Re: Big Performance drop of Exceptions in UDFs between V11.2 and 13.4

Em qui., 2 de set. de 2021 às 12:22, Andrew Dunstan <andrew(at)dunslane(dot)net>
escreveu:

>
> On 8/31/21 1:55 PM, Andrew Dunstan wrote:
> > On 8/31/21 11:37 AM, Julien Rouhaud wrote:
> >> On Tue, Aug 31, 2021 at 10:51 PM ldh(at)laurent-hasson(dot)com
> >> <ldh(at)laurent-hasson(dot)com> wrote:
> >>> OK... I thought that track had been abandoned as per Julien's last
> message. Anyways, I'll be patient!
> >>>
> >> I just happened to have both standard installer and locally compiled
> >> versions available, so I could confirm that I reproduced the problem
> >> at least with the standard installer. Note that my message also said
> >> " if default build on windows has NLS included". After looking a bit
> >> more into the Windows build system, I confirm that NLS isn't included
> >> by default so this is not the problem, as Andrew said.
> >>
> >> After installing gettext and a few other dependencies, adapting
> >> config.pl I wish I could also confirm being able to reproduce the
> >> problem on my build, but apparently I'm missing something as I can't
> >> get any modification in config.pl have any effect. I'm not gonna
> >> waste more time on that since Andrew is already in the middle of the
> >> investigation.
> >
> >
> > The culprit turns out to be the precise version of libiconv/libintl
> > used. There is a slight difference between the versions used in the
> > 11.13 installer and the 13.4 installer. We need to dig into performance
> > more (e.g. why does the test take much longer on an NLS enabled build
> > even when we are using 'initdb --no-locale'?) But I'm pretty confident
> > now that this is the issue. I've started talks with our installer guys
> > about fixing it.
> >
> >
>
>
> Here are a couple of pictures of profiles made with a tool called
> sleepy. The bad profile is from release 13.4 built with the latest
> gettext, built with vcpkg. The good profile is the same build but using
> the intl-8.dll copied from the release 11.13 installer. The good run
> takes about a minute. The bad run takes about 30 minutes.
>
>
> I'm not exactly sure what the profiles tell us.
>
Bug in the libintl?
libintl doesn't cache untranslated strings
https://savannah.gnu.org/bugs/?58006

regards,
Ranier Vilela