Add documentation for percpu_arena in jemalloc.xml.in.
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@ -926,6 +926,24 @@ mallctl("arena." STRINGIFY(MALLCTL_ARENAS_ALL) ".decay",
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number of CPUs, or one if there is a single CPU.</para></listitem>
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</varlistentry>
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<varlistentry id="opt.percpu_arena">
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<term>
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<mallctl>opt.percpu_arena</mallctl>
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(<type>const char *</type>)
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<literal>r-</literal>
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</term>
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<listitem><para>Per CPU arena mode. Use the <quote>percpu</quote>
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setting to enable this feature, which uses number of CPUs to determine
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number of arenas, and bind threads to arenas dynamically based on the
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CPU the thread runs on currently. <quote>phycpu</quote> setting uses
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one arena per physical CPU, which means the two hyper threads on the
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same CPU share one arena. Note that no runtime checking regarding the
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availability of hyper threading is done at the moment. When set to
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<quote>disabled</quote>, narenas and thread to arena association will
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not be impacted by this option. The default is
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<quote>percpu</quote>. </para></listitem>
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</varlistentry>
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<varlistentry id="opt.decay_time">
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<term>
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<mallctl>opt.decay_time</mallctl>
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