On Tue, 2021-08-31 at 21:16 -0700, Andres Freund wrote:
> On 2021-09-01 05:39:14 +0200, Laurenz Albe wrote:
> > On Tue, 2021-08-31 at 18:55 -0700, Andres Freund wrote:
> > > > > On Tue, Aug 31, 2021 at 04:55:35AM +0200, Laurenz Albe wrote:In the
> > > > > view of that, how about doubling PGSTAT_STAT_INTERVAL to 1000
> > > > > milliseconds?  That would mean slightly less up-to-date statistics, 
> > > > > but
> > > > > I doubt that that will be a problem.
> > > 
> > > I think it's not helpful. Still increases the number of messages 
> > > substantially in workloads
> > > with a lot of connections doing occasional queries. Which is common.
> > 
> > How come?  If originally you send table statistics every 500ms, and now you 
> > send
> > table statistics and session statistics every second, that should amount to 
> > the
> > same thing.  Where is my misunderstanding?
> 
> Consider the case of one query a second.

I guess I am too stupid.  I don't see it.

Yours,
Laurenz Albe



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