From: yanliang lei <msdnchina@163.com>
To: pgsql-docs@lists.postgresql.org
Subject: huge_page_size parameter description in the pg 14 docs is not exact
Date: Wed, 20 Jul 2022 21:56:37 +0800 (CST)
Message-ID: <4310e627.5be8.1821be570d5.Coremail.msdnchina@163.com> (raw)
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,
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 。
so ,
I think that:
the huge_page_size parameter description in the PostgreSQL 14 documents is not exact.
I suggest that :
Some one should modify the postgreSQL 14 documents（https://www.postgresql.org/docs/15/runtime-config-resource.html#GUC-HUGE-PAGE-SIZE） like the following:
in the RHEL7.x (kernel version 3.10.0-xxx), huge_page_size parameter can not set to the non default huge page size.
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To: pgsql-docs@postgresql.org
Cc: msdnchina@163.com, pgsql-docs@lists.postgresql.org
Subject: Re: huge_page_size parameter description in the pg 14 docs is not exact
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