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] [ 15770/  3502 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [16.0% done] [ 13068/  6753 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [20.0% done] [ 13206/  6119 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [24.0% done] [  9634/  8053 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [28.0% done] [ 12218/  4275 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [30.8% done] [ 10761/  5805 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [34.6% done] [ 13275/  2117 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [37.0% done] [ 11133/  4148 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [40.7% done] [  6749/  8874 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [44.4% done] [  6867/  9366 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [48.1% done] [  5083/  8476 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [50.0% done] [  7094/  6091 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [51.7% done] [  5973/  5656 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [55.2% done] [  6452/  4603 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [56.7% done] [  2767/  7866 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [58.1% done] [  6481/  2783 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [61.3% done] [  4559/  4668 kb/s] [eta 00m:12s]
Threads: 3: [mVm] [60.6% done] [  3449/  6842 kb/s] [eta 00m:13s]
Threads: 3: [mVm] [61.8% done] [ 19401/   484 kb/s] [eta 00m:13s]
Threads: 3: [mVm] [61.1% done] [ 18899/   524 kb/s] [eta 00m:14s]
Threads: 2: [m_m] [62.2% done] [ 11543/  1248 kb/s] [eta 00m:14s]
Threads: 2: [V_m] [63.2% done] [ 17135/  1487 kb/s] [eta 00m:14s]
Threads: 2: [V_m] [64.1% done] [ 21971/     0 kb/s] [eta 00m:14s]
Threads: 1: [__m] [66.7% done] [ 12344/     0 kb/s] [eta 00m:13s]
Threads: 1: [__V] [77.1% done] [ 16924/     0 kb/s] [eta 00m:08s]
fio: (groupid=0): err= 0: pid=23053
  read : io=100MiB, bw=4,086KiB/s, runt= 25662msec
    clat (msec): min=    0, max=  128, avg= 9.07, stdev=14.31
    bw (KiB/s) : min=   19, max=23846, per=42.33%, avg=4775.68, stdev=5972.90
  write: io=44,616KiB, bw=1,962KiB/s, runt= 23274msec
    clat (msec): min=    0, max=  165, avg=10.16, stdev=23.52
    bw (KiB/s) : min=    0, max= 8753, per=71.26%, avg=3188.29, stdev=2910.06
  cpu          : usr=4.02%, sys=0.26%, ctx=2506
  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=43.8%, 4=7.7%, 10=19.9%, 20=14.6%, 50=10.7%, 100=2.1%
     lat (msec): 250=1.2%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=23054
  read : io=100MiB, bw=4,624KiB/s, runt= 22673msec
    clat (msec): min=    0, max=   93, avg= 8.09, stdev=10.31
    bw (KiB/s) : min=   19, max=21245, per=53.23%, avg=6004.73, stdev=5712.83
  write: io=47,580KiB, bw=2,456KiB/s, runt= 19834msec
    clat (msec): min=    0, max=  368, avg= 8.61, stdev=23.30
    bw (KiB/s) : min=    0, max= 8744, per=94.85%, avg=4243.62, stdev=3255.84
  cpu          : usr=4.57%, sys=0.42%, ctx=2494
  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=46.3%, 4=6.4%, 10=18.9%, 20=16.3%, 50=10.0%, 100=1.7%
     lat (msec): 250=0.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=23055
  read : io=100MiB, bw=3,760KiB/s, runt= 27883msec
    clat (msec): min=    0, max=  203, avg=12.53, stdev=18.16
    bw (KiB/s) : min=   14, max=18334, per=37.85%, avg=4269.58, stdev=3684.99
  write: io=23,036KiB, bw=894KiB/s, runt= 26369msec
    clat (msec): min=    0, max=  282, avg=16.30, stdev=36.25
    bw (KiB/s) : min=    0, max= 7671, per=44.80%, avg=2004.56, stdev=2356.21
  cpu          : usr=2.83%, sys=0.22%, ctx=1965
  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=30.0%, 4=8.5%, 10=23.1%, 20=19.5%, 50=13.8%, 100=2.3%
     lat (msec): 250=2.6%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=11,281KiB/s, minb=3,760KiB/s, maxb=4,624KiB/s, mint=22673msec, maxt=27883msec
  WRITE: io=113MiB, aggrb=4,474KiB/s, minb=894KiB/s, maxb=2,456KiB/s, mint=22673msec, maxt=27883msec

Disk stats (read/write):
  sda: ios=5015/2303, merge=870/306, ticks=51344/33660, in_queue=85000, util=98.47%
2.86user 0.26system 0:28.25elapsed 11%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+1066minor)pagefaults 0swaps