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Add documentation for percpu_arena in jemalloc.xml.in.

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Qi Wang 2017-03-07 15:08:29 -08:00 committed by Qi Wang
parent ec532e2c5c
commit f84471edc3
1 changed files with 18 additions and 0 deletions
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18
doc/jemalloc.xml.in
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@ -926,6 +926,24 @@ mallctl("arena." STRINGIFY(MALLCTL_ARENAS_ALL) ".decay",
number of CPUs, or one if there is a single CPU.</para></listitem> number of CPUs, or one if there is a single CPU.</para></listitem>
</varlistentry> </varlistentry>
<varlistentry id="opt.percpu_arena">
<term>
<mallctl>opt.percpu_arena</mallctl>
(<type>const char *</type>)
<literal>r-</literal>
</term>
<listitem><para>Per CPU arena mode. Use the <quote>percpu</quote>
setting to enable this feature, which uses number of CPUs to determine
number of arenas, and bind threads to arenas dynamically based on the
CPU the thread runs on currently. <quote>phycpu</quote> setting uses
one arena per physical CPU, which means the two hyper threads on the
same CPU share one arena. Note that no runtime checking regarding the
availability of hyper threading is done at the moment. When set to
<quote>disabled</quote>, narenas and thread to arena association will
not be impacted by this option. The default is
<quote>percpu</quote>. </para></listitem>
</varlistentry>
<varlistentry id="opt.decay_time"> <varlistentry id="opt.decay_time">
<term> <term>
<mallctl>opt.decay_time</mallctl> <mallctl>opt.decay_time</mallctl>