From: Gregory Heytings via "Emacs development discussions." <emacs-devel@gnu.org>
To: "Óscar Fuentes" <ofv@wanadoo.es>
Cc: emacs-devel@gnu.org
Subject: Re: The Emacs master is much slower than the emacs-27 branch.
Date: Sat, 05 Dec 2020 17:21:22 +0000 [thread overview]
Message-ID: <alpine.NEB.2.22.394.2012051815400453.14327@sdf.lonestar.org> (raw)
In-Reply-To: <87o8j8w8yy.fsf@telefonica.net>
>>> (3) I'm yet unsure about -O0 builds. Are they (1)- or (2)-like?
>>
>> Like (2), at least with GCC on 64-bit GNU/Linux. Apparently Eli does
>> not see this on MS-Windows.
>
> -O0 does not observe the "inline" declaration nor does consider "static"
> functions for inlining, so -O0 should be comparable among versions,
> since the "extern inline" -> "static" -> "static inline" changes are not
> considered by -O0.
>
I stand corrected, I mixed things up. The benchmark with GCC 10.2 on
64-bit GNU/Linux gives:
| A | B | C
-Og | ~21s | ~67s | ~25s
-O0 | ~59s | ~63s | ~75s
-O1 | ~17s | ~26s | ~21s
-O2 | ~16s | ~18s | ~20s
-O3 | ~16s | ~17s | ~19s
A = commit 507d5548349540dbde67d3e535a4607fd2207c49 (last with 'extern inline')
B = emacs-27 ('static')
C = master ('static inline')
(Note that the difference between A and C is in part due to the difference
of xdisp.c file length: 33842 for A, 35661 for C.)
In short: the '#define EXTERN_INLINE' changes only affect builds with -Og.
next prev parent reply other threads:[~2020-12-05 17:21 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-03 18:15 The Emacs master is much slower than the emacs-27 branch Alan Mackenzie
2020-12-03 20:17 ` Eli Zaretskii
2020-12-04 9:13 ` Alan Mackenzie
2020-12-03 20:59 ` Mattias Engdegård
2020-12-04 9:24 ` Alan Mackenzie
2020-12-04 10:46 ` Alan Third
2020-12-04 11:07 ` Mattias Engdegård
2020-12-03 21:09 ` Ergus
2020-12-04 9:19 ` Alan Mackenzie
2020-12-03 22:17 ` Stephen Berman
2020-12-04 9:04 ` Alan Mackenzie
2020-12-04 9:32 ` Stephen Berman
2020-12-04 9:53 ` Alan Mackenzie
2020-12-04 10:14 ` Stephen Berman
2020-12-04 11:45 ` Eli Zaretskii
2020-12-04 12:54 ` Stephen Berman
2020-12-04 13:28 ` Eli Zaretskii
2020-12-04 13:53 ` Stephen Berman
2020-12-04 14:05 ` Stephen Berman
2020-12-04 15:51 ` Eli Zaretskii
2020-12-04 16:03 ` Stephen Berman
2020-12-04 16:28 ` Óscar Fuentes
2020-12-04 18:51 ` Eli Zaretskii
2020-12-04 21:37 ` Stephen Berman
2020-12-05 8:05 ` Eli Zaretskii
2020-12-04 16:49 ` Stefan Monnier
2020-12-05 14:04 ` Basil L. Contovounesios
2020-12-05 14:38 ` Stefan Monnier
[not found] ` <837dpxedmz.fsf@gnu.org>
2020-12-04 17:03 ` Stephen Berman
2020-12-04 17:59 ` Stephen Berman
2020-12-04 20:47 ` Óscar Fuentes
2020-12-04 21:33 ` Stephen Berman
2020-12-04 17:07 ` Eli Zaretskii
2020-12-04 19:27 ` Gregory Heytings via Emacs development discussions.
2020-12-04 19:34 ` Stephen Berman
2020-12-04 19:58 ` Eli Zaretskii
2020-12-04 20:33 ` Gregory Heytings via Emacs development discussions.
2020-12-04 20:47 ` Eli Zaretskii
2020-12-04 20:59 ` Gregory Heytings via Emacs development discussions.
2020-12-04 21:02 ` Eli Zaretskii
2020-12-04 21:20 ` Gregory Heytings via Emacs development discussions.
2020-12-05 7:44 ` Eli Zaretskii
2020-12-05 8:14 ` Gregory Heytings via Emacs development discussions.
2020-12-05 8:44 ` Gregory Heytings via Emacs development discussions.
2020-12-05 9:14 ` Eli Zaretskii
2020-12-05 9:20 ` Eli Zaretskii
2020-12-05 9:33 ` Eli Zaretskii
2020-12-05 13:50 ` Basil L. Contovounesios
2020-12-05 14:29 ` Eli Zaretskii
2020-12-05 14:56 ` Ergus
2020-12-05 15:14 ` Eli Zaretskii
2020-12-05 15:29 ` Andrea Corallo via Emacs development discussions.
2020-12-05 15:15 ` Gregory Heytings via Emacs development discussions.
2020-12-05 15:31 ` Óscar Fuentes
2020-12-05 9:05 ` Eli Zaretskii
2020-12-05 9:23 ` martin rudalics
2020-12-05 12:55 ` Gregory Heytings via Emacs development discussions.
2020-12-05 13:41 ` Eli Zaretskii
2020-12-05 15:17 ` Gregory Heytings via Emacs development discussions.
2020-12-05 15:55 ` Eli Zaretskii
2020-12-05 14:47 ` Óscar Fuentes
2020-12-05 15:07 ` martin rudalics
2020-12-05 15:24 ` Gregory Heytings via Emacs development discussions.
2020-12-05 15:36 ` martin rudalics
2020-12-05 15:39 ` Gregory Heytings via Emacs development discussions.
2020-12-05 15:47 ` Óscar Fuentes
2020-12-05 17:21 ` Gregory Heytings via Emacs development discussions. [this message]
2020-12-05 15:57 ` Eli Zaretskii
2020-12-05 16:04 ` Gregory Heytings via Emacs development discussions.
2020-12-05 15:08 ` Eli Zaretskii
2020-12-04 14:55 ` Arthur Miller
2020-12-04 15:00 ` Arthur Miller
2020-12-04 9:59 ` Gregory Heytings via Emacs development discussions.
2020-12-09 4:23 ` andres.ramirez
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