| From: | Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com> |
|---|---|
| To: | Andrey Borodin <x4mmm(at)yandex-team(dot)ru> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Jakub Wartak <Jakub(dot)Wartak(at)tomtom(dot)com>, Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Kirill Reshke <reshke(at)double(dot)cloud>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Use fadvise in wal replay |
| Date: | 2022-08-05 13:02:39 |
| Message-ID: | CALj2ACX4v0+Qx6gKubV8pzYUDmX=uU6cbFDRc=Z2iE+SD=ZKXw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Thu, Aug 4, 2022 at 9:48 PM Andrey Borodin <x4mmm(at)yandex-team(dot)ru> wrote:
>
> > On 18 Jul 2022, at 22:55, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> >
> > On Thu, Jun 23, 2022 at 5:49 AM Jakub Wartak <Jakub(dot)Wartak(at)tomtom(dot)com> wrote:
I have a fundamental question on the overall idea - How beneficial it
will be if the process that's reading the current WAL page only does
(at least attempts) the prefetching of future WAL pages? Won't the
benefit be higher if "some" other background process does prefetching?
--
Bharath Rupireddy
RDS Open Source Databases: https://aws.amazon.com/rds/postgresql/
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