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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: 30 May 2005 14:58:30 -0000
- Subject: [Bug libfortran/21820] Really, really, horrible IO performance
- References: <20050530143227.21820.kargl@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From sgk at troutmask dot apl dot washington dot edu 2005-05-30 14:58 -------
Subject: Re: Really, really, horrible IO performance
On Mon, May 30, 2005 at 02:49:04PM -0000, pinskia at gcc dot gnu dot org wrote:
>
> I cannot reproduce this on either powerpc-darwin or i686-pc-linux-gnu,
> what target are you using?
>
i386-*-freebsd and amd64-*-freebsd. The i386 system
is using softupdates on a UFS1 filesystem. The amd64
system is using softupdates on a UFS2 filesystem. This
certainly can be a OS dependent problem, and I would
guess it may affect OpenBSD and NetBSD.
Note, the use of O_TRUNC on replacing a file should
not hurt performance on other OS's.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21820