On Fri, 22 Oct 1999 08:54:27 -0500, Ron Flory <ron.flory@adtran.com>
said:
> Under 2.0.3x, 'make -j25' really hauled ass (just over a minute).
> 2.2.x seems to have restructured the makefiles so the kernel build
> process leaves most of my CPU's idle, and seems to take forever. When
> compiling, any time the 'percent-idle' is not 0, is wasted time.
make -j5 "MAKE=make -j5"
will propagate the recursive make flags down to the sub-makes if that
is what you want. It gives me close to 380% CPU utilisation over the
whole kernel build on a 4-way box (400% isn't possible because the
slow, final compress-and-link stage is serialised).
--Stephen
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