8000 Update information about configuring SysV IPC parameters on NetBSD. · percona/postgres@0564f62 · GitHub
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Update information about configuring SysV IPC parameters on NetBSD.
Per Emmanuel Kasper, sysctl works fine as of NetBSD 5.0.
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‎doc/src/sgml/runtime.sgml

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@@ -285,10 +285,11 @@ fi
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<listitem>
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<para>
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On <productname>NetBSD</productname>, either use the
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On <productname>NetBSD</productname>, use either the
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<productname>FreeBSD</productname> or
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<productname>Linux</productname> start scripts, depending on
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preference. <indexterm><primary>NetBSD</><secondary>start script</secondary></>
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preference.
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<indexterm><primary>NetBSD</><secondary>start script</secondary></>
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</para>
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</listitem>
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</para>
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<para>
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<systemitem class="osname">FreeBSD</> versions before 4.0 work like
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<systemitem class="osname">NetBSD</> and <systemitem class="osname">
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OpenBSD</> (see below).
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<systemitem class="osname">FreeBSD</> versions before 4.0 work like
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<systemitem class="osname">OpenBSD</> (see below).
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><systemitem class="osname">NetBSD</></term>
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<term><systemitem class="osname">OpenBSD</></term>
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<indexterm><primary>NetBSD</><secondary>IPC configuration</></>
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<listitem>
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<para>
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In <systemitem class="osname">NetBSD</> 5.0 and later,
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IPC parameters can be adjusted using <command>sysctl</command>,
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for example:
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<screen>
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<prompt>$</prompt> <userinput>sysctl -w kern.ipc.shmmax=16777216</userinput>
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</screen>
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To have these settings persist over reboots, modify
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<filename>/etc/sysctl.conf</filename>.
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</para>
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<para>
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You might also want to configure your kernel to lock shared
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memory into RAM and prevent it from being paged out to swap.
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This can be accomplished using the <command>sysctl</command>
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setting <literal>kern.ipc.shm_use_phys</literal>.
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</para>
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<para>
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<systemitem class="osname">NetBSD</> versions before 5.0 work like
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<systemitem class="osname">OpenBSD</> (see below), except that
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parameters should be set with the keyword <literal>options</> not
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<literal>option</>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><systemitem class="osname">OpenBSD</></term>
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<indexterm><primary>OpenBSD</><secondary>IPC configuration</></>
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<listitem>
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<para>
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The options <varname>SYSVSHM</> and <varname>SYSVSEM</> need
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to be enabled when the kernel is compiled. (They are by
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default.) The maximum size of shared memory is determined by
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the option <varname>SHMMAXPGS</> (in pages). The following
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shows an example of how to set the various parameters
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(<systemitem class="osname">OpenBSD</> uses <literal>option</> instead):
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shows an example of how to set the various parameters:
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<programlisting>
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options SYSVSHM
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options SHMMAXPGS=4096
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options SHMSEG=256
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options SYSVSEM
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options SEMMNI=256
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options SEMMNS=512
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options SEMMNU=256
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options SEMMAP=256
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option SYSVSHM
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option SHMMAXPGS=4096
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option SHMSEG=256
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option SYSVSEM
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option SEMMNI=256
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option SEMMNS=512
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option SEMMNU=256
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option SEMMAP=256
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</programlisting>
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><systemitem class="osname">HP-UX</></term>
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<indexterm><primary>HP-UX</><secondary>IPC configuration</></>

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