sendfile/results

   1 send (B/MB)                     receive (B/KB)                  t(s)    2p              3p              6p              8p
   2 -------------------------------------------------------------------------------
   3 33554432/32                     344232/337                              4               10              18              49              61
   4 67108864/64                     368820/361                              10              20              35              80              115
   5 134217728/128           434388/425                              20              42              58              226             214
   6 268435456/256           1901472/1946                    41              75              129             385             439