Re: [Qemu-devel] [kvm-unit-tests PATCH 0/2] run_tests: support concurrent test execution

[Peter Xu <peterx@redhat.com>]

On Mon, Jan 02, 2017 at 06:07:56PM +0100, Paolo Bonzini wrote:
> 
> 
> On 01/01/2017 11:34, Peter Xu wrote:
> > run_tests.sh is getting slower. Maybe it's time to let it run faster.
> > An obvious issue is that, we were running the tests sequentially in
> > the past.
> > 
> > This series provides another new "-j" parameter. "-j 8" means we run
> > the tests on 8 task queues. That'll fasten the script a lot. A very
> > quick test of mine shows 3x speed boost with 8 task queues.
> > 
> > Most of the changes are in scripts/tash.bash of patch 2, which
> > implemented the main logic for task managements. Please see commit
> > message for more information.
> > 
> > I did a quick "make standalone" test to make sure this series won't
> > break it. However I am not sure whether it'll break other thing that I
> > don't know...
> 
> Would it work if run_tests.sh wrote a Makefile for all the tests (with
> phony targets only), and then simply ran "make -f Makefile.tmp -jN"?

Would this be a little bit tricky? This version 1 is kind-of overkill
(hundreds of lines of codes), I can make it much shorter if you like
in v2 according to Radim's suggestion.

Thanks,

-- peterx