SMP Strangeness

David Gibson david at
Fri Jun 28 15:12:09 EST 2002

On Fri, Jun 28, 2002 at 03:05:35PM +1000, Matthew Hawkins wrote:
> Brett Worth (brettw at wrote:
> > I've just run some very rudimentary performance testing on a server in our
> > office and see some poor SMP results.  Can anyone suggest why?
> IIRC the current kernel build system isn't set up to use GNU make's job
> concurrency thing.  That's one reason why various people are rewriting
> it.

Well, it's not ideally set up for the job concurrency thing, but it's
not terrible either.  Running make -j<number of processors + 1 or 2>
should give a big speedup.

David Gibson			| For every complex problem there is a
david at	| solution which is simple, neat and
				| wrong.  -- H.L. Mencken

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