[Bug libfortran/33985] access="stream",form="unformatted" doesn't buffer

[jvdelisle at gcc dot gnu dot org]

------- Comment #29 from jvdelisle at gcc dot gnu dot org  2007-12-02 19:05 -------
gfortran 4.3 with patch:

$ gfc nwrite.f90 
$ time ./a.out

real    0m0.568s
user    0m0.533s
sys     0m0.035s
$ gfc nread.f90 
$ time ./a.out

real    0m0.527s
user    0m0.508s
sys     0m0.019s

gfortran 4.2, no patch:

$ gfc42 -static nwrite.f90 
$ time ./a.out

real    0m6.703s
user    0m1.423s
sys     0m5.280s
$ gfc42 -static nread.f90 
$ time ./a.out

real    0m16.721s
user    0m1.860s
sys     0m14.861s


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33985