Re: Free Space Map thoughts

On Fri, 2007-11-09 at 09:39 +0000, Heikki Linnakangas wrote:
> Simon Riggs wrote:
> > On Thu, 2007-11-08 at 23:04 +0000, Gregory Stark wrote:
> >> "Simon Riggs" <simon@2ndquadrant.com> writes:
> >>
> >>> The pages might well be in cache, so the file location might well be
> >>> irrelevant from an I/O perspective. Maybe. The nth page solution allows
> >>> the FSM block to be easily located without any FSM index, so might well
> >>> be faster. Separate files mean more space and more fsyncs too. But even
> >>> so, I'm not sure either way.
> >> I don't follow any of the logical leaps in this paragraph. 
> > 
> > I asked Heikki to explain why he felt the design should go a certain
> > way, which he didn't do. That's the logical leap I'm worried about.
> 
> Well, it's just intuition at this point.

And yours is usually very good, I would be the first to applaud.

--  Simon Riggs 2ndQuadrant  http://www.2ndQuadrant.com