From: <tomas@tuxteam.de>
To: help-gnu-emacs@gnu.org
Subject: Re: Optimising Elisp code [again]
Date: Mon, 8 Oct 2018 16:43:22 +0200 [thread overview]
Message-ID: <20181008144322.GC17389@tuxteam.de> (raw)
In-Reply-To: <86va6cplz1.fsf@zoho.com>
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On Mon, Oct 08, 2018 at 04:11:14PM +0200, Emanuel Berg wrote:
> Garreau, Alexandre wrote:
>
> > I kind of forgot why jumps are slow
>
> Isn't it as simple as all the overhead of
> placing the new function on the stack with
> return pointers and stuff?
And cold caches, and pipeline stalls and...
Modern processors are quite complex beasts, and much of it has to
do with the sad fact that RAM is much, much, MUCH slower than the
CPU, and they try to lie to you about it...
Cheers
-- tomás
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next prev parent reply other threads:[~2018-10-08 14:43 UTC|newest]
Thread overview: 285+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-05 2:15 Optimising Elisp code Davin Pearson
2018-10-05 2:19 ` Davin Pearson
2018-10-05 9:46 ` Emanuel Berg
2018-10-05 10:58 ` Noam Postavsky
2018-10-05 10:03 ` tomas
2018-10-05 14:28 ` Barry Margolin
2018-10-05 14:42 ` Emanuel Berg
2018-10-05 15:04 ` Emanuel Berg
2018-10-05 17:05 ` Óscar Fuentes
[not found] ` <mailman.1736.1538759161.1284.help-gnu-emacs@gnu.org>
2018-10-05 17:23 ` Emanuel Berg
2018-10-05 17:46 ` Óscar Fuentes
[not found] ` <mailman.1737.1538762057.1284.help-gnu-emacs@gnu.org>
2018-10-05 18:50 ` Emanuel Berg
2018-10-05 19:14 ` Emanuel Berg
2018-10-05 19:17 ` Emanuel Berg
2018-10-05 19:26 ` Emanuel Berg
2018-10-05 19:40 ` Stefan Monnier
[not found] ` <mailman.1741.1538768445.1284.help-gnu-emacs@gnu.org>
2018-10-05 21:55 ` Emanuel Berg
2018-10-05 18:04 ` James K. Lowden
2018-10-05 19:02 ` Emanuel Berg
2018-10-07 2:57 ` Barry Margolin
2018-10-06 10:45 ` Knowing where a function has been used (e.g. for optimizing) [Was: Re: Optimising Elisp code] Garreau, Alexandre
2018-10-06 14:40 ` Optimising Elisp code Stefan Monnier
2018-10-06 16:55 ` Garreau, Alexandre
2018-10-06 19:24 ` tomas
2018-10-06 19:55 ` Knowing where a function has been used (bis) [Was: Re: Optimising Elisp code] Garreau, Alexandre
2018-10-06 20:27 ` tomas
2018-10-06 21:42 ` Garreau, Alexandre
2018-10-07 8:10 ` tomas
2018-10-07 13:56 ` Garreau, Alexandre
[not found] ` <mailman.1787.1538899813.1284.help-gnu-emacs@gnu.org>
2018-10-07 12:54 ` Emanuel Berg
[not found] ` <mailman.1775.1538857674.1284.help-gnu-emacs@gnu.org>
2018-10-07 12:52 ` Emanuel Berg
2018-10-07 13:19 ` Stefan Monnier
[not found] ` <mailman.1792.1538918415.1284.help-gnu-emacs@gnu.org>
2018-10-07 15:59 ` Emanuel Berg
2018-10-07 16:30 ` Optimising Elisp code [again] Garreau, Alexandre
[not found] ` <mailman.1805.1538929865.1284.help-gnu-emacs@gnu.org>
2018-10-08 14:11 ` Emanuel Berg
2018-10-08 14:43 ` tomas [this message]
[not found] ` <mailman.1852.1539009893.1284.help-gnu-emacs@gnu.org>
2018-10-09 0:38 ` Barry Margolin
2018-10-09 6:26 ` Emanuel Berg
2018-10-09 8:07 ` Garreau, Alexandre
[not found] ` <mailman.1903.1539072429.1284.help-gnu-emacs@gnu.org>
2018-10-09 13:28 ` Emanuel Berg
2018-10-09 15:03 ` Garreau, Alexandre
[not found] ` <mailman.1911.1539097442.1284.help-gnu-emacs@gnu.org>
2018-10-09 15:26 ` Emanuel Berg
2018-10-09 19:35 ` Garreau, Alexandre
2018-10-10 16:18 ` Barry Margolin
2018-10-10 20:53 ` Óscar Fuentes
2018-10-10 23:54 ` Garreau, Alexandre
[not found] ` <mailman.1975.1539205047.1284.help-gnu-emacs@gnu.org>
2018-10-11 18:10 ` Emanuel Berg
2018-10-12 19:52 ` Robert Thorpe
2018-10-07 16:10 ` Knowing where a function has been used (bis) [Was: Re: Optimising Elisp code] Emanuel Berg
2018-10-07 16:35 ` Garreau, Alexandre
2018-10-07 19:35 ` Barry Margolin
2018-10-08 14:18 ` Emanuel Berg
2018-10-08 15:23 ` Garreau, Alexandre
2018-10-08 20:52 ` Emanuel Berg
2018-10-09 0:41 ` Barry Margolin
2018-10-09 6:35 ` Emanuel Berg
2018-10-10 16:24 ` Barry Margolin
2018-10-10 16:32 ` Emanuel Berg
2018-10-11 19:29 ` Barry Margolin
2018-10-11 20:05 ` Emanuel Berg
2018-10-12 22:32 ` Barry Margolin
2018-10-12 23:03 ` Eric Abrahamsen
2018-10-13 20:51 ` Emanuel Berg
2018-10-14 7:55 ` tomas
[not found] ` <mailman.2146.1539503732.1284.help-gnu-emacs@gnu.org>
2018-10-14 19:10 ` Emanuel Berg
2018-10-15 8:25 ` tomas
[not found] ` <mailman.2179.1539591977.1284.help-gnu-emacs@gnu.org>
2018-10-15 19:27 ` Emanuel Berg
2018-10-16 0:55 ` Van L
2018-10-17 0:20 ` Garreau, Alexandre
[not found] ` <mailman.2284.1539735662.1284.help-gnu-emacs@gnu.org>
2018-10-17 6:49 ` Emanuel Berg
2018-10-10 20:50 ` Óscar Fuentes
[not found] ` <mailman.1806.1538930105.1284.help-gnu-emacs@gnu.org>
2018-10-08 14:14 ` Emanuel Berg
2018-10-08 15:37 ` Naming, and Gnus functions length [Was: Re: Knowing where a function has been used (bis) [Was: Re: Optimising Elisp code]] Garreau, Alexandre
[not found] ` <mailman.1860.1539013068.1284.help-gnu-emacs@gnu.org>
2018-10-08 15:43 ` Emanuel Berg
2018-10-08 15:52 ` Naming, and Gnus functions length [ Garreau, Alexandre
[not found] ` <mailman.1863.1539013974.1284.help-gnu-emacs@gnu.org>
2018-10-08 16:39 ` Emanuel Berg
2018-10-08 20:03 ` Naming, and Gnus functions length [Was: Re: Knowing where a function has been used (bis) [Was: Re: Optimising Elisp code]] Eli Zaretskii
[not found] ` <mailman.1874.1539029031.1284.help-gnu-emacs@gnu.org>
2018-10-08 20:44 ` Why is Elisp slow? (was: Re: Naming, and Gnus functions length [Was: Re: Knowing where a function has been used (bis) [Was: Re: Optimising Elisp code]]) Emanuel Berg
2018-10-08 23:53 ` Why is Elisp slow? Garreau, Alexandre
2018-10-09 12:27 ` Stefan Monnier
[not found] ` <mailman.1893.1539042845.1284.help-gnu-emacs@gnu.org>
2018-10-09 6:23 ` Emanuel Berg
2018-10-09 8:05 ` Garreau, Alexandre
2018-10-09 15:04 ` Eli Zaretskii
2019-05-02 4:49 ` Van L
2019-05-02 7:56 ` tomas
2019-05-02 11:06 ` Marcin Borkowski
2019-05-02 13:18 ` tomas
2019-05-02 15:34 ` Eli Zaretskii
2019-05-02 19:13 ` Marcin Borkowski
2019-05-02 19:45 ` Eli Zaretskii
2019-05-04 11:55 ` Marcin Borkowski
2019-05-02 20:00 ` tomas
2019-05-04 11:52 ` Marcin Borkowski
2019-05-02 19:33 ` Óscar Fuentes
2019-05-02 19:49 ` Eli Zaretskii
2019-05-02 20:12 ` Óscar Fuentes
2019-05-02 20:20 ` Eli Zaretskii
2019-05-02 21:40 ` Ergus
2019-05-02 23:39 ` 조성빈
2019-05-03 0:44 ` Ergus
2019-05-03 1:06 ` 조성빈
2019-05-03 10:36 ` Ergus
2019-05-03 11:52 ` 조성빈
2019-05-03 12:44 ` Eli Zaretskii
2019-05-03 12:58 ` Ergus
2019-05-03 14:00 ` Eli Zaretskii
2019-05-03 22:57 ` Stefan Monnier
2019-05-04 13:32 ` Ergus
2019-05-04 14:03 ` Stefan Monnier
2019-05-04 22:41 ` Emanuel Berg
2019-05-04 22:56 ` Stefan Monnier
2019-05-04 23:19 ` Emanuel Berg
2019-05-05 15:40 ` Stefan Monnier
2019-05-06 6:53 ` tomas
2019-05-06 8:25 ` Emanuel Berg
2019-05-05 0:12 ` 조성빈
2019-05-05 3:15 ` Stefan Monnier
2019-05-05 0:43 ` Ergus
2019-05-05 3:07 ` 조성빈
2019-05-05 15:50 ` Stefan Monnier
2019-05-06 7:33 ` Tadeus Prastowo
2019-05-06 9:03 ` 조성빈
2019-05-06 10:51 ` Tadeus Prastowo
2019-05-06 12:58 ` Ergus
2019-05-06 13:08 ` Stefan Monnier
2019-05-06 16:17 ` Ergus
2019-05-06 17:25 ` Stefan Monnier
2019-05-06 17:45 ` 조성빈
2019-05-06 18:08 ` Stefan Monnier
2019-05-06 18:18 ` 조성빈
2019-05-06 18:47 ` Stefan Monnier
2019-05-06 20:23 ` Ergus
2019-05-06 20:41 ` 조성빈
2019-05-06 21:45 ` Jean-Christophe Helary
2019-05-06 22:03 ` Ergus
2019-05-06 23:07 ` Ergus
2019-05-07 10:49 ` Ergus
2019-05-07 11:51 ` 조성빈
2019-05-07 12:38 ` Ergus
2019-05-07 12:56 ` Stefan Monnier
2019-05-07 13:01 ` 조성빈
2019-05-07 13:04 ` Stefan Monnier
2019-05-07 13:14 ` Ergus
2019-05-07 13:43 ` 조성빈
2019-05-07 14:22 ` Stefan Monnier
2019-05-07 14:41 ` Ergus
2019-05-09 9:49 ` Ergus
2019-05-10 3:20 ` 조성빈
2019-05-10 4:26 ` Ergus
2019-05-10 4:35 ` 조성빈
2019-05-10 8:27 ` tomas
2019-05-07 13:16 ` 조성빈
2019-05-07 13:40 ` Ergus
2019-05-06 20:51 ` Óscar Fuentes
2019-05-07 2:35 ` 조성빈
2019-05-10 5:14 ` Van L
2019-05-06 13:18 ` 조성빈
2019-05-06 13:33 ` Óscar Fuentes
2019-05-06 14:04 ` 조성빈
2019-05-10 7:20 ` Van L
2019-05-10 14:38 ` Lisp, C, and C++ (was: Re: Why is Elisp slow?) Emanuel Berg
2019-05-10 14:49 ` Emanuel Berg
2019-05-06 23:39 ` Why is Elisp slow? Emanuel Berg
2019-05-05 5:25 ` Paul W. Rankin
2019-05-05 13:19 ` Óscar Fuentes
2019-05-05 13:46 ` Ergus
2019-05-06 7:01 ` tomas
2019-05-05 12:51 ` Stefan Monnier
2019-05-10 3:15 ` Van L
2019-05-04 14:10 ` Eli Zaretskii
2019-05-03 12:51 ` Ergus
2019-05-03 13:16 ` 조성빈
2019-05-03 13:32 ` Ergus
2019-05-03 14:04 ` Eli Zaretskii
2019-05-04 0:32 ` Emanuel Berg
2019-05-04 11:29 ` Marcin Borkowski
2019-05-03 1:45 ` Paul W. Rankin
2019-05-03 7:00 ` Eli Zaretskii
2019-05-03 9:58 ` Ergus
2019-05-03 12:41 ` Eli Zaretskii
2019-05-03 22:18 ` Óscar Fuentes
2019-05-04 13:27 ` Ergus
2019-05-04 13:38 ` 조성빈
2019-05-04 0:33 ` Emanuel Berg
2019-05-03 7:08 ` tomas
2019-05-10 13:14 ` Van L
2019-05-10 13:22 ` Michael Heerdegen
2019-05-10 14:44 ` Emanuel Berg
2019-05-11 0:38 ` Emanuel Berg
2019-05-11 1:55 ` Stefan Monnier
2019-05-11 2:16 ` Emanuel Berg
2019-05-11 7:32 ` Is Elisp really that slow? (was: Why is Elisp slow?) tomas
2019-05-11 7:42 ` 조성빈
2019-05-11 7:57 ` tomas
2019-05-11 14:30 ` 조성빈
2019-05-11 17:01 ` tomas
2019-05-11 23:09 ` Emanuel Berg
2019-05-12 7:54 ` tomas
2019-05-12 8:09 ` Emanuel Berg
2019-05-12 9:46 ` 조성빈
2019-05-12 14:21 ` Eli Zaretskii
2019-05-12 14:45 ` Is Elisp really that slow? Óscar Fuentes
2019-05-12 15:28 ` Eli Zaretskii
2019-05-12 15:46 ` Óscar Fuentes
2019-05-12 17:20 ` Eli Zaretskii
2019-05-12 18:37 ` Óscar Fuentes
2019-05-12 18:53 ` Eli Zaretskii
2019-05-13 1:44 ` Emanuel Berg
2019-05-12 21:18 ` Stefan Monnier
2019-05-12 22:22 ` Óscar Fuentes
2019-05-14 13:39 ` Stefan Monnier
2019-05-14 15:09 ` Óscar Fuentes
2019-05-13 0:57 ` Samuel Wales
2019-05-13 12:37 ` Stefan Monnier
2019-05-13 14:23 ` Emanuel Berg
2019-05-13 14:33 ` Emanuel Berg
2019-05-14 8:24 ` tomas
2019-05-14 13:21 ` Emanuel Berg
2019-05-14 14:44 ` tomas
2019-05-15 11:25 ` Emanuel Berg
2019-05-15 12:05 ` tomas
2019-05-15 23:02 ` Emanuel Berg
2019-05-16 6:48 ` tomas
2019-05-16 9:37 ` Noam Postavsky
2019-05-16 11:02 ` tomas
2019-05-23 14:23 ` Emanuel Berg
2019-05-24 1:33 ` Van L
2019-05-16 13:31 ` Eli Zaretskii
2019-05-23 14:28 ` Emanuel Berg
2019-05-23 14:54 ` Drew Adams
2019-05-23 14:55 ` Eli Zaretskii
2019-06-06 5:18 ` Emanuel Berg via help-gnu-emacs
2019-05-16 14:45 ` Stefan Monnier
2019-05-25 4:53 ` Emanuel Berg via help-gnu-emacs
2019-05-13 1:52 ` Emanuel Berg
2019-05-13 1:35 ` Emanuel Berg
2019-05-12 21:01 ` Stefan Monnier
2019-05-13 1:27 ` Emanuel Berg
2019-05-13 14:38 ` Eli Zaretskii
2019-05-13 15:00 ` Emanuel Berg
2019-05-13 15:25 ` Eli Zaretskii
2019-05-14 11:54 ` Emanuel Berg
2019-05-14 16:21 ` Eli Zaretskii
2019-05-14 17:05 ` Emanuel Berg
2019-05-14 18:30 ` Eli Zaretskii
2019-05-15 11:27 ` Emanuel Berg
2019-05-15 14:51 ` Eli Zaretskii
2019-05-16 23:19 ` Emanuel Berg
2019-05-17 6:41 ` Eli Zaretskii
2019-05-13 15:02 ` John Yates
2019-05-13 15:14 ` Eli Zaretskii
2019-05-13 22:40 ` Dmitry Gutov
2019-05-14 6:27 ` Paul W. Rankin
2019-05-14 13:10 ` Emanuel Berg
2019-05-13 15:42 ` Van L
2019-05-17 15:17 ` Ken Goldman
2019-06-04 1:36 ` Emanuel Berg via help-gnu-emacs
2019-05-24 4:28 ` Is Elisp really that slow? (was: Why is Elisp slow?) Xavier Maillard
2019-06-07 19:08 ` Emanuel Berg via help-gnu-emacs
2019-06-08 0:26 ` Samuel Wales
2019-06-08 0:30 ` Samuel Wales
2019-06-08 8:52 ` tomas
2019-06-08 21:00 ` Samuel Wales
2019-06-08 21:14 ` tomas
2019-06-08 21:44 ` Is Elisp really that slow? Óscar Fuentes
2019-06-08 23:29 ` Emanuel Berg via help-gnu-emacs
2019-06-11 4:10 ` Xavier Maillard
2019-06-09 6:46 ` Is Elisp really that slow? (was: Why is Elisp slow?) Eli Zaretskii
2019-06-11 20:23 ` Samuel Wales
2019-06-08 23:26 ` Emanuel Berg via help-gnu-emacs
2019-05-13 6:10 ` Why is Elisp slow? Van L
2019-05-03 6:55 ` Eli Zaretskii
2019-05-03 2:39 ` Stefan Monnier
2019-05-03 6:51 ` Eli Zaretskii
2019-05-02 19:10 ` Marcin Borkowski
2019-05-03 23:34 ` Samuel Wales
2019-05-04 6:19 ` Eli Zaretskii
[not found] ` <mailman.1772.1538855722.1284.help-gnu-emacs@gnu.org>
2018-10-07 12:45 ` Knowing where a function has been used (bis) [Was: Re: Optimising Elisp code] Emanuel Berg
[not found] ` <mailman.1752.1538822765.1284.help-gnu-emacs@gnu.org>
2018-10-07 12:41 ` Knowing where a function has been used (e.g. for optimizing) " Emanuel Berg
2018-10-07 13:46 ` Getting functions usage examples [Was: Re: Knowing where a function has been used (e.g. for optimizing) [Was: Re: Optimising Elisp code]] Garreau, Alexandre
2018-10-08 0:07 ` Van L
2018-10-08 15:40 ` Getting functions usage examples [ Garreau, Alexandre
2018-10-09 9:33 ` Van L
[not found] ` <mailman.1798.1538920786.1284.help-gnu-emacs@gnu.org>
2018-10-07 15:38 ` Getting functions usage examples [Was: Re: Knowing where a function has been used (e.g. for optimizing) [Was: Re: Optimising Elisp code]] Emanuel Berg
[not found] <mailman.2089.1539373965.1284.help-gnu-emacs@gnu.org>
2018-10-13 18:00 ` Optimising Elisp code [again] Emanuel Berg
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