Hi, yup, yet another desperate call for review. I just need another small review to get this patch (hopefully) marked as RTBC. It has been tested thoroughly already! What does it do? - how: provide the ability to use no optimization at all, a blacklist or a whitelist of Drupal paths, to reduce the number of queries drupal_lookup_path() has to perform - default: a very safe blacklist - UI: none, to avoid confusion for the average user. The UI will be provided by a contrib module. - performance improvement: from 55.07 reqs/sec to 61.46 reqs/sec, which is 11.6% more (using the default). These numbers come from benchmarks that you can see in follow-up #72. The total number of queries per page dropped about 20% (absolute numbers: between 10 and 100 less queries). Of course this all depends on your setup. Conclusion: - this patch gives a "free" performance boost to all path.module users, the difference will be larger for more complex sites - if you're knowledgeable enough to use the UI for this module, you can increase that performance gain even further Link: http://drupal.org/node/106559 Wim Leers