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[Bug fortran/53950] 1.5 times slowdown from 4.4.0 to 4.7.0
- From: "kapojko at yahoo dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 13 Jul 2012 12:39:05 +0000
- Subject: [Bug fortran/53950] 1.5 times slowdown from 4.4.0 to 4.7.0
- Auto-submitted: auto-generated
- References: <bug-53950-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53950
--- Comment #4 from Yury Kapoyko <kapojko at yahoo dot com> 2012-07-13 12:39:05 UTC ---
I agree with you. This buf refers to mingw, I think, it could be closed.
Unfortunately, real application slows down to 30 times! But it's very hard to
"extract" bug from there because it is rather complicated and multi-threaded.
Also I have no profilers for Windows except gprof which is useless here.
Compiled on Fedora (GCC 4.6.3) application works fine.
I assume that the problem is with libgfortran, because if I run old application
(compiled with GCC 4.4.0), but with new gfortran.dll in PATH it works exactly
as bad, as new one.