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: [mFm] [50.0% done] [ 12015/109627 kb/s] [eta 00m:03s]
Threads: 3: [FFm] [50.0% done] [  2527/  2832 kb/s] [eta 00m:04s]
Threads: 3: [FFm] [62.5% done] [   833/ 21207 kb/s] [eta 00m:03s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1040, got signal=6
Threads: 2: [FF_] [100.0% done] [   162/ 10063 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: [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: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [VV_] [81.2% done] [ 41586/     0 kb/s] [eta 00m:03s]
Threads: 2: [VV_] [100.0% done] [ 64230/     0 kb/s] [eta 00m:00s]
Threads: 2: [VV_] [100.0% done] [ 61533/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=1038
  read : io=100MiB, bw=6,822KiB/s, runt= 15366msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  356, avg=20.97, stdev=42.53
    bw (KiB/s) : min=    0, max=37688, per=98.56%, avg=14682.33, stdev=14513.57
  write: io=90,308KiB, bw=7,477KiB/s, runt= 12367msec
    slat (msec): min=    0, max=    3, avg= 0.00, stdev= 0.08
    clat (msec): min=    0, max=   86, avg= 0.95, stdev= 5.52
    bw (KiB/s) : min=    0, max=60620, per=134.50%, avg=29866.25, stdev=24886.53
  cpu          : usr=10.75%, sys=5.15%, ctx=9065
  IO depths    : 1=30.5%, 2=32.6%, 4=26.3%, 8=10.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=51.4%, 4=15.3%, 10=19.9%, 20=3.5%, 50=1.2%, 100=4.5%
     lat (msec): 250=3.8%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1039
  read : io=100MiB, bw=6,758KiB/s, runt= 15502msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  353, avg=17.69, stdev=39.78
    bw (KiB/s) : min=    3, max=39396, per=122.12%, avg=18192.89, stdev=15513.84
  write: io=96,328KiB, bw=7,976KiB/s, runt= 12367msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  156, avg= 1.33, stdev= 7.35
    bw (KiB/s) : min=    0, max=62251, per=163.88%, avg=36390.50, stdev=30487.61
  cpu          : usr=13.50%, sys=4.90%, ctx=5936
  IO depths    : 1=1.6%, 2=64.2%, 4=25.4%, 8=8.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=47.8%, 4=19.8%, 10=21.0%, 20=3.5%, 50=1.4%, 100=1.7%
     lat (msec): 250=4.2%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1040
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=16.0%, 2=62.9%, 4=4.8%, 8=16.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=67.8%, 4=9.7%, 10=2.1%, 20=0.8%, 50=6.5%, 100=5.4%
     lat (msec): 250=6.6%, 500=0.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=220MiB, aggrb=14,897KiB/s, minb=0KiB/s, maxb=6,822KiB/s, mint=0msec, maxt=15502msec
  WRITE: io=262MiB, aggrb=22,206KiB/s, minb=0KiB/s, maxb=7,976KiB/s, mint=0msec, maxt=15502msec

Disk stats (read/write):
  cciss!c0d0: ios=4110/3320, merge=1143/63631, ticks=32196/1353456, in_queue=1386008, util=95.88%
5.16user 2.05system 0:15.80elapsed 45%CPU (0avgtext+0avgdata 0maxresident)k
507120inputs+536424outputs (0major+2455minor)pagefaults 0swaps