UDP based profiling

What and Where

1. $wgProfiler = new ProfilingSimpleUDP; (in index or Settings)
2. $wgUDPProfilerHost = '10.0.6.30'; (in Settings)
3. running on professor:
   • /usr/udpprofile/sbin/collector svn root
     • listens on udp:3811 for profiling packets, provides xml dumps on tcp:3811
   • /usr/udpprofile/sbin/profiler-to-carbon
     • polls collector every minute, inserts count and timing (in ms) data into whisper db's
   • /opt/graphite/bin/carbon-cache.py
     • updates whisper db files for graphite
4. graphite based web interface - uses labs ldap for auth
5. aggregate report web interface
   • svn root