Usage: /usr/bin/ceph_perf_msgr_server [bind ip:port] [server worker threads] [thinktime us]
       [bind ip:port]: The ip:port pair to bind, client need to specify this pair to connect
       [server worker threads]: threads will process incoming messages and reply(matching pg threads)
       [thinktime]: sleep time when do dispatching(match fast dispatch logic in OSD.cc)