On Mon, 11 Jan 1999, Stefan Laudat wrote:
> Last evening I've decided to compile a new 2.2.0-pre6 on a Dual
> P][-350, WD SCSI 64Megs etc. It took me about 7 minutes, with the
> _existing_SMP_ 2.2.0-pre6. I have a K62/350 at home and it compiles
> the same kernel with _almost_ the same options in _almost_ the same time :(
> Do I have to get a different egcs/gcc in order to use both processors
> when compiling something or are there exxxtra options in order to enable
> some SMP extra stuff? I have to mention that a cat /proc/cpuinfo shows
> both processors so it has to be okay...
To make use of both processors in compiling, add
MAKE="make -j 3"
at the end of any make commands you run. For example:
make zImage MAKE="make -j 3"
make modules MAKE="make -j 3"
etc.
The "3" is the number of simultaneously executed commands; I
suggest putting this at your number of processors +1. This does a pretty
good job of keeping your CPU's busy even when one of those gcc's is
waiting on disk I/O.
> Sorry if I am lame :)
Not at all; we all have to learn sometime. Cheers,
- Bill
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Unix _is_ user friendly. It's just very selective about who its friends
are. And sometimes even best friends have fights.
William Stearns (wstearns@pobox.com)
Mason, Buildkernel, and named2hosts are at: http://www.pobox.com/~wstearns
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