From: "Óscar Fuentes" <ofv@wanadoo.es>
To: emacs-devel@gnu.org
Subject: Re: Migrating to sourcehut - what's missing?
Date: Thu, 23 Dec 2021 10:11:23 +0100 [thread overview]
Message-ID: <87czlnwuro.fsf@telefonica.net> (raw)
In-Reply-To: 83czlnx1vk.fsf@gnu.org
Eli Zaretskii <eliz@gnu.org> writes:
>> From: Óscar Fuentes <ofv@wanadoo.es>
>> Date: Wed, 22 Dec 2021 21:14:37 +0100
>>
>> Eli Zaretskii <eliz@gnu.org> writes:
>>
>> >> The Emacs build has several parts with no paralellization. In my humble
>> >> 8-thread machine most of the 4.5 minutes it takes to build (without
>> >> native-comp) only one thread is active, and today's CPUs are not much
>> >> faster than mine doing single-threaded tasks.
>> >
>> > If you have 8 threads, why don't you use "make -j8"?
>>
>> That's what I use.
>>
>> > Then most of the time you'd see 8 compilation processes run in
>> > parallel.
>> >
>> > That's what I see here.
>>
>> Probably you are talking about an incremental build.
>
> No, I'm talking about a fresh build, or bootstrap, or a build after
> all the *.elc files have been deleted.
If I execute
rm -rf * && time make bootstrap -j9
on the build directory, it takes 1m28s. If I go to the source directory
and:
git clean -fdx && ./autogen.sh
then go back to the build directory and:
rm -rf * && time ../emacs/configure --without-toolkit-scroll-bars --with-x-toolkit=lucid --with-modules --without-imagemagick
20s
time make -j9
4m9s
Apart from the configure script and dumping, the bulk of the time the
build is running single-threaded is while doing:
INFO Processing OKURI-NASI entries...
and even longer:
INFO Scraping files for loaddefs.el...
BTW, this is in Debian Testing.
> The only single-threaded parts I see is (a) the configure script (and
> autogen.sh, if that needs to be run), and (b) the link stage of the
> Emacs executable. Everything else runs in parallel, and if I says
> "make -j8" I see load-average show numbers around 8 most of the time
> on the mode line.
Try building after `git clean -fdx'.
next prev parent reply other threads:[~2021-12-23 9:11 UTC|newest]
Thread overview: 102+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-21 12:51 Migrating to sourcehut - what's missing? Theodor Thornhill
2021-12-21 17:32 ` Stefan Kangas
2021-12-21 18:30 ` Theodor Thornhill
2021-12-21 18:58 ` Eric Abrahamsen
2021-12-21 21:24 ` Philip Kaludercic
2021-12-21 21:29 ` Theodor Thornhill
2021-12-21 21:41 ` Eric Abrahamsen
2021-12-21 21:42 ` Philip Kaludercic
2021-12-21 22:02 ` Theodor Thornhill
2021-12-21 22:28 ` Theodor Thornhill
2021-12-21 22:43 ` Philip Kaludercic
2021-12-21 23:24 ` Theodor Thornhill
2021-12-22 8:04 ` tomas
2021-12-22 9:40 ` Po Lu
2021-12-22 10:01 ` tomas
2021-12-22 15:40 ` Stefan Kangas
2021-12-22 11:57 ` Lars Ingebrigtsen
2021-12-22 12:19 ` Po Lu
2021-12-22 12:58 ` Theodor Thornhill
2021-12-22 13:01 ` Po Lu
2021-12-22 13:03 ` Theodor Thornhill
2021-12-22 13:05 ` Lars Ingebrigtsen
2021-12-22 13:11 ` Theodor Thornhill
2021-12-22 13:17 ` Lars Ingebrigtsen
2021-12-22 13:22 ` Theodor Thornhill
2021-12-22 13:28 ` Lars Ingebrigtsen
2021-12-22 16:53 ` Stefan Kangas
2021-12-22 16:57 ` Theodor Thornhill
2021-12-22 13:38 ` Lars Ingebrigtsen
2021-12-22 13:43 ` Theodor Thornhill
2021-12-22 13:47 ` Lars Ingebrigtsen
2021-12-22 13:53 ` Theodor Thornhill
2021-12-22 14:00 ` Lars Ingebrigtsen
2021-12-22 14:07 ` Theodor Thornhill
2021-12-22 17:30 ` Lars Ingebrigtsen
2021-12-22 17:34 ` Lars Ingebrigtsen
2021-12-22 19:08 ` Óscar Fuentes
2021-12-22 19:18 ` Lars Ingebrigtsen
2021-12-22 19:45 ` Óscar Fuentes
2021-12-22 19:58 ` Lars Ingebrigtsen
2021-12-22 19:20 ` Eli Zaretskii
2021-12-22 20:14 ` Óscar Fuentes
2021-12-23 6:37 ` Eli Zaretskii
2021-12-23 7:37 ` Lars Ingebrigtsen
2021-12-23 9:11 ` Óscar Fuentes [this message]
2021-12-22 14:10 ` Lars Ingebrigtsen
2021-12-22 15:40 ` Stefan Kangas
2021-12-23 3:43 ` Richard Stallman
2021-12-22 15:02 ` Theodor Thornhill
2021-12-22 13:49 ` Jean-Christophe Helary
2021-12-22 12:58 ` Theodor Thornhill
2021-12-23 8:40 ` Lars Ingebrigtsen
2021-12-23 8:53 ` Theodor Thornhill
2021-12-23 9:00 ` Lars Ingebrigtsen
2021-12-25 16:20 ` Stefan Kangas
2021-12-26 2:07 ` Po Lu
2021-12-26 11:29 ` Lars Ingebrigtsen
2021-12-23 9:15 ` Eli Zaretskii
2021-12-23 9:22 ` Theodor Thornhill
2021-12-23 9:53 ` Eli Zaretskii
2021-12-23 10:01 ` Theodor Thornhill
2021-12-23 14:24 ` Philip Kaludercic
2021-12-23 14:28 ` Theodor Thornhill
2021-12-24 1:29 ` Sean Whitton
2021-12-24 8:32 ` Drew DeVault
2021-12-22 15:11 ` Eli Zaretskii
2021-12-22 15:14 ` Lars Ingebrigtsen
2021-12-22 16:35 ` Eli Zaretskii
2021-12-22 16:37 ` Lars Ingebrigtsen
2021-12-22 16:43 ` Theodor Thornhill
2021-12-22 15:16 ` Theodor Thornhill
2021-12-22 15:22 ` Dmitry Gutov
2021-12-22 15:45 ` Theodor Thornhill
2021-12-22 16:11 ` Dmitry Gutov
2021-12-22 16:07 ` Stefan Kangas
2021-12-22 16:16 ` Lars Ingebrigtsen
2021-12-22 17:23 ` Eli Zaretskii
2021-12-22 16:44 ` Eli Zaretskii
2021-12-22 22:16 ` Dmitry Gutov
2021-12-28 17:01 ` Eli Zaretskii
2021-12-29 1:57 ` john muhl
2021-12-22 16:39 ` Eli Zaretskii
2021-12-21 21:39 ` john muhl
2021-12-21 21:48 ` Philip Kaludercic
2021-12-21 21:42 ` Stefan Kangas
2021-12-21 21:45 ` Eric Abrahamsen
2021-12-21 19:52 ` Sean Whitton
2021-12-21 20:30 ` Theodor Thornhill
2021-12-21 21:28 ` Theodor Thornhill
2021-12-21 21:42 ` Stefan Kangas
2021-12-21 22:00 ` Theodor Thornhill
2021-12-22 4:16 ` Richard Stallman
2021-12-22 6:28 ` Theodor Thornhill
2021-12-22 7:30 ` Theodor Thornhill
2021-12-22 10:25 ` Joost Kremers
2021-12-22 10:41 ` Theodor Thornhill
-- strict thread matches above, loose matches on Subject: below --
2021-12-21 20:32 Vitaly Ankh
2021-12-21 21:09 ` Stefan Kangas
2021-12-22 4:16 ` Richard Stallman
2021-12-21 21:54 xenodasein--- via Emacs development discussions.
2021-12-21 22:08 ` Philip Kaludercic
2021-12-21 23:00 ` xenodasein--- via Emacs development discussions.
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