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.
