Re: Time to start the PR machine

On Friday 30 September 2005 21:14, Alvaro Herrera wrote:
> On Fri, Sep 30, 2005 at 04:13:45PM -0400, Robert Treat wrote:
> > On Fri, 2005-09-30 at 13:31, Joshua D. Drake wrote:
> > > Shared Row Locking: PostgreSQL's "better than row-level
> > > locking" has been improved further through the addition of
> > > shared row locks for foreign keys.  Shared locks will improve
> > > insert and update performance on some OLTP applications
> > >             ^^^^
> > >
> > > The word "some" sounds like it is a minority of OLTP applications.
> > > In general any moderately used OLTP app will benifit from this yes?
> > >
> > > many, most, or just say performance on OLTP applications.
> >
> > well, it will really only help on those systems that were stressing out
> > our current design (and thats really hardware dependent too) so maybe
> > "busy", "heavy","high load" or just  "on OLTP applications".
>
> It will help applications that use foreign keys extensively.  Do "most
> OLTP apps" do that?  I guess any reasonably implemented app should.

ISTM it depends on how you define help.  If your running an OLTP system on
current releases, and you dont have performance/deadlock issues, then this
isn't going to do much for you.

--
Robert Treat
Build A Brighter Lamp :: Linux Apache {middleware} PostgreSQL