fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=posixaio, iodepth=8
...
fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=posixaio, iodepth=8
Starting 3 threads
Threads: 3
Threads: 3
Threads: 3: [mmm] [12.5% done] [ 20061/  4026 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [17.4% done] [ 12450/  8919 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [21.7% done] [ 12995/  8025 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [26.1% done] [ 13654/  7236 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [31.8% done] [  8427/ 12117 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [34.8% done] [ 10982/  6841 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [39.1% done] [  9298/  8297 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [41.7% done] [  9029/  6605 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [45.8% done] [ 13039/  1373 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [48.0% done] [  9875/  3127 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [52.0% done] [  4950/  8895 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [53.8% done] [  5340/  7065 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [55.6% done] [  6015/  5389 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [59.3% done] [ 10168/  1655 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [60.7% done] [  5747/  3640 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [62.1% done] [  7162/  3123 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [65.5% done] [  4429/  3469 kb/s] [eta 00m:10s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=6005, got signal=6
Threads: 2: [m_V] [64.5% done] [  8598/   296 kb/s] [eta 00m:11s]
Threads: 2: [m_V] [65.6% done] [ 20793/     0 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 1: [m__] [66.7% done] [  6626/  3050 kb/s] [eta 00m:11s]
fio: pid=6004, got signal=6

fio: (groupid=0): err= 0: pid=6004
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=4.5%, 8=95.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.0%, 50=9.1%, 100=41.5%
     lat (msec): 250=45.6%, 500=2.7%, 750=0.6%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=6005
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=5.1%, 8=94.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.9%, 50=7.3%, 100=50.6%
     lat (msec): 250=40.2%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=6006
  read : io=100MiB, bw=4,841KiB/s, runt= 21568msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  487, avg=73.98, stdev=48.46
    bw (KiB/s) : min=   47, max=24486, per=47.07%, avg=5029.18, stdev=4607.20
  write: io=29,076KiB, bw=1,491KiB/s, runt= 19963msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=   63, max=  239, avg=111.29, stdev=26.00
    bw (KiB/s) : min=    0, max= 7351, per=48.19%, avg=2732.20, stdev=2495.60
  cpu          : usr=0.24%, sys=0.33%, ctx=7339
  IO depths    : 1=0.1%, 2=0.6%, 4=13.3%, 8=85.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.7%, 10=2.2%, 20=5.8%, 50=17.5%, 100=40.7%
     lat (msec): 250=32.2%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=220MiB, aggrb=10,684KiB/s, minb=0KiB/s, maxb=4,841KiB/s, mint=21568msec, maxt=21568msec
  WRITE: io=108MiB, aggrb=5,670KiB/s, minb=0KiB/s, maxb=1,491KiB/s, mint=21568msec, maxt=21568msec

Disk stats (read/write):
  cciss!c0d0: ios=3892/2174, merge=793/170, ticks=44508/33748, in_queue=78252, util=98.87%
0.18user 0.59system 0:22.81elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
450456inputs+221120outputs (0major+2447minor)pagefaults 0swaps