg
2023-09-07 7:00 ` tomas
2023-09-07 7:23 ` Emanuel Berg
2023-09-07 7:52 ` tomas
2023-09-07 5:30 ` Po Lu
2023-09-07 6:15 ` Emanuel Berg
2023-09-11 0:43 ` Richard Stallman
2023-09-11 12:05 ` Eli Zaretskii
2023-09-12 23:55 ` Richard Stallman
2023-09-13 6:34 ` Emanuel Berg
2023-09-07 8:51 ` Manuel Giraud via Emacs development discussions.
2023-09-07 9:20 ` Po Lu
2023-09-07 9:34 ` Eli Zaretskii
2023-09-08 2:00 ` Arthur Miller
2023-09-08 7:35 ` Gerd Möllmann
2023-09-09 10:05 ` João Távora
2023-09-08 17:58 ` Bob Rogers
2023-09-15 21:59 ` Emanuel Berg
2023-09-17 23:03 ` Richard Stallman
2023-09-09 0:39 ` Richard Stallman
2023-09-09 12:50 ` Arthur Miller
2023-09-12 0:27 ` Richard Stallman
2023-08-28 7:45 ` Andrea Monaco
2023-08-28 14:35 ` Arthur Miller
2023-09-12 3:46 Arthur Miller
2023-09-12 11:55 ` Eli Zaretskii
2023-09-12 18:22 ` chad
2023-09-12 18:47 ` Yuri Khan
2023-09-12 19:06 ` Eli Zaretskii
2023-09-12 19:07 ` joakim
2023-09-12 19:42 ` Eli Zaretskii
2023-09-12 21:56 ` joakim
2023-09-13 5:05 ` Emanuel Berg
2023-09-13 14:29 ` joakim
2023-09-15 5:46 ` Emanuel Berg
2023-09-13 15:33 ` Fraga, Eric
2023-09-15 5:51 ` Emanuel Berg
2023-09-15 11:38 ` Fraga, Eric
2023-09-12 3:51 Arthur Miller
2023-09-12 4:47 ` tomas
2023-09-12 11:29 ` Po Lu
2023-09-12 13:02 ` Alfred M. Szmidt
2023-09-13 5:06 Arthur Miller
2023-09-13 6:33 ` Gerd Möllmann
2023-09-14 11:35 ` Arthur Miller
2023-09-14 13:03 ` Gerd Möllmann
2023-09-14 13:20 ` Eli Zaretskii
2023-09-15 17:11 ` Emanuel Berg
2023-09-15 18:39 ` Eli Zaretskii
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