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] [25.0% done] [ 11738/ 64185 kb/s] [eta 00m:09s]
Threads: 3: [mmm] [44.4% done] [ 13817/ 71954 kb/s] [eta 00m:05s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=9001, got signal=6
Threads: 2: [m_F] [45.5% done] [  7273/ 55629 kb/s] [eta 00m:06s]
Threads: 2: [m_F] [50.0% done] [  1570/     0 kb/s] [eta 00m:06s]
Threads: 2: [m_F] [50.0% done] [  1537/     0 kb/s] [eta 00m:07s]
Threads: 2: [m_F] [61.5% done] [  1309/ 20414 kb/s] [eta 00m:05s]
Threads: 2: [F_F] [100.0% done] [   341/  8407 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [V_V] [76.2% done] [ 38412/     0 kb/s] [eta 00m:05s]
Threads: 2: [V_V] [100.0% done] [ 57884/     0 kb/s] [eta 00m:00s]
Threads: 1: [__V] [100.0% done] [ 56709/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=9000
  read : io=100MiB, bw=5,868KiB/s, runt= 17867msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  423, avg=43.07, stdev=77.73
    bw (KiB/s) : min=    0, max=41228, per=68.26%, avg=8507.05, stdev=11337.26
  write: io=72,092KiB, bw=4,813KiB/s, runt= 15335msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  295, avg= 2.68, stdev=16.79
    bw (KiB/s) : min=    0, max=21539, per=70.44%, avg=11258.50, stdev=10113.38
  cpu          : usr=7.86%, sys=4.16%, ctx=7955
  IO depths    : 1=15.5%, 2=37.3%, 4=28.4%, 8=18.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=42.4%, 4=12.2%, 10=22.3%, 20=5.7%, 50=3.1%, 100=4.4%
     lat (msec): 250=7.1%, 500=2.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=9001
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=86.5%, 4=2.8%, 8=10.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=72.4%, 4=13.3%, 10=1.4%, 20=0.2%, 50=3.3%, 100=2.4%
     lat (msec): 250=6.3%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=9002
  read : io=100MiB, bw=5,766KiB/s, runt= 18184msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  378, avg=25.58, stdev=50.57
    bw (KiB/s) : min=    0, max=47157, per=109.49%, avg=13645.14, stdev=14427.56
  write: io=81,492KiB, bw=5,441KiB/s, runt= 15335msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  142, avg= 1.37, stdev= 8.99
    bw (KiB/s) : min=    0, max=57204, per=164.18%, avg=26243.25, stdev=23527.91
  cpu          : usr=9.15%, sys=4.33%, ctx=9846
  IO depths    : 1=31.3%, 2=29.5%, 4=25.9%, 8=13.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.1%, 4=16.1%, 10=21.4%, 20=3.6%, 50=0.7%, 100=3.4%
     lat (msec): 250=6.2%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=216MiB, aggrb=12,463KiB/s, minb=0KiB/s, maxb=5,868KiB/s, mint=18184msec, maxt=18184msec
  WRITE: io=234MiB, aggrb=15,984KiB/s, minb=0KiB/s, maxb=5,441KiB/s, mint=18184msec, maxt=18184msec

Disk stats (read/write):
  cciss!c0d0: ios=4634/3800, merge=940/56015, ticks=44336/1598468, in_queue=1642800, util=95.59%
4.58user 2.10system 0:18.61elapsed 35%CPU (0avgtext+0avgdata 0maxresident)k
570344inputs+478928outputs (0major+2461minor)pagefaults 0swaps