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: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [VV_] [85.7% done] [ 30679/     0 kb/s] [eta 00m:01s]
fio: (groupid=0): err= 0: pid=4690
  read : io=100MiB, bw=16,079KiB/s, runt=  6521msec
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=98795, per=110.46%, avg=53286.00, stdev=49854.53
  write: io=72,584KiB, bw=12,915KiB/s, runt=  5755msec
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=59572, per=128.37%, avg=29786.00, stdev=42123.77
  cpu          : usr=29.44%, sys=6.50%, ctx=44
  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=4691
  read : io=100MiB, bw=16,468KiB/s, runt=  6367msec
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=   25, max=99000, per=68.46%, avg=33024.33, stdev=57136.60
  write: io=57,848KiB, bw=10,291KiB/s, runt=  5756msec
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=59047, per=169.55%, avg=39343.00, stdev=34072.05
  cpu          : usr=27.96%, sys=5.03%, ctx=195
  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=4692
  read : io=100MiB, bw=75,764KiB/s, runt=  1384msec
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=61227, max=61243, per=126.94%, avg=61235.00, stdev=11.31
  cpu          : usr=90.17%, sys=8.96%, ctx=34
  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=48,239KiB/s, minb=16,079KiB/s, maxb=75,764KiB/s, mint=1384msec, maxt=6521msec
  WRITE: io=127MiB, aggrb=23,204KiB/s, minb=0KiB/s, maxb=12,915KiB/s, mint=1384msec, maxt=6521msec

Disk stats (read/write):
  cciss!c0d0: ios=0/1397, merge=0/31216, ticks=0/642104, in_queue=642104, util=65.68%
4.95user 0.89system 0:06.74elapsed 86%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+260888outputs (0major+110353minor)pagefaults 0swaps