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[Bug libfortran/33985] access="stream",form="unformatted" doesn't buffer
- From: "kargl at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 1 Dec 2007 22:08:25 -0000
- Subject: [Bug libfortran/33985] access="stream",form="unformatted" doesn't buffer
- References: <bug-33985-10391@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #22 from kargl at gcc dot gnu dot org 2007-12-01 22:08 -------
(In reply to comment #19)
> I don't see the "Are we lucky and avoid syscall?" hack in the fd_seek
> routine from unix.c of the gcc 4.0 branch. So one could argue that it was a
> performance regression introduced in gcc 4.1.
>
Stream IO first appeared in 4.2. I'd find it highly unlikely that
you'ld find this in 4.1. Now, as I said, this isn't a regression.
It is not a candidate for backporting!
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33985