fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=sync, iodepth=1
...
fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=sync, iodepth=1
Starting 3 threads
Threads: 3
Threads: 3
Threads: 3: [mmm] [8.3% done] [ 10569/  4965 kb/s] [eta 00m:33s]
Threads: 3: [mmm] [11.1% done] [ 13486/  4002 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [13.9% done] [  3584/ 11979 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [17.1% done] [  6261/  8708 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [18.9% done] [  6070/  7074 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [21.1% done] [ 11589/  1479 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [23.1% done] [  9341/   438 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [26.3% done] [  9581/  2913 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [28.9% done] [  7135/  5091 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [30.0% done] [  4957/  5701 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [32.5% done] [  3141/  9402 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [35.0% done] [  6253/  5481 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [39.5% done] [  2629/ 10829 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [41.0% done] [  6330/  3953 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [41.5% done] [  6322/  4221 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [45.0% done] [  8167/  1324 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [46.3% done] [  5757/  2803 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [48.8% done] [  3835/  4542 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [51.2% done] [  2641/  6956 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [53.7% done] [  4096/  4465 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [54.8% done] [  6013/  1235 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [55.8% done] [  2417/  4681 kb/s] [eta 00m:19s]
Threads: 3: [mVm] [55.6% done] [ 11162/  1259 kb/s] [eta 00m:20s]
Threads: 3: [mVm] [56.5% done] [ 13137/   195 kb/s] [eta 00m:20s]
Threads: 3: [mVm] [57.4% done] [ 14908/    56 kb/s] [eta 00m:20s]
Threads: 2: [m_m] [57.1% done] [  9654/   211 kb/s] [eta 00m:21s]
Threads: 2: [m_V] [58.0% done] [ 13202/    56 kb/s] [eta 00m:21s]
Threads: 2: [m_V] [58.8% done] [ 14331/  1568 kb/s] [eta 00m:21s]
Threads: 2: [m_V] [59.6% done] [ 20232/     0 kb/s] [eta 00m:21s]
Threads: 1: [m__] [65.3% done] [  1686/  8118 kb/s] [eta 00m:17s]
Threads: 1: [V__] [71.7% done] [  9975/   963 kb/s] [eta 00m:13s]
Threads: 1: [V__] [89.5% done] [ 26603/     0 kb/s] [eta 00m:04s]
Threads: 1: [V__] [100.0% done] [ 22150/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=1342
  read : io=100MiB, bw=2,957KiB/s, runt= 35451msec
    clat (msec): min=    0, max=  155, avg=12.42, stdev=24.12
    bw (KiB/s) : min=    7, max=29222, per=40.62%, avg=3603.90, stdev=6559.42
  write: io=56,944KiB, bw=1,767KiB/s, runt= 32982msec
    clat (msec): min=    0, max=  375, avg=13.43, stdev=36.51
    bw (KiB/s) : min=    0, max= 9576, per=65.14%, avg=2932.12, stdev=2797.86
  cpu          : usr=2.99%, sys=0.32%, ctx=2616
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.9%, 4=7.5%, 10=16.3%, 20=9.4%, 50=9.3%, 100=4.6%
     lat (msec): 250=2.8%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1343
  read : io=100MiB, bw=3,778KiB/s, runt= 27754msec
    clat (msec): min=    0, max=  110, avg=10.79, stdev=12.51
    bw (KiB/s) : min=   23, max=15516, per=46.98%, avg=4168.57, stdev=3888.89
  write: io=40,924KiB, bw=1,711KiB/s, runt= 24484msec
    clat (msec): min=    0, max=  258, avg=11.04, stdev=26.52
    bw (KiB/s) : min=    0, max= 9779, per=72.04%, avg=3242.37, stdev=3093.37
  cpu          : usr=3.44%, sys=0.33%, ctx=2370
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=33.0%, 4=8.5%, 10=23.4%, 20=17.7%, 50=14.4%, 100=2.2%
     lat (msec): 250=0.7%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1344
  read : io=100MiB, bw=3,333KiB/s, runt= 31455msec
    clat (msec): min=    0, max=  154, avg=12.33, stdev=18.43
    bw (KiB/s) : min=   11, max=21978, per=46.41%, avg=4117.91, stdev=5092.72
  write: io=47,112KiB, bw=1,700KiB/s, runt= 28365msec
    clat (msec): min=    0, max=  333, avg=14.04, stdev=31.36
    bw (KiB/s) : min=    0, max= 9154, per=70.08%, avg=3154.26, stdev=2906.56
  cpu          : usr=2.98%, sys=0.45%, ctx=2299
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=34.7%, 4=8.2%, 10=22.0%, 20=16.8%, 50=12.0%, 100=4.4%
     lat (msec): 250=1.7%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=8,873KiB/s, minb=2,957KiB/s, maxb=3,778KiB/s, mint=27754msec, maxt=35451msec
  WRITE: io=142MiB, aggrb=4,501KiB/s, minb=1,700KiB/s, maxb=1,767KiB/s, mint=27754msec, maxt=35451msec

Disk stats (read/write):
  sda: ios=5606/2775, merge=929/331, ticks=73432/166748, in_queue=240176, util=98.25%
2.96user 0.41system 0:35.76elapsed 9%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+1077minor)pagefaults 0swaps