Arch Linux

dyscoria

Member

Registered: 2008-01-10

Posts: 1,007

Makeflags

Using -j3 is recommended for a dual core CPU, but how about when running 32bit Arch Linux on a dual core setup?

Thanks.

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flack 2.0.6: menu-driven BASH script to easily tag FLAC files (AUR)
knock-once 1.2: BASH script to easily create/send one-time sequences for knockd (forum/AUR)

Allan

Pacman

From: Brisbane, AU

Registered: 2007-06-09

Posts: 11,487

Website

Re: Makeflags

Why would it make a difference?  Do you understand what that flag does?

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PGP Key: F99FFE0FEAE999BD | I develop pacman - buy me a drink!

karol

Archivist

Registered: 2009-05-06

Posts: 25,440

Re: Makeflags

IIRC if you're running kernel26-ck you should use number of cores, not number of cores + n.

jakobm

Member

Registered: 2008-03-24

Posts: 132

Re: Makeflags

From the Gentoo handbook:

With MAKEOPTS you define how many parallel compilations should occur when you install a package. A good choice is the number of CPUs (or CPU cores) in your system plus one, but this guideline isn't always perfect.

The make man-page:

-j [jobs], --jobs[=jobs]
Specifies the number of jobs (commands) to run simultaneously.

It simply modifies the way how make runs its job. It has no effect whatsoever on compilation results (e.g. architecture optimisation).

dyscoria

Member

Registered: 2008-01-10

Posts: 1,007

Re: Makeflags

Hehe cheers guys, looks like I had a dumb moment there

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flack 2.0.6: menu-driven BASH script to easily tag FLAC files (AUR)
knock-once 1.2: BASH script to easily create/send one-time sequences for knockd (forum/AUR)