From: piotrwlodarczyk89@gmail.com
To: pgsql-docs@postgresql.org
Subject: 18.4.4. Linux huge pages
Date: Fri, 21 Oct 2016 16:43:51 +0000
Message-ID: <20161021164351.1411.39835@wrigleys.postgresql.org> (raw)
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The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/9.6/static/kernel-resources.html
Description:
Hi,
it's a mistake in 18.4.4. Linux huge pages (also in 9.4 and 9.5
documentation). Example how to count number f huge pages says:
6490428 / 2048 (PAGE_SIZE is 2MB in this case) are roughly 3169.154 huge
pages, so you will need at least 3170 huge pages:
It's very rare that PAGE_SIZE is 2MB. It's more common situation that the
value is 4096KB. But it's not a problem.
The VmPeak should by divded not by PAGE_SIZE but by Hugepagesize listed by
cat /proc/meminfo | grep Hugepagesize.
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To: pgsql-docs@postgresql.org
Cc: piotrwlodarczyk89@gmail.com
Subject: Re: 18.4.4. Linux huge pages
In-Reply-To: <20161021164351.1411.39835@wrigleys.postgresql.org>
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