[Bug libfortran/23363] gfortran 30 x slower that g77 on random I/O

[kargl at gcc dot gnu dot org]

------- Additional Comments From kargl at gcc dot gnu dot org  2005-08-15 17:03 -------
I think this many be a duplicate of PR 21820.  Also, there
has been some discussion in the fortran@ list about gfortran's
(homebrewed) internal buffering.  FWIW, if you have pre-existing
files that you want to overwrite, then use status='replace' in
your open statement or delete the file before you run your
program.  If you're performing random access in a file you 
want to keep, then I think we're basically screwed until we
overhaul the IO subsystem.

Bugmeister, can we create a meta-bug linking 21820 and this
bug report.  21820 has an attempted analysis of the problem;
while Dale has provided a few useful programs.

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                 CC|                            |kargl at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23363