Hi Stephen,
On Thu, 2 Nov 2000, Stephen C. Tweedie wrote:
> The patch I sent fully implements O_SYNC (actually, it implements
> O_DSYNC, which is allowed to skip the inode sync if the only
> attribute which has changed is the timestamps) and fdatasync. It's
> easy for me to make the DSYNC selectable via sysctl for full SU
> compliance, and I know of other unixes that already do this --- you
> really don't want existing database applications suddenly to start
> seeking to the inode block for every O_SYNC write.
No, we definitely do not want to have that. We had big performance
problems at customer sites when another unix did change the behaviour
exactly that way between releases.
Greetings
Christoph
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