Improving the speed of make test

[Andrew Bartlett]

On Mon, 2012-03-05 at 14:50 -0800, Matthieu Patou wrote:
> On 03/05/2012 12:23 AM, Volker Lendecke wrote:
> > On Mon, Mar 05, 2012 at 06:36:57PM +1100, Andrew Bartlett wrote:
> >> Jelmer and others interested in selftest:
> >>
> >> A while back, I started doing some profiling to determine where the time
> >> is spent in 'make test', using 'perf'.
> >>
> >> I was surprised to find that 15% of our time is spent in routines
> > Is that total time or CPU time? Quite some of the tests in
> > the file server area look at or depend on timeout behaviour.
> > The tests for share modes for example come to mind. With
> > some care (independent file names), they could probably very
> > well run in parallel and gain quite a bit of total time.
> I suggested here :https://bugzilla.samba.org/show_bug.cgi?id=8582
> 
> that we run tests in environment in parallel (ie. samba3.* tests while 
> doing samba4.* dc  and samba4 fl2000, ...) on machines with more that 2 
> cores this could prove to be very valuable I'm sure.

One of the big challenges is that the tests no longer split up as easily
as samba3 and samba4.  A number of samba3 tests now run against Samba4
environments, and samba4 tests against samba3 environments.  some
environments also depend on each other. 

Andrew Bartlett

-- 
Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org