On Wed, Jul 20, 2022 at 09:56:37PM +0800, yanliang lei wrote:
>
> https://www.postgresql.org/docs/15/runtime-config-resource.html#
> GUC-HUGE-PAGE-SIZE
>
>
> the following is from the above website:
>
> Some commonly available page sizes on modern 64 bit server architectures
> include:
>
> 2MB and 1GB (Intel and AMD), 16MB and 16GB (IBM POWER), and 64kB, 2MB, 32MB
> and
> 1GB (ARM). For more information about usage and support,
I think these are the sizes the CPUs support, no necessarily the ones
that the operating system supports.
> but after my test, I found that:
>
> in the RHEL7.9(kernel version 3.10.0-1160),when I set the non default huge
> page
> size for huge_page_size parameter ,PG14 can not start；
>
> in the RHEL8.5(kernel version 4.18.0-348),when I set the non default huge page
> size for huge_page_size parameter ,PG14 can start 。
The paragraph begins with:
Some commonly available page sizes on modern 64 bit server
architectures include:
which seems sufficient to suggest that all listed sizes might not be
supported on all operating systems, and this is only supported on Linux,
as documented.
--
Bruce Momjian <br...@momjian.us> https://momjian.us
EDB https://enterprisedb.com
Indecision is a decision. Inaction is an action. Mark Batterson
