overcommit_ratio setting

From: Yi Sun <yinan81(at)gmail(dot)com>
To: pgsql-performance(at)lists(dot)postgresql(dot)org
Subject: overcommit_ratio setting
Date: 2021-06-14 10:16:35
Message-ID: CABWY_HCTBwZY-dQNX-XweBz3XYfuCwXcyggo8H3YbW4EUQKOdQ@mail.gmail.com
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Hello,

After checking doc, only mentioned vm.overcommit_memory=2, but didn't
mentioned vm.overcommit_ratio recommended value

https://www.postgresql.org/docs/11/kernel-resources.html#LINUX-MEMORY-OVERCOMMIT

some articles mentioned that 80 or 90 configuration in their env

So is it OK just to configure vm.overcommit_ratio to 90 please?

Thank you

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