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#1 2014-03-12 12:07:00
- cgo
- Member
- From: Paris, France
- Registered: 2010-11-05
- Posts: 22
[solved] make -j (parallel jobs) in PKGBUILD ?
Hi,
I just rediscovered option -j in make, that lets make runs parallel jobs. On my computer (4 cores, ssd), it speeds up things.
I was wondering if it was clean/permitted/a good idea to use this in PKGBUILDs, by automatically adjusting the -j parameter to the number of cores, or half the number of cores ?
Cheers,
Charles
Last edited by cgo (2014-03-12 12:48:45)
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#2 2014-03-12 12:10:03
- Trilby
- Inspector Parrot
- Registered: 2011-11-29
- Posts: 30,344
- Website
Re: [solved] make -j (parallel jobs) in PKGBUILD ?
This should not be added to PKGBUILDs. Makepkg already sets this if the user has opted for it in /etc/makepkg.conf. If you try to override this you will be using a setting that works best on your machine to override a setting the user has found works best on their own machine.
For your own use, just set -j4 in makepkg.conf on your system.
Last edited by Trilby (2014-03-12 12:11:04)
"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman
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#3 2014-03-12 12:47:59
- cgo
- Member
- From: Paris, France
- Registered: 2010-11-05
- Posts: 22
Re: [solved] make -j (parallel jobs) in PKGBUILD ?
Hi,
thanks, I should have checked in makepkg.conf (MAKEFLAGS option).
It's great it already exists !
Enjoy,
Charles
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#4 2014-03-12 12:48:09
- portix
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- Registered: 2009-01-13
- Posts: 757
Re: [solved] make -j (parallel jobs) in PKGBUILD ?
There is one exception, -j1 can be used in a PKGBUILD to limit the number of threads, e.g. if the build fails due to some race conditions in the build process.
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#5 2014-03-12 13:00:11
- Allan
- Pacman
- From: Brisbane, AU
- Registered: 2007-06-09
- Posts: 11,510
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Re: [solved] make -j (parallel jobs) in PKGBUILD ?
There is one exception, -j1 can be used in a PKGBUILD to limit the number of threads, e.g. if the build fails due to some race conditions in the build process.
There is even an option.... Add options=('!makeflags') to the PKGBUILD
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#6 2025-02-19 11:50:58
- bjourne
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- Registered: 2021-03-11
- Posts: 13
Re: [solved] make -j (parallel jobs) in PKGBUILD ?
This should not be added to PKGBUILDs. Makepkg already sets this if the user has opted for it in /etc/makepkg.conf. If you try to override this you will be using a setting that works best on your machine to override a setting the user has found works best on their own machine.
For your own use, just set -j4 in makepkg.conf on your system.
For setting it for a specific user you should instead modify ~/.config/pacman/makepkg.conf.
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#7 2025-02-19 13:47:31
- Trilby
- Inspector Parrot
- Registered: 2011-11-29
- Posts: 30,344
- Website
Re: [solved] make -j (parallel jobs) in PKGBUILD ?
Yes, but that feature has not been temporally back-ported to 11 years ago.
#RetconMakepkg
Last edited by Trilby (2025-02-19 13:48:57)
"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman
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#8 2025-02-20 10:21:31
- Lone_Wolf
- Administrator
- From: Netherlands, Europe
- Registered: 2005-10-04
- Posts: 13,465
Re: [solved] make -j (parallel jobs) in PKGBUILD ?
Please don't necro-bump
Closing this thread.
Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.
clean chroot building not flexible enough ?
Try clean chroot manager by graysky
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