Tom,
> There's not any special smarts for seqscans, but the counter should
> handle that.
So all pages start out with the same counter, except VACUUM tuples?
BTW, I found this paper on RDBMS memory management, which probably could have
saved us some weeks of discussion:
http://www.cs.usask.ca/~
Tom, Neil,
> > Oh, and incidentally, can I use the same database files for 8.0.2 and
> > 8.1cvs 3/10/05?
>
> Sorry, we forced initdb already several times...
D'oh. Better see if I can get a second machine, then, since build of a 100G
DBT3 database takes 20 hours.
--
Josh Berkus
Aglio Database
Josh Berkus writes:
> Now that I'm beginning serious performance testing of clock-sweep, I
> was going back through the lock discussion and am not sure what the
> patch that actually went in 3 weeks ago consisted of. Is it
> clock-sweep with a used/unused bit or a counter? How is it handling
> s
Josh Berkus wrote:
Oh, and incidentally, can I use the same database files for 8.0.2 and 8.1cvs
3/10/05?
No.
-Neil
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Tom,
Now that I'm beginning serious performance testing of clock-sweep, I was going
back through the lock discussion and am not sure what the patch that actually
went in 3 weeks ago consisted of. Is it clock-sweep with a used/unused bit
or a counter? How is it handling seq scans?
Oh, and i
