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Add "prof.dump_prefix" to override filename prefixes for dumps.

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This commit is contained in:
zhxchen17
2019-09-09 20:18:41 -07:00
committed by Qi Wang
parent 242af439b8
commit 4b76c684bb
8 changed files with 166 additions and 38 deletions
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42
doc/jemalloc.xml.in
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@@ -1344,7 +1344,10 @@ malloc_conf = "xmalloc:true";]]></programlisting>
set to the empty string, no automatic dumps will occur; this is
primarily useful for disabling the automatic final heap dump (which
also disables leak reporting, if enabled). The default prefix is
<filename>jeprof</filename>.</para></listitem>
<filename>jeprof</filename>. This prefix value can be overriden by
<link
linkend="prof.dump_prefix"><mallctl>prof.dump_prefix</mallctl></link>.
</para></listitem>
</varlistentry>
<varlistentry id="opt.prof_active">
@@ -1423,8 +1426,10 @@ malloc_conf = "xmalloc:true";]]></programlisting>
<filename>&lt;prefix&gt;.&lt;pid&gt;.&lt;seq&gt;.i&lt;iseq&gt;.heap</filename>,
where <literal>&lt;prefix&gt;</literal> is controlled by the
<link
linkend="opt.prof_prefix"><mallctl>opt.prof_prefix</mallctl></link>
option. By default, interval-triggered profile dumping is disabled
linkend="opt.prof_prefix"><mallctl>opt.prof_prefix</mallctl></link> and
<link
linkend="prof.dump_prefix"><mallctl>prof.dump_prefix</mallctl></link>
options. By default, interval-triggered profile dumping is disabled
(encoded as -1).
</para></listitem>
</varlistentry>
@@ -1456,8 +1461,10 @@ malloc_conf = "xmalloc:true";]]></programlisting>
usage to a file named according to the pattern
<filename>&lt;prefix&gt;.&lt;pid&gt;.&lt;seq&gt;.f.heap</filename>,
where <literal>&lt;prefix&gt;</literal> is controlled by the <link
linkend="opt.prof_prefix"><mallctl>opt.prof_prefix</mallctl></link>
option. Note that <function>atexit()</function> may allocate
linkend="opt.prof_prefix"><mallctl>opt.prof_prefix</mallctl></link> and
<link
linkend="prof.dump_prefix"><mallctl>prof.dump_prefix</mallctl></link>
options. Note that <function>atexit()</function> may allocate
memory during application initialization and then deadlock internally
when jemalloc in turn calls <function>atexit()</function>, so
this option is not universally usable (though the application can
@@ -2224,8 +2231,25 @@ struct extent_hooks_s {
<filename>&lt;prefix&gt;.&lt;pid&gt;.&lt;seq&gt;.m&lt;mseq&gt;.heap</filename>,
where <literal>&lt;prefix&gt;</literal> is controlled by the
<link
linkend="opt.prof_prefix"><mallctl>opt.prof_prefix</mallctl></link> and
<link
linkend="prof.dump_prefix"><mallctl>prof.dump_prefix</mallctl></link>
options.</para></listitem>
</varlistentry>
<varlistentry id="prof.dump_prefix">
<term>
<mallctl>prof.dump_prefix</mallctl>
(<type>const char *</type>)
<literal>-w</literal>
[<option>--enable-prof</option>]
</term>
<listitem><para>Set the filename prefix for profile dumps. See
<link
linkend="opt.prof_prefix"><mallctl>opt.prof_prefix</mallctl></link>
option.</para></listitem>
for the default setting. This can be useful to differentiate profile
dumps such as from forked processes.
</para></listitem>
</varlistentry>
<varlistentry id="prof.gdump">
@@ -2240,8 +2264,10 @@ struct extent_hooks_s {
dumped to files named according to the pattern
<filename>&lt;prefix&gt;.&lt;pid&gt;.&lt;seq&gt;.u&lt;useq&gt;.heap</filename>,
where <literal>&lt;prefix&gt;</literal> is controlled by the <link
linkend="opt.prof_prefix"><mallctl>opt.prof_prefix</mallctl></link>
option.</para></listitem>
linkend="opt.prof_prefix"><mallctl>opt.prof_prefix</mallctl></link> and
<link
linkend="prof.dump_prefix"><mallctl>prof.dump_prefix</mallctl></link>
options.</para></listitem>
</varlistentry>
<varlistentry id="prof.reset">