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Clarify how to use malloc_conf.

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Clarify that malloc_conf is intended only for compile-time
configuration, since jemalloc may be initialized before main() is
entered.
This commit is contained in:
Jason Evans 2013-03-19 16:28:41 -07:00
parent 9ef9d9e8c2
commit 705328ca46
1 changed files with 8 additions and 1 deletions
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9
doc/jemalloc.xml.in
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@ -432,7 +432,14 @@ for (i = 0; i < nbins; i++) {
referenced by the symbolic link named <filename referenced by the symbolic link named <filename
class="symlink">/etc/malloc.conf</filename>, and the value of the class="symlink">/etc/malloc.conf</filename>, and the value of the
environment variable <envar>MALLOC_CONF</envar>, will be interpreted, in environment variable <envar>MALLOC_CONF</envar>, will be interpreted, in
that order, from left to right as options.</para> that order, from left to right as options. Note that
<varname>malloc_conf</varname> may be read before
<function>main<parameter/></function> is entered, so the declaration of
<varname>malloc_conf</varname> should specify an initializer that contains
the final value to be read by jemalloc. <varname>malloc_conf</varname> is
a compile-time setting, whereas <filename
class="symlink">/etc/malloc.conf</filename> and <envar>MALLOC_CONF</envar>
can be safely set any time prior to program invocation.</para>
<para>An options string is a comma-separated list of option:value pairs. <para>An options string is a comma-separated list of option:value pairs.
There is one key corresponding to each <link There is one key corresponding to each <link