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Use huge size class infrastructure for large size classes.

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This commit is contained in:
Jason Evans
2016-05-28 00:17:28 -07:00
parent b46261d58b
commit ed2c2427a7
34 changed files with 463 additions and 1979 deletions
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88
doc/jemalloc.xml.in
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@@ -417,22 +417,21 @@ for (i = 0; i < nbins; i++) {
<parameter>write_cb</parameter>, or
<function>malloc_message<parameter/></function> if
<parameter>write_cb</parameter> is <constant>NULL</constant>. This
function can be called repeatedly. General information that never
changes during execution can be omitted by specifying "g" as a character
within the <parameter>opts</parameter> string. Note that
function can be called repeatedly. General information that never changes
during execution can be omitted by specifying "g" as a character within
the <parameter>opts</parameter> string. Note that
<function>malloc_message<parameter/></function> uses the
<function>mallctl*<parameter/></function> functions internally, so
inconsistent statistics can be reported if multiple threads use these
functions simultaneously. If <option>--enable-stats</option> is
specified during configuration, &ldquo;m&rdquo; and &ldquo;a&rdquo; can
be specified to omit merged arena and per arena statistics, respectively;
&ldquo;b&rdquo;, &ldquo;l&rdquo;, and &ldquo;h&rdquo; can be specified to
omit per size class statistics for bins, large objects, and huge objects,
respectively. Unrecognized characters are silently ignored. Note that
thread caching may prevent some statistics from being completely up to
date, since extra locking would be required to merge counters that track
thread cache operations.
</para>
functions simultaneously. If <option>--enable-stats</option> is specified
during configuration, &ldquo;m&rdquo; and &ldquo;a&rdquo; can be specified
to omit merged arena and per arena statistics, respectively;
&ldquo;b&rdquo; and &ldquo;l&rdquo; can be specified to omit per size
class statistics for bins and large objects, respectively. Unrecognized
characters are silently ignored. Note that thread caching may prevent
some statistics from being completely up to date, since extra locking
would be required to merge counters that track thread cache
operations.</para>
<para>The <function>malloc_usable_size<parameter/></function> function
returns the usable size of the allocation pointed to by
@@ -1888,25 +1887,6 @@ typedef struct {
<listitem><para>Number of bytes per page run.</para></listitem>
</varlistentry>
<varlistentry id="arenas.nlruns">
<term>
<mallctl>arenas.nlruns</mallctl>
(<type>unsigned</type>)
<literal>r-</literal>
</term>
<listitem><para>Total number of large size classes.</para></listitem>
</varlistentry>
<varlistentry id="arenas.lrun.i.size">
<term>
<mallctl>arenas.lrun.&lt;i&gt;.size</mallctl>
(<type>size_t</type>)
<literal>r-</literal>
</term>
<listitem><para>Maximum size supported by this large size
class.</para></listitem>
</varlistentry>
<varlistentry id="arenas.nhchunks">
<term>
<mallctl>arenas.nhchunks</mallctl>
@@ -2534,50 +2514,6 @@ typedef struct {
<listitem><para>Current number of runs.</para></listitem>
</varlistentry>
<varlistentry id="stats.arenas.i.lruns.j.nmalloc">
<term>
<mallctl>stats.arenas.&lt;i&gt;.lruns.&lt;j&gt;.nmalloc</mallctl>
(<type>uint64_t</type>)
<literal>r-</literal>
[<option>--enable-stats</option>]
</term>
<listitem><para>Cumulative number of allocation requests for this size
class served directly by the arena.</para></listitem>
</varlistentry>
<varlistentry id="stats.arenas.i.lruns.j.ndalloc">
<term>
<mallctl>stats.arenas.&lt;i&gt;.lruns.&lt;j&gt;.ndalloc</mallctl>
(<type>uint64_t</type>)
<literal>r-</literal>
[<option>--enable-stats</option>]
</term>
<listitem><para>Cumulative number of deallocation requests for this
size class served directly by the arena.</para></listitem>
</varlistentry>
<varlistentry id="stats.arenas.i.lruns.j.nrequests">
<term>
<mallctl>stats.arenas.&lt;i&gt;.lruns.&lt;j&gt;.nrequests</mallctl>
(<type>uint64_t</type>)
<literal>r-</literal>
[<option>--enable-stats</option>]
</term>
<listitem><para>Cumulative number of allocation requests for this size
class.</para></listitem>
</varlistentry>
<varlistentry id="stats.arenas.i.lruns.j.curruns">
<term>
<mallctl>stats.arenas.&lt;i&gt;.lruns.&lt;j&gt;.curruns</mallctl>
(<type>size_t</type>)
<literal>r-</literal>
[<option>--enable-stats</option>]
</term>
<listitem><para>Current number of runs for this size class.
</para></listitem>
</varlistentry>
<varlistentry id="stats.arenas.i.hchunks.j.nmalloc">
<term>
<mallctl>stats.arenas.&lt;i&gt;.hchunks.&lt;j&gt;.nmalloc</mallctl>