| From: | Michael Paquier <michael(at)paquier(dot)xyz> |
|---|---|
| To: | "Bossart, Nathan" <bossartn(at)amazon(dot)com> |
| Cc: | Andres Freund <andres(at)anarazel(dot)de>, Mark Dilger <mark(dot)dilger(at)enterprisedb(dot)com>, Don Seiler <don(at)seiler(dot)us>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Estimating HugePages Requirements? |
| Date: | 2021-08-27 06:46:35 |
| Message-ID: | YSiKS58gSXDpj6NR@paquier.xyz |
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| Lists: | pgsql-admin pgsql-hackers |
On Wed, Aug 11, 2021 at 11:23:52PM +0000, Bossart, Nathan wrote:
> I think BootstrapModeMain() makes the most sense. It fits in nicely
> with the --check logic that's already there. With v3, the following
> command can be used to retrieve the amount of shared memory required.
>
> postgres --output-shmem -D dir
>
> While testing this new option, I noticed that you can achieve similar
> results today with the following command, although this one will
> actually try to create the shared memory, too.
That may not be the best option.
> IMO the new option is still handy, but I can see the argument that it
> might not be necessary.
A separate option looks handy. Wouldn't it be better to document it
in postgres-ref.sgml then?
--
Michael
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