Head broken again

[Simon Marlow]

Manuel M T Chakravarty wrote:

>> Right now the fast testsuite doesn't have zero failures (it has about 
>> 20), we'll need to get that down to zero first.  The fast testsuite 
>> currently runs in about 8 minutes on a fast Linux machine; it was 
>> about 5 minutes when I first did it, so we probably need some tuning 
>> there.  I have no idea why the build is currently slower than it was 
>> (indeed I wasn't aware that it was), so we should look into that too.
> 
> BTW, does the testsuite work with -j2 or similar?  It's something that 
> very obviously would benefit from multiple cores.

Yes, allegedly:

   make THREADS=2

should run tests in parallel on a dual-core.  I haven't tried this, the code was 
contributed by Esa Ilari Vuokko a while back.

> Generally, it'd be great if the validate script would by default or as 
> an option use parallel builds.

Absolutely.

Cheers,
	Simon