fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=mmap, iodepth=1
...
fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=mmap, iodepth=1
Starting 3 threads
Threads: 3
Threads: 3
Threads: 3: [mmm] [21.4% done] [ 41696/  2052 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [28.6% done] [ 18288/ 19264 kb/s] [eta 00m:10s]
Threads: 3: [mmm] [35.7% done] [ 21932/  8312 kb/s] [eta 00m:09s]
Threads: 3: [mmm] [42.9% done] [ 12660/ 23048 kb/s] [eta 00m:08s]
Threads: 3: [mmm] [50.0% done] [ 21088/  9188 kb/s] [eta 00m:07s]
Threads: 3: [mmm] [57.1% done] [ 11508/ 13268 kb/s] [eta 00m:06s]
Threads: 3: [mmm] [64.3% done] [ 11912/  5048 kb/s] [eta 00m:05s]
Threads: 3: [mmm] [66.7% done] [  5968/  3880 kb/s] [eta 00m:05s]
Threads: 3: [mmm] [68.8% done] [  5896/  2196 kb/s] [eta 00m:05s]
Threads: 3: [FFF] [100.0% done] [  4588/   844 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [EFF] [100.0% done] [ 30104/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=17849
  read : io=100MiB, bw=6,460KiB/s, runt= 16230msec
    clat (msec): min=    0, max=  364, avg= 4.55, stdev=25.94
    bw (KiB/s) : min=   21, max=18014, per=39.41%, avg=7421.83, stdev=6809.15
  write: io=30,104KiB, bw=1,920KiB/s, runt= 16055msec
    clat (msec): min=    0, max=  254, avg= 5.32, stdev=24.33
    bw (KiB/s) : min=    0, max=14024, per=88.22%, avg=5644.30, stdev=5655.63
  cpu          : usr=5.62%, sys=1.26%, ctx=3268
  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=84.3%, 4=1.6%, 10=5.2%, 20=6.0%, 50=0.7%, 100=0.5%
     lat (msec): 250=1.3%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=17850
  read : io=100MiB, bw=6,293KiB/s, runt= 16661msec
    clat (msec): min=    0, max=  384, avg= 4.56, stdev=27.91
    bw (KiB/s) : min=    2, max=16363, per=32.64%, avg=6146.42, stdev=5482.18
  write: io=33,256KiB, bw=2,067KiB/s, runt= 16470msec
    clat (msec): min=    0, max=  252, avg= 5.99, stdev=28.40
    bw (KiB/s) : min=    0, max=14598, per=81.35%, avg=5204.75, stdev=6188.97
  cpu          : usr=5.59%, sys=1.27%, ctx=2627
  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=86.8%, 4=1.5%, 10=4.3%, 20=4.6%, 50=0.5%, 100=0.2%
     lat (msec): 250=1.7%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=17851
  read : io=100MiB, bw=6,277KiB/s, runt= 16704msec
    clat (msec): min=    0, max=  334, avg= 3.93, stdev=27.21
    bw (KiB/s) : min=   11, max=15903, per=30.77%, avg=5794.70, stdev=5589.99
  write: io=39,604KiB, bw=2,461KiB/s, runt= 16477msec
    clat (msec): min=    0, max=  560, avg= 7.45, stdev=41.30
    bw (KiB/s) : min=    0, max=16187, per=71.91%, avg=4600.60, stdev=5339.92
  cpu          : usr=6.01%, sys=1.25%, ctx=1666
  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=91.6%, 4=1.0%, 10=2.2%, 20=2.7%, 50=0.3%, 100=0.3%
     lat (msec): 250=1.4%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=18,832KiB/s, minb=6,277KiB/s, maxb=6,460KiB/s, mint=16230msec, maxt=16704msec
  WRITE: io=101MiB, aggrb=6,398KiB/s, minb=1,920KiB/s, maxb=2,461KiB/s, mint=16230msec, maxt=16704msec

Disk stats (read/write):
  sda: ios=7414/1176, merge=0/24646, ticks=32340/898408, in_queue=930744, util=97.79%
2.85user 0.67system 0:17.04elapsed 20%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (7414major+96124minor)pagefaults 0swaps