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[Bug libfortran/21820] Really, really, horrible IO performance
- From: "sgk at troutmask dot apl dot washington dot edu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 9 Dec 2005 15:09:19 -0000
- Subject: [Bug libfortran/21820] Really, really, horrible IO performance
- References: <bug-21820-10110@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #18 from sgk at troutmask dot apl dot washington dot edu 2005-12-09 15:09 -------
Subject: Re: Really, really, horrible IO performance
On Fri, Dec 09, 2005 at 09:24:29AM -0000, fxcoudert at gcc dot gnu dot org
wrote:
> On this one, we now (due to Janne's array I/O transfer) perform better
> than Intel and Portland compilers (on i686-linux, ext3 filesystem). I
> think this can be closed as dup of 16339. For formatted I/O performance,
> we have PR 20278.
IIRC, Janne's patch did not deal with IO that involves implied-do
loops. I'll check this later today.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21820