Peruser is an additional mpm for apache and is included in gentoo-apache patchset. Peruser 0.4.0rc2: * fixed "invalid virtualhost for this child" (#2) * rewrote graceful mechanism, removed ugly code which the server was using to remember graceful children * fixed server losing slots, which resulted in many "long lost child" after gracefuls * code cleanup * Peruser extended stats is now at /server_status?peruser_stats and includes 3 new columns: requests, connections and dropped (503).
included in 2.2.17, thanks