On 8/22/21 5:59 PM, ldh@laurent-hasson.com wrote:
>
> > -----Original Message-----
> > From: Andrew Dunstan <andrew@dunslane.net>
> > Sent: Sunday, August 22, 2021 17:27
> > To: Tom Lane <tgl@sss.pgh.pa.us>; ldh@laurent-hasson.com
> > Cc: Justin Pryzby <pryzby@telsasoft.com>; Ranier Vilela
> > <ranier.vf@gmail.com>; pgsql-performance@postgresql.org
> > Subject: Re: Big Performance drop of Exceptions in UDFs between V11.2
> > and 13.4
> >
> >
> > On 8/22/21 4:11 PM, Tom Lane wrote:
> > > "ldh@laurent-hasson.com" <ldh@laurent-hasson.com> writes:
> > >> I do have a Linux install of 13.3, and things work beautifully, so this is
> > definitely a Windows thing here that started in V12.
> > > It's good to have a box around it, but that's still a pretty large box
> > > :-(.
> > >
> > > I'm hoping that one of our Windows-using developers will see if they
> > > can reproduce this, and if so, try to bisect where it started.
> > > Not sure how to make further progress without that.
> > >
> > >
> >
> >
> > Can do. Assuming the assertion that it started in Release 12 is correct, I
> > should be able to find it by bisecting between the branch point for 12
> > and the tip of that branch. That's a little over 20 probes by my
> > calculation.
> >
> >
> > cheers
> >
> >
> > andrew
> >
> >
> > --
> > Andrew Dunstan
> > EDB: https://www.enterprisedb.com
>
>
> I tried it on 11.13 and 12.3. Is there a place where I could download 12.1 and 12.2 and test that? Is it worth it or
youthink you have all you need?
>
I think I have everything I need.
Step one will be to verify that the difference exists between the branch
point and the tip of release 12. Once that's done it will be a matter of
probing until the commit at fault is identified.
cheers
andrew
--
Andrew Dunstan
EDB: https://www.enterprisedb.com