[testsuite, fortran] Increase some timeout factors

[Tobias Burnus]

Rainer Orth wrote:
> I see two fortran testcases that regularly time out on my platforms:
>
> * gfortran.dg/array_constructor_33.f90 always times out on
>    Solaris/SPARC: even on an unloaded machine, it takes over 3 minutes:
>    real        3:05.04   SPARC Enterprise T5220, 1.2 GHz UltraSPARC-T2
>    I'd like to set a timeout factor of 4 to allow for that.
>
> * gfortran.dg/vect/fast-math-pr38968.f90 times out in a very strange
>    way.  I only observe the timeouts on Solaris 10/x86, but as I've
>    found, it has nothing to do with Solaris 10: identical binaries and
>    libraries take 1:30 min on the test machine (the first one), which is
>    a factor of 3 slower than two other machines (either Solaris 10 or
>    11), but with different CPUs:
>
>    real        1:31.91   Sun Fire X4450, 2.93 GHz Intel Xeon X7350
>    real          32.11   Sun Fire X4200, 2.6 Ghz AMD Opteron 285
>    real          33.46   Sun Fire V60x, 2.8 GHz Intel Xeon
>
>    Two other machines running Solaris 11 resp. 9 are in between:
>
>    real          47.43   Sun Fire X4600, 2.6 GHz AMD Opteron 8218
>    real          50.08   Sun Fire V20z, 1.8 GHz AMD Opteron 244
>
>    So this seems to be a problem with this particular CPU; still I'd like
>    to accomodate this range by setting a timeout factor of 2.
>    Only mainline is affected.

That's really odd.

> Ok for mainline (and 4.5 branch for the first)?

OK. Thanks for the effort to reduce the failures.

Tobias