tests/expected/iolatencytop.txt

   1 Timerange: [1970-01-01 00:00:01.000000000, 1970-01-01 00:00:01.024000000]
   2
   3 Top system call latencies open (usec)
   4 Begin               End                  Name             Duration (usec)         Size  Proc                     PID      Filename
   5 [00:00:01.023000000,00:00:01.024000000]  open                    1000.000          N/A  app3                     101      test/open/file (fd=42)
   6
   7 Top system call latencies read (usec)
   8 Begin               End                  Name             Duration (usec)         Size  Proc                     PID      Filename
   9 [00:00:01.008000000,00:00:01.009000000]  read                    1000.000      100   B  app2                     100      testfile (fd=3)
  10 [00:00:01.012000000,00:00:01.013000000]  read                    1000.000       42   B  app3                     101      unknown (fd=3)
  11
  12 Top system call latencies write (usec)
  13 Begin               End                  Name             Duration (usec)         Size  Proc                     PID      Filename
  14 [00:00:01.004000000,00:00:01.005000000]  write                   1000.000       10   B  app                      99       unknown (fd=4)