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From: Seino Yuki <[email protected]>
To: Nathan Bossart <[email protected]>
Cc: Fujii Masao <[email protected]>
Cc: Michael Paquier <[email protected]>
Cc: [email protected]
Subject: Re: Doc: shared_memory_size_in_huge_pages with the "SHOW" command.
Date: Thu, 17 Oct 2024 14:07:32 +0900
Message-ID: <[email protected]> (raw)
In-Reply-To: <Zw_RS35LpJfRJlub@nathan>
References: <[email protected]>
	<[email protected]>
	<Zw8WLvyjsbz64NOD@nathan>
	<[email protected]>
	<[email protected]>
	<Zw_RS35LpJfRJlub@nathan>

Thank you, everyone.

> the point being to encourage its use before the server is running
> as we don't want to allocate anything when tuning it.
I was mistaken and now understand that it needs to be run before the 
server is running.

>> Another idea is to use the same wording as for num_os_semaphores in 
>> runtime.sgml, like this:
> 
> WFM
I've fixed the patch and will register it in the CF.

Regards,
--
Yuki Seino
NTT DATA CORPORATION

Attachments:

  [text/x-diff] v2-0001-shared_memory_size_in_huge_pages_docfix.patch (871B, ../[email protected]/2-v2-0001-shared_memory_size_in_huge_pages_docfix.patch)
  download | inline diff:
diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml
index 2c4d5ef640..63669f2d2e 100644
--- a/doc/src/sgml/runtime.sgml
+++ b/doc/src/sgml/runtime.sgml
@@ -1431,9 +1431,9 @@ export PG_OOM_ADJUST_VALUE=0
     the operating system to provide enough huge pages of the desired size.
     To determine the number of huge pages needed, use the
     <command>postgres</command> command to see the value of
-    <xref linkend="guc-shared-memory-size-in-huge-pages"/>.  Note that the
-    server must be shut down to view this runtime-computed parameter.
-    This might look like:
+    <xref linkend="guc-shared-memory-size-in-huge-pages"/>.  This parameter
+    can be viewed before starting the server with a <command>postgres</command>
+    command like:
 <programlisting>
 $ <userinput>postgres -D $PGDATA -C shared_memory_size_in_huge_pages</userinput>
 3170

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