> On 13 Sep 2023, at 01:49, Andres Freund <andres@anarazel.de> wrote:
> On 2023-08-30 10:57:10 +0200, Daniel Gustafsson wrote:
>>> On 28 Aug 2023, at 14:32, Daniel Gustafsson <daniel@yesql.se> wrote:
>>
>>> Attached is a patch with a quick PoC for using PQPing instead of using psql for
>>> connection checks in pg_regress.
>>
>> The attached v2 fixes a silly mistake which led to a compiler warning.
>
> Still seems like a good idea to me. To see what impact it has, I measured the
> time running the pg_regress tests that take less than 6s on my machine - I
> excluded the slower ones (like the main regression tests) because they'd hide
> any overall difference.
> My patch increased user/sys time a bit (likely due to a higher number of
> futile psql forks), but Daniel's doesn't. And it does show a nice overall wall
> clock time saving.
While it does add a lib dependency I think it's worth doing, so I propose we go
ahead with this for master.
--
Daniel Gustafsson
