Building Kernel and World with -j

[tech-lists]

On 23/01/2017 06:57, Walter Parker wrote:
> Hi,
> 
> For decades there has always been a warning not to do parallel builds of
> the kernel or the world (Linux kernel builds also suggest not to do this).
> 
> Every once in a while, I see people post about 5 minutes. This only way I
> can see this happening is by doing a parallel build (-j 16 on a Xeon
> Monster box).
> 
> Are parallel builds safe? If not, what are actual risk factors and can they
> be mitigated?

I remember warnings to the effect that while buildworld and buildkernel
was safe, installworld and installkernel were not.

I use -j32 on i7 monster boxes.

-- 
J.