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] [8.6% done] [  8932/  3776 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [11.1% done] [  5490/  6423 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [13.9% done] [  8290/  5214 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [16.2% done] [  8893/  1839 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [18.9% done] [  6531/  5918 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [22.2% done] [  7475/  3280 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [25.0% done] [  3812/  8818 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [27.0% done] [  5214/  4727 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [28.2% done] [  7857/  2508 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [30.8% done] [ 10570/     0 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [32.5% done] [  6059/  3461 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [35.9% done] [  4836/  5742 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [37.5% done] [  7317/  1472 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [39.0% done] [  4879/  4568 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [41.5% done] [  6750/  3225 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [43.9% done] [  6726/  1563 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [45.2% done] [  2457/  7254 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [46.5% done] [  4344/  3217 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [48.8% done] [  3335/  4442 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [50.0% done] [  5383/  1197 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [52.2% done] [  4777/  2630 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [53.2% done] [  6537/     0 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [54.2% done] [  5183/  1547 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [56.2% done] [  3938/  2617 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [58.3% done] [  7231/     0 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [58.0% done] [  7289/     0 kb/s] [eta 00m:21s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=5205, got signal=6
Threads: 2: [m_m] [60.0% done] [  5813/   740 kb/s] [eta 00m:20s]
Threads: 2: [m_m] [62.0% done] [  1744/  4647 kb/s] [eta 00m:19s]
Threads: 2: [m_m] [62.7% done] [  2867/  4367 kb/s] [eta 00m:19s]
Threads: 2: [V_m] [63.5% done] [ 11768/  1346 kb/s] [eta 00m:19s]
Threads: 2: [V_m] [64.2% done] [ 13449/   953 kb/s] [eta 00m:19s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 1: [__m] [67.3% done] [  5931/  4537 kb/s] [eta 00m:17s]
fio: pid=5206, got signal=6

fio: (groupid=0): err= 0: pid=5204
  read : io=100MiB, bw=3,017KiB/s, runt= 34745msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    7, max=  819, avg=135.41, stdev=110.69
    bw (KiB/s) : min=   13, max=16237, per=49.65%, avg=3166.92, stdev=3109.48
  write: io=30,652KiB, bw=968KiB/s, runt= 32401msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  272, avg=91.66, stdev=73.16
    bw (KiB/s) : min=    0, max= 6042, per=59.36%, avg=2277.00, stdev=2129.43
  cpu          : usr=0.07%, sys=0.26%, ctx=5451
  IO depths    : 1=0.9%, 2=4.2%, 4=29.4%, 8=65.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.2%, 4=0.0%, 10=1.0%, 20=10.3%, 50=27.0%, 100=8.6%
     lat (msec): 250=44.3%, 500=6.8%, 750=0.6%, 1000=0.1%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5205
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.7%, 4=19.8%, 8=79.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=1.8%, 50=20.8%, 100=7.1%
     lat (msec): 250=62.3%, 500=7.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5206
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=1.9%, 4=13.9%, 8=83.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=1.5%, 4=0.0%, 10=0.1%, 20=4.0%, 50=7.1%, 100=4.0%
     lat (msec): 250=71.5%, 500=9.3%, 750=1.4%, 1000=0.7%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=211MiB, aggrb=6,378KiB/s, minb=0KiB/s, maxb=3,017KiB/s, mint=0msec, maxt=34745msec
  WRITE: io=119MiB, aggrb=3,836KiB/s, minb=0KiB/s, maxb=968KiB/s, mint=0msec, maxt=34745msec

Disk stats (read/write):
  sda: ios=3917/2158, merge=499/348, ticks=80820/38776, in_queue=119592, util=98.98%
0.15user 0.37system 0:35.81elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2505minor)pagefaults 0swaps