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<chapter Id="runtime">
</listitem>
<listitem>
<para>
- <literal>open_sync</> (write WAL files with <function>open()</> option <symbol>O_SYNC</>)
+ <literal>fsync_writethrough</> (force write-through of any disk write cache)
</para>
</listitem>
<listitem>
<para>
- <literal>fsync_writethrough</> (force write-through of any disk write cache)
+ <literal>open_sync</> (write WAL files with <function>open()</> option <symbol>O_SYNC</>)
</para>
</listitem>
</itemizedlist>