GNU bug report logs - #72921
Building emacs-yaml with emacs takes approximately eternity

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Tomas Volf <~@wolfsden.cz>
To: bug-guix <at> gnu.org
Subject: Building emacs-yaml with emacs takes approximately eternity
Date: Sat, 31 Aug 2024 23:01:03 +0200

[Message part 1 (text/plain, inline)]

The emacs-yaml package is configured to build against emacs-minimal,
which seems to work.  When you however switch to emacs package, it takes
way to long to build, much longer than compiling for example firefox
package.  That feels off.

--8<---------------cut here---------------start------------->8---
$ time guix time-machine -q --commit=b8327cb31199fb9f4ebed6c53a59601d41def5a1 -- build --check --no-grafts -q --with-input=emacs-minimal=emacs-minimal emacs-yaml
/gnu/store/8lqdd8yna92zqgsgip396a1wbyhr5pfn-emacs-yaml-0.5.5
12.573 secs
$ time guix time-machine -q --commit=b8327cb31199fb9f4ebed6c53a59601d41def5a1 -- build --check --no-grafts -q --with-input=emacs-minimal=emacs emacs-yaml
/gnu/store/ja9xfndhfafjczp6n7qfy1h21hvdpd5j-emacs-yaml-0.5.5
2869.878 secs
--8<---------------cut here---------------end--------------->8---

The difference is huge.  The process taking vast majority of the time
(in the emacs version) is this one:

--8<---------------cut here---------------start------------->8---
32393 guixbuil 47:10 {.emacs-29.4-rea} /gnu/store/y7yhpgi48klqpadrmfknl4bln9c4n05y-emacs-29.4/bin/emacs -no-comp-spawn -Q --batch -l /tmp/guix-build-emacs-yaml-0.5.5.drv-0/emacs-int-comp-yaml-pbHFU3.el
--8<---------------cut here---------------end--------------->8---

I do not know enough to even guess what could be the problem, but it was
suggested I should bug-report this.

Cheers,
Tomas

-- 
There are only two hard things in Computer Science:
cache invalidation, naming things and off-by-one errors.

[signature.asc (application/pgp-signature, inline)]

Message #8 received at 72921 <at> debbugs.gnu.org (full text, mbox):

From: Liliana Marie Prikler <liliana.prikler <at> gmail.com>
To: Tomas Volf <~@wolfsden.cz>, 72921 <at> debbugs.gnu.org
Subject: Re: Building emacs-yaml with emacs takes approximately eternity
Date: Sun, 01 Sep 2024 08:45:50 +0200

Am Samstag, dem 31.08.2024 um 23:01 +0200 schrieb Tomas Volf:
> The emacs-yaml package is configured to build against emacs-minimal,
> which seems to work.  When you however switch to emacs package, it
> takes way to long to build, much longer than compiling for example
> firefox package.  That feels off.
> 
> --8<---------------cut here---------------start------------->8---
> $ time guix time-machine -q --
> commit=b8327cb31199fb9f4ebed6c53a59601d41def5a1 -- build --check --
> no-grafts -q --with-input=emacs-minimal=emacs-minimal emacs-yaml
> /gnu/store/8lqdd8yna92zqgsgip396a1wbyhr5pfn-emacs-yaml-0.5.5
> 12.573 secs
> $ time guix time-machine -q --
> commit=b8327cb31199fb9f4ebed6c53a59601d41def5a1 -- build --check --
> no-grafts -q --with-input=emacs-minimal=emacs emacs-yaml
> /gnu/store/ja9xfndhfafjczp6n7qfy1h21hvdpd5j-emacs-yaml-0.5.5
> 2869.878 secs
> --8<---------------cut here---------------end--------------->8---
> 
> The difference is huge.  The process taking vast majority of the time
> (in the emacs version) is this one:
> 
> --8<---------------cut here---------------start------------->8---
> 32393 guixbuil 47:10 {.emacs-29.4-rea}
> /gnu/store/y7yhpgi48klqpadrmfknl4bln9c4n05y-emacs-29.4/bin/emacs -no-
> comp-spawn -Q --batch -l /tmp/guix-build-emacs-yaml-0.5.5.drv-
> 0/emacs-int-comp-yaml-pbHFU3.el
> --8<---------------cut here---------------end--------------->8---
> 
> I do not know enough to even guess what could be the problem, but it
> was suggested I should bug-report this.
This issue has already been reported updstream [1], but not addressed
yet: What takes so long between emacs-minimal and plain emacs is the
fact that plain emacs does native compilation.  

emacs-build-system currently uses native compilation whenever that is
supported by the emacs used to build.  Perhaps we should allow for some
choice here – ideas welcome.

Cheers

[1] https://github.com/zkry/yaml.el/issues/53

Message #11 received at 72921 <at> debbugs.gnu.org (full text, mbox):

From: Fredrik Salomonsson <plattfot <at> posteo.net>
To: 72921 <at> debbugs.gnu.org
Subject: Building emacs-yaml with emacs takes approximately eternity
Date: Sat, 10 May 2025 23:21:45 +0000

Hi,

I have been putting off building emacs-forge with emacs-pgtk due to it
having emacs-yaml as a dependency.  I just checked the link to the
upstream issue [0] and it's now be fixed and released in v1.2.0!  Which
is in Guix.

I verified it by building emacs-forge (and emacs-yaml) and it built
within reasonable time.  So this issue can be closed.

[0] https://github.com/zkry/yaml.el/issues/53

-- 
s/Fred[re]+i[ck]+/Fredrik/g

Message #16 received at 72921-done <at> debbugs.gnu.org (full text, mbox):

From: Nicolas Graves <ngraves <at> ngraves.fr>
To: Fredrik Salomonsson <plattfot <at> posteo.net>, 72921-done <at> debbugs.gnu.org
Subject: Re: bug#72921: Building emacs-yaml with emacs takes approximately
 eternity
Date: Sun, 11 May 2025 11:39:35 +0200

Closing it then!

Notice the -done that does the job ;)

On 2025-05-10 23:21, Fredrik Salomonsson wrote:

> Hi,
>
> I have been putting off building emacs-forge with emacs-pgtk due to it
> having emacs-yaml as a dependency.  I just checked the link to the
> upstream issue [0] and it's now be fixed and released in v1.2.0!  Which
> is in Guix.
>
> I verified it by building emacs-forge (and emacs-yaml) and it built
> within reasonable time.  So this issue can be closed.
>
> [0] https://github.com/zkry/yaml.el/issues/53

-- 
Best regards,
Nicolas Graves

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