On Tue, Apr 03, 2012 at 11:31:13AM +1000, Simon Burge wrote: > There used to be a test in regress/lib/libc/randomid/idtest.c but I > can't seem to locate that in the current source tree. That tested for > duplicate random numbers within a given number of calls to randomid(). > > I'm sure that test could be adapted for this srandom/random test case as > well.
It is still there; tests/lib/libc/gen/t_randomid.c. So some duplicate tests, but shouldn't matter that much. On Fri, Mar 30, 2012 at 02:05:03PM +0400, Aleksej Saushev wrote: > I don't think Marsaglia tests fit well operating system testing. Why not? While of course RNGs may vary in their purposes, I don't see any other way but statistical sampling to test the suitability of particularly hardware RNGs that already are present in the tree. But maybe I am not thinking too hard. - Jukka.