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] [8.3% done] [ 10047/  2942 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [10.8% done] [  6852/  5470 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [14.7% done] [  5316/  9184 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [17.6% done] [   665/ 12847 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [20.0% done] [  7487/  4009 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [22.2% done] [  4556/  6872 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [24.3% done] [  7938/  3269 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [27.0% done] [  7356/  2768 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [28.9% done] [  4712/  3848 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [30.8% done] [  5456/  4000 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [32.5% done] [  7600/  1380 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [34.1% done] [  6336/  2660 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [36.6% done] [  5430/  4705 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [39.0% done] [  4668/  5708 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [41.5% done] [  5840/  3156 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [42.9% done] [  5596/  3372 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [45.2% done] [  3548/  6452 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [46.5% done] [  3268/  3448 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [48.8% done] [  1820/  6840 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [50.0% done] [  1544/  6392 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [52.3% done] [  2280/  5744 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [53.3% done] [  3356/  2768 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [54.3% done] [  4904/  1252 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [56.5% done] [  3052/  3916 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [57.4% done] [  3752/  3224 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [58.3% done] [  3548/  3436 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [58.0% done] [  2592/  3596 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [58.8% done] [  6207/  1143 kb/s] [eta 00m:21s]
Threads: 3: [Vmm] [58.5% done] [  9132/  1184 kb/s] [eta 00m:22s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=8812, got signal=6
Threads: 2: [V_m] [59.3% done] [ 15912/  1440 kb/s] [eta 00m:22s]
Threads: 2: [V_m] [60.0% done] [ 22448/     0 kb/s] [eta 00m:22s]
Threads: 1: [__m] [61.8% done] [ 10283/  2155 kb/s] [eta 00m:21s]
Threads: 1: [__m] [67.3% done] [  7100/     0 kb/s] [eta 00m:17s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=8813, got signal=6

fio: (groupid=0): err= 0: pid=8811
  read : io=100MiB, bw=3,055KiB/s, runt= 34310msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  424, avg=99.56, stdev=95.30
    bw (KiB/s) : min=   33, max=22438, per=56.33%, avg=3571.02, stdev=5121.68
  write: io=51,340KiB, bw=1,714KiB/s, runt= 30657msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  262, avg=114.62, stdev=63.35
    bw (KiB/s) : min=    0, max= 6373, per=49.79%, avg=2424.81, stdev=1784.35
  cpu          : usr=0.05%, sys=0.41%, ctx=6768
  IO depths    : 1=0.7%, 2=4.3%, 4=32.9%, 8=62.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.6%, 4=0.0%, 10=6.8%, 20=11.8%, 50=24.4%, 100=7.6%
     lat (msec): 250=44.9%, 500=3.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=8812
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=1.2%, 4=17.2%, 8=81.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.0%, 10=0.9%, 20=3.4%, 50=12.8%, 100=4.3%
     lat (msec): 250=65.8%, 500=11.9%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=8813
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.5%, 4=18.4%, 8=80.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.0%, 10=0.5%, 20=2.2%, 50=20.9%, 100=2.2%
     lat (msec): 250=59.6%, 500=11.1%, 750=1.4%, 1000=1.2%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=207MiB, aggrb=6,340KiB/s, minb=0KiB/s, maxb=3,055KiB/s, mint=0msec, maxt=34310msec
  WRITE: io=142MiB, aggrb=4,870KiB/s, minb=0KiB/s, maxb=1,714KiB/s, mint=0msec, maxt=34310msec

Disk stats (read/write):
  sda: ios=4051/2468, merge=594/521, ticks=80880/45456, in_queue=126336, util=99.33%
0.10user 0.29system 0:36.35elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2509minor)pagefaults 0swaps