I'm afraid this one may require a new RC (I'm open to discussion).

The logkit.xconf file has the following setting, which is different from what is in SVN:

<category name="modules.mapper.lm" log-level="DEBUG">

SVN has:

<category name="modules.mapper.lm" log-level="INFO">

With locationmap logging set to debug performance is considerably decreased, especially when the locationmap result is not cached (i.e. on the first resource request or when it has expired).

Ross