Re: pgbnech: allow to cancel queries during benchmark

On Wed, 9 Aug 2023 11:18:43 +0200 (CEST)
Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr> wrote:

>
> I forgot, about the test:
>
> I think that it should be integrated in the existing
> "001_pgbench_with_server.pl" script, because a TAP script is pretty
> expensive as it creates a cluster, starts it… before running the test.

Ok. I'll integrate the test into 001.

> I'm surprise that IPC::Run does not give any access to the process number.
> Anyway, its object interface seems to allow sending signal:
>
> $h->signal("...")
>
> So the code could be simplified to use that after a small delay.

Thank you for your information.

I didn't know $h->signal() and I mimicked the way of
src/bin/psql/t/020_cancel.pl to send SIGINT to a running program. I don't
know why the psql test doesn't use the interface, I'll investigate whether
this can be used in our purpose, anyway.

Regards,
Yugo Nagata

>
> --
> Fabien.

--
Yugo NAGATA <nagata(at)sraoss(dot)co(dot)jp>