Re: Expose JIT counters/timing in pg_stat_statements

Magnus Hagander <magnus@hagander.net>

From: Magnus Hagander <magnus@hagander.net>
To: Julien Rouhaud <rjuju123@gmail.com>
Cc: PostgreSQL Developers <pgsql-hackers@lists.postgresql.org>
Date: 2022-02-25T15:41:22Z
Lists: pgsql-hackers
On Fri, Feb 25, 2022 at 4:40 PM Julien Rouhaud <rjuju123@gmail.com> wrote:
>
> On Fri, Feb 25, 2022 at 04:19:27PM +0100, Magnus Hagander wrote:
> >
> > So just to be clear, you're basically thinking:
> >
> > jit_count = count of entries where jit_functions>0
> > jit_functions = <same as now>
> > jit_optimizatinos = count of entries where time spent on jit_optimizations > 0
> >
> > etc?
>
> Yes exactly, so 3 new fields on top of the one you already added.
>
> > So we count the times with min/max like other times for the total one,
> > but instead add a counter for each of the details?
>
> I don't understand this one.  Did you mean we *don't* count times with min/max?
> If that's the case then yes :)

Hmm. Yeah, that was a bit unclear. I mean we track total time with
min/max, and detailed time not at all. For details, we only track
count, not time.

-- 
 Magnus Hagander
 Me: https://www.hagander.net/
 Work: https://www.redpill-linpro.com/



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  1. Add JIT counters to pg_stat_statements