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] [12.0% done] [ 17612/     0 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [16.0% done] [ 12103/  8268 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [20.0% done] [  8399/ 10288 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [23.1% done] [  8513/  9788 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [25.9% done] [  9378/  6127 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [28.6% done] [  4758/ 12942 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [33.3% done] [  6968/  9195 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [35.7% done] [  8236/  6022 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [39.3% done] [ 12966/     0 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [42.9% done] [  5636/  8248 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [44.8% done] [  8435/  4651 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [46.7% done] [  7392/  2556 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [48.4% done] [  6028/  6188 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [51.6% done] [  2308/  8952 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [54.8% done] [  1574/  9232 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [56.2% done] [  4583/  5091 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [57.6% done] [  6298/  1840 kb/s] [eta 00m:14s]
Threads: 3: [mVm] [60.6% done] [  8748/  2604 kb/s] [eta 00m:13s]
Threads: 3: [mVm] [60.0% done] [ 21390/   223 kb/s] [eta 00m:14s]
Threads: 3: [mVm] [59.5% done] [ 18510/   570 kb/s] [eta 00m:15s]
Threads: 2: [m_m] [62.2% done] [  9426/   845 kb/s] [eta 00m:14s]
Threads: 2: [m_V] [63.2% done] [  6209/  2299 kb/s] [eta 00m:14s]
Threads: 2: [m_V] [62.5% done] [ 17814/    77 kb/s] [eta 00m:15s]
Threads: 1: [m__] [63.4% done] [ 16050/     0 kb/s] [eta 00m:15s]
Threads: 1: [V__] [69.2% done] [  8338/  1909 kb/s] [eta 00m:12s]
Threads: 1: [V__] [84.8% done] [ 22784/     0 kb/s] [eta 00m:05s]
fio: (groupid=0): err= 0: pid=28778
  read : io=100MiB, bw=3,574KiB/s, runt= 29338msec
    clat (msec): min=    0, max=  138, avg= 9.79, stdev=16.97
    bw (KiB/s) : min=   34, max=24186, per=41.64%, avg=4465.00, stdev=5659.27
  write: io=44,364KiB, bw=1,666KiB/s, runt= 27259msec
    clat (msec): min=    0, max=  265, avg=15.25, stdev=33.57
    bw (KiB/s) : min=    0, max= 6288, per=51.33%, avg=2471.93, stdev=2394.75
  cpu          : usr=3.31%, sys=0.45%, ctx=2397
  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=40.8%, 4=8.4%, 10=21.9%, 20=14.2%, 50=9.2%, 100=3.1%
     lat (msec): 250=2.3%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=28779
  read : io=100MiB, bw=4,642KiB/s, runt= 22587msec
    clat (msec): min=    0, max=   90, avg= 8.24, stdev=10.26
    bw (KiB/s) : min=    7, max=23961, per=54.01%, avg=5790.66, stdev=6317.19
  write: io=47,920KiB, bw=2,470KiB/s, runt= 19863msec
    clat (msec): min=    0, max=  173, avg= 9.63, stdev=21.42
    bw (KiB/s) : min=    0, max= 9902, per=85.35%, avg=4110.57, stdev=3589.96
  cpu          : usr=4.07%, sys=0.66%, ctx=2359
  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=41.7%, 4=8.1%, 10=22.0%, 20=14.6%, 50=10.6%, 100=2.5%
     lat (msec): 250=0.3%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=28780
  read : io=100MiB, bw=3,987KiB/s, runt= 26296msec
    clat (msec): min=    0, max=  130, avg=10.20, stdev=14.99
    bw (KiB/s) : min=    2, max=18684, per=42.10%, avg=4513.50, stdev=4759.19
  write: io=35,928KiB, bw=1,536KiB/s, runt= 23939msec
    clat (msec): min=    0, max=  206, avg=10.06, stdev=26.02
    bw (KiB/s) : min=    0, max= 8192, per=49.33%, avg=2375.81, stdev=2453.78
  cpu          : usr=3.32%, sys=0.49%, ctx=2386
  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=39.5%, 4=8.4%, 10=21.4%, 20=16.0%, 50=11.3%, 100=2.0%
     lat (msec): 250=1.5%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=10,722KiB/s, minb=3,574KiB/s, maxb=4,642KiB/s, mint=22587msec, maxt=29338msec
  WRITE: io=125MiB, aggrb=4,816KiB/s, minb=1,536KiB/s, maxb=2,470KiB/s, mint=22587msec, maxt=29338msec

Disk stats (read/write):
  sda: ios=5207/2379, merge=844/383, ticks=68524/51864, in_queue=120372, util=98.12%
2.77user 0.45system 0:29.70elapsed 10%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+1068minor)pagefaults 0swaps