stress2 is now in projects

Kostik Belousov kostikbel at
Sun Jan 18 05:48:17 PST 2009

On Sun, Jan 18, 2009 at 02:10:28PM +0100, Peter Holm wrote:
> On Sun, Jan 18, 2009 at 01:11:25PM +0100, Dag-Erling Sm?rgrav wrote:
> > Peter Holm <pho at> writes:
> > > The key functionality of this test suite is that it runs a random
> > > number of test programs for a random period, in random incarnations
> > > and in random sequence.
> > 
> > In other words, it's non-deterministic and non-reproducable.
> > 
> Yes, by design.
> > You should at the very least allow the user to specify the random seed.
> > 
> Yes, it would be interesting to see if this is enough to reproduce a
> problem in a deterministic way. I'll look into this.

I shall state from my experience using it (or, rather, inspecting bug
reports generated by stress2), that in fact it is quite repeatable.
I.e., when  looking into one area, you almost always get _that_ problem,
together with 2-3 related issues.

Due to the nature of the tests and kernel undeterministic operations,
I think that use of the same random seed gains nothing in regard with
repeatability of the tests.
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