Document how dss precedence affects huge allocation.

This commit is contained in:
Jason Evans 2014-03-31 09:16:59 -07:00
parent 82abf6fe69
commit 9c62ed44b0

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@ -1439,8 +1439,12 @@ malloc_conf = "xmalloc:true";]]></programlisting>
<listitem><para>Set the precedence of dss allocation as related to mmap <listitem><para>Set the precedence of dss allocation as related to mmap
allocation for arena &lt;i&gt;, or for all arenas if &lt;i&gt; equals allocation for arena &lt;i&gt;, or for all arenas if &lt;i&gt; equals
<link <link
linkend="arenas.narenas"><mallctl>arenas.narenas</mallctl></link>. See linkend="arenas.narenas"><mallctl>arenas.narenas</mallctl></link>. Note
<link linkend="opt.dss"><mallctl>opt.dss</mallctl></link> for supported that even during huge allocation this setting is read from the arena
that would be chosen for small or large allocation so that applications
can depend on consistent dss versus mmap allocation regardless of
allocation size. See <link
linkend="opt.dss"><mallctl>opt.dss</mallctl></link> for supported
settings. settings.
</para></listitem> </para></listitem>
</varlistentry> </varlistentry>