| From: | Bertrand Drouvot <bertranddrouvot(dot)pg(at)gmail(dot)com> |
|---|---|
| To: | Nathan Bossart <nathandbossart(at)gmail(dot)com> |
| Cc: | Sami Imseih <samimseih(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Robert Haas <robertmhaas(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Restart pg_usleep when interrupted |
| Date: | 2024-07-16 05:06:47 |
| Message-ID: | ZpX/5/irF/gZqT7b@ip-10-97-1-34.eu-west-3.compute.internal |
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| Lists: | pgsql-hackers |
Hi,
On Mon, Jul 15, 2024 at 12:20:29PM -0500, Nathan Bossart wrote:
> On Fri, Jul 12, 2024 at 03:39:57PM -0500, Sami Imseih wrote:
> > but Bertrand found long drifts [2[ which I could not reproduce.
> > To safeguard the long drifts, continue to use the &remain time with an
> > additional safeguard to make sure the actual sleep does not exceed the
> > requested sleep time.
>
> Bertrand, does this safeguard fix the long drifts you saw?
Yeah, it was the case with the first version using the safeguard (see [1]) and
it's also the case with the last one shared in [2].
[1]: https://www.postgresql.org/message-id/Zo0UdeE3i9d0Wt5E%40ip-10-97-1-34.eu-west-3.compute.internal
[2]: https://www.postgresql.org/message-id/C18017A1-EDFD-4F2F-BCA1-0572D4CCC92B%40gmail.com
Regards,
--
Bertrand Drouvot
PostgreSQL Contributors Team
RDS Open Source Databases
Amazon Web Services: https://aws.amazon.com
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