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] [9.4% done] [  9992/ 46348 kb/s] [eta 00m:29s]
Threads: 3: [FmF] [50.0% done] [  1636/ 95488 kb/s] [eta 00m:04s]
Threads: 3: [FmF] [55.6% done] [  1016/  8720 kb/s] [eta 00m:04s]
Threads: 3: [FmF] [66.7% done] [   276/  7676 kb/s] [eta 00m:03s]
Threads: 3: [FmF] [63.6% done] [   424/  3732 kb/s] [eta 00m:04s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=14540, got signal=6
Threads: 2: [F_F] [100.0% done] [   108/  5032 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: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=14541, got signal=6
Threads: 1: [V__] [80.0% done] [ 18560/     0 kb/s] [eta 00m:04s]
Threads: 1: [V__] [100.0% done] [ 31438/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [100.0% done] [ 31340/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=14539
  read : io=100MiB, bw=5,591KiB/s, runt= 18753msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  422, avg=29.19, stdev=60.43
    bw (KiB/s) : min=    1, max=34428, per=217.43%, avg=14511.33, stdev=13415.41
  write: io=88,244KiB, bw=5,765KiB/s, runt= 15672msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  130, avg= 0.53, stdev= 5.74
    bw (KiB/s) : min=    0, max=128761, per=360.76%, avg=64380.50, stdev=91047.78
  cpu          : usr=3.69%, sys=2.45%, ctx=4516
  IO depths    : 1=1.9%, 2=55.2%, 4=30.3%, 8=12.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.3%, 4=0.3%, 10=21.6%, 20=14.4%, 50=10.0%, 100=0.6%
     lat (msec): 250=2.3%, 500=1.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=14540
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=85.9%, 4=4.8%, 8=8.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=85.0%, 4=1.1%, 10=0.2%, 20=0.5%, 50=0.8%, 100=2.1%
     lat (msec): 250=4.2%, 500=4.3%, 750=1.1%, 1000=0.2%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=14541
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=93.1%, 4=2.5%, 8=4.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=93.5%, 4=0.9%, 10=0.0%, 20=0.0%, 50=0.2%, 100=0.5%
     lat (msec): 250=2.0%, 500=2.1%, 750=0.3%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=119MiB, aggrb=6,674KiB/s, minb=0KiB/s, maxb=5,591KiB/s, mint=0msec, maxt=18753msec
  WRITE: io=267MiB, aggrb=17,846KiB/s, minb=0KiB/s, maxb=5,765KiB/s, mint=0msec, maxt=18753msec

Disk stats (read/write):
  sda: ios=1599/2225, merge=681/65904, ticks=32300/1739128, in_queue=1772600, util=97.74%
2.15user 1.18system 0:19.28elapsed 17%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2486minor)pagefaults 0swaps