fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=mmap, iodepth=1
...
fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=mmap, iodepth=1
Starting 3 threads
Threads: 3
Threads: 2
Threads: 1: [V__] [100.0% done] [ 22386/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=3767
  read : io=100MiB, bw=35,116KiB/s, runt=  2986msec
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    7, max=61145, per=19.45%, avg=20487.00, stdev=35211.18
  write: io=28,748KiB, bw=11,091KiB/s, runt=  2654msec
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=58810, per=265.12%, avg=29405.00, stdev=41584.95
  cpu          : usr=55.73%, sys=6.43%, ctx=28
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=99.9%, 4=0.0%, 10=0.0%, 20=0.0%, 50=0.0%, 100=0.0%
     lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=3768
  read : io=100MiB, bw=46,707KiB/s, runt=  2245msec
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=60950, max=60991, per=57.87%, avg=60970.50, stdev=28.99
  cpu          : usr=61.29%, sys=5.52%, ctx=8
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=99.8%, 4=0.0%, 10=0.0%, 20=0.0%, 50=0.0%, 100=0.0%
     lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=3769
  read : io=100MiB, bw=69,672KiB/s, runt=  1505msec
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=61537, max=61660, per=58.47%, avg=61598.50, stdev=86.97
  cpu          : usr=92.49%, sys=6.11%, ctx=5
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=99.8%, 4=0.0%, 10=0.0%, 20=0.0%, 50=0.0%, 100=0.0%
     lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=103MiB/s, minb=35,116KiB/s, maxb=69,672KiB/s, mint=1505msec, maxt=2986msec
  WRITE: io=28,748KiB, aggrb=11,091KiB/s, minb=0KiB/s, maxb=11,091KiB/s, mint=1505msec, maxt=2986msec

Disk stats (read/write):
  cciss!c0d0: ios=0/394, merge=0/6804, ticks=0/137676, in_queue=137676, util=37.22%
4.44user 0.42system 0:03.19elapsed 152%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+57528outputs (0major+84901minor)pagefaults 0swaps