SMP Strangeness
David Gibson
david at gibson.dropbear.id.au
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 cray.com.au) 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 gibson.dropbear.id.au | solution which is simple, neat and
| wrong. -- H.L. Mencken
http://www.ozlabs.org/people/dgibson
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