fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=libaio, iodepth=8
...
fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=libaio, iodepth=8
Starting 3 threads
Threads: 3
Threads: 3
Threads: 3: [mmm] [11.1% done] [ 21117/     0 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [13.8% done] [ 17062/  4311 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [19.2% done] [  8773/  9618 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [21.4% done] [ 12787/  2763 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [24.1% done] [ 12361/  5400 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [26.7% done] [  3832/ 12462 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [29.0% done] [  8630/  7233 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [30.3% done] [  1544/ 13941 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [32.4% done] [ 13230/  1117 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [33.3% done] [ 13092/  3023 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [37.1% done] [ 14057/   341 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [36.8% done] [ 12308/     0 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [38.5% done] [  5449/  7338 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [41.0% done] [  5575/  6534 kb/s] [eta 00m:23s]
Threads: 3: [mVm] [42.5% done] [  7805/  4291 kb/s] [eta 00m:23s]
Threads: 3: [mVm] [43.9% done] [ 12434/  3055 kb/s] [eta 00m:23s]
Threads: 3: [mVV] [45.2% done] [ 16217/   633 kb/s] [eta 00m:23s]
Threads: 3: [mVV] [47.6% done] [ 17468/     0 kb/s] [eta 00m:22s]
Threads: 3: [mVV] [52.5% done] [  8882/  6501 kb/s] [eta 00m:19s]
Threads: 2: [m_V] [56.4% done] [ 14080/    32 kb/s] [eta 00m:17s]
Threads: 1: [m__] [63.9% done] [ 13096/    89 kb/s] [eta 00m:13s]
Threads: 1: [V__] [72.7% done] [ 14096/     0 kb/s] [eta 00m:09s]
Threads: 1: [V__] [86.2% done] [ 21443/     0 kb/s] [eta 00m:04s]
fio: (groupid=0): err= 0: pid=3586
  read : io=100MiB, bw=4,155KiB/s, runt= 25232msec
    slat (msec): min=    0, max= 1729, avg=225.95, stdev=444.01
    clat (msec): min=    0, max=  953, avg=91.08, stdev=187.16
    bw (KiB/s) : min=   18, max=21690, per=40.91%, avg=5100.06, stdev=6025.00
  write: io=32,924KiB, bw=1,429KiB/s, runt= 23583msec
    slat (msec): min=    0, max=    1, avg= 0.00, stdev= 0.07
    clat (msec): min=    0, max=  863, avg=125.68, stdev=239.28
    bw (KiB/s) : min=    0, max=11775, per=70.55%, avg=2880.42, stdev=3661.33
  cpu          : usr=3.55%, sys=0.30%, ctx=1920
  IO depths    : 1=0.2%, 2=0.3%, 4=1.2%, 8=98.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=8.1%, 4=2.7%, 10=14.5%, 20=24.0%, 50=22.7%, 100=9.0%
     lat (msec): 250=7.3%, 500=4.1%, 750=3.3%, 1000=4.3%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=3587
  read : io=100MiB, bw=4,966KiB/s, runt= 21113msec
    slat (msec): min=    0, max= 4763, avg=869.38, stdev=1368.21
    clat (msec): min=    0, max=  805, avg=69.89, stdev=97.58
    bw (KiB/s) : min=   73, max=12070, per=45.17%, avg=5631.00, stdev=3366.87
  write: io=32,428KiB, bw=2,013KiB/s, runt= 16488msec
    slat (msec): min=    0, max=    1, avg= 0.00, stdev= 0.06
    clat (msec): min=    0, max=  843, avg=82.27, stdev=145.38
    bw (KiB/s) : min=    0, max= 8467, per=72.15%, avg=2945.72, stdev=2448.19
  cpu          : usr=4.49%, sys=0.32%, ctx=2106
  IO depths    : 1=0.2%, 2=0.3%, 4=1.9%, 8=97.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=9.8%, 4=1.8%, 10=9.6%, 20=15.1%, 50=25.0%, 100=16.9%
     lat (msec): 250=15.6%, 500=4.5%, 750=1.5%, 1000=0.3%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=3588
  read : io=100MiB, bw=4,674KiB/s, runt= 22433msec
    slat (msec): min=    0, max= 4427, avg=730.39, stdev=1314.11
    clat (msec): min=    0, max=  901, avg=80.78, stdev=116.30
    bw (KiB/s) : min=  171, max=12566, per=41.50%, avg=5174.11, stdev=3141.59
  write: io=28,692KiB, bw=1,641KiB/s, runt= 17895msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  836, avg=83.19, stdev=153.83
    bw (KiB/s) : min=    0, max= 9173, per=79.78%, avg=3257.47, stdev=3175.69
  cpu          : usr=3.53%, sys=0.34%, ctx=2042
  IO depths    : 1=0.1%, 2=0.2%, 4=1.1%, 8=98.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=8.2%, 4=1.4%, 10=9.6%, 20=15.1%, 50=25.3%, 100=16.5%
     lat (msec): 250=16.2%, 500=5.2%, 750=1.7%, 1000=0.7%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=12,467KiB/s, minb=4,155KiB/s, maxb=4,966KiB/s, mint=21113msec, maxt=25232msec
  WRITE: io=94,044KiB, aggrb=4,083KiB/s, minb=1,429KiB/s, maxb=2,013KiB/s, mint=21113msec, maxt=25232msec

Disk stats (read/write):
  sda: ios=5432/1770, merge=91/55, ticks=430452/163372, in_queue=593824, util=99.24%
2.69user 0.22system 0:25.57elapsed 11%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2384minor)pagefaults 0swaps