Re: Database Kernels and O_DIRECT

Greg Stark wrote:
>
> James Rogers <jamesr(at)best(dot)com> writes:
> > >
> > > Someone from Oracle is on there explaining what Oracle's needs are. Perhaps
> > > someone more knowledgable than myself could explain what would most help
> > > postgres in this area.
> >
> >
> > There is an important difference between Oracle and Postgres that makes
> > discussions of this complicated because the assumptions are different.
>
> All the more reason Postgres's view of the world should maybe be represented
> there. As it turns out Linus seems unsympathetic to the O_DIRECT approach and
> seems more interested in building a better kernel interface to control caching
> and i/o scheduling. Something that fits better with postgres's design than
> Oracle's.

Of course, the big question is why Oracle is even there talking to
Linus, and Linus isn't asking to get PostgreSQL involved. If you are
running an open-source project, you would think you would give favor to
other open-source projects. Same with MySQL favortism --- if you are
writing an open-source tool, why favor a database developed/controlled
by a single company?

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