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Re: Kernel building question (Is -j8 safe and correct?)



On Fri, 2021-06-11 at 19:34 -0600, Antonio Russo wrote:
> Hello,
> 
> I'm trying to build a Debian bullseye kernel (with KASAN enabled, but that's irrelevant).
> I'm following [1], and the critical command
> 
> $ fakeroot make -f debian/rules.gen binary-arch_i386_none_real
> 
> does not suggest using -j8 (or -jnumber_of_cores).
> 
> 1. Is it safe to add -j8 ?

Yes.

> 2. Will this indeed give me the speed up I want and expect on my multi-core processor?

Yes.

> 3. If both of the above are true, why isn't something like that suggested on [1]?

Because no-one thought to add them yet.

Please report this as a bug in the "kernel-handbook" package (which is
the source for this web site).  If you can provide a patch, that would
be even better.

Ben.

> Best,
> Antonio
> 
> [1] https://kernel-team.pages.debian.net/kernel-handbook/ch-common-tasks.html#s-common-official
> 

-- 
Ben Hutchings
We get into the habit of living before acquiring the habit of thinking.
                                                         - Albert Camus

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