RPC Measurements May 2011

Owned by John Ousterhout
Last updated: May 17, 2011Version comment

Various RAMCloud RPC measurements made by Nandu, Spring 2011:

  • Client latency for 100B read: 5.0 us
  • Maximum server throughput for 100B reads: 950K/sec
  • Client latency for 100B write: 11 us
  • Maximum server throughput for 100B writes, no backups, no cleaner: 460K/sec
  • Maximum server throughput for 100B writes, 2 backups, no cleaner: 90K/sec (seems like it should be higher than this?)
  • Time in MasterServer::read for 100B read (repeated access to a single object): 83ns
  • Time in MasterServer::write for 100B write, 0 backups, no cleaner: 870ns
  • Time in MasterServer::write for 100B write, 2 backups, no cleaner: 6350ns