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: 2
Threads: 2: [_Fm] [60.0% done] [ 12044/  3685 kb/s] [eta 00m:02s]
Threads: 2: [_Vm] [66.7% done] [ 13714/  7139 kb/s] [eta 00m:02s]
Threads: 1: [__F] [100.0% done] [ 14665/ 11873 kb/s] [eta 00m:00s]
Threads: 1: [__F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [__F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=5112
  read : io=100MiB, bw=76,038KiB/s, runt=  1379msec
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=83353, max=83673, per=201.08%, avg=83513.00, stdev=226.27
  cpu          : usr=83.54%, sys=3.48%, ctx=8
  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=99.8%, 4=0.0%, 10=0.0%, 20=0.0%, 50=0.0%, 100=0.0%
     lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5113
  read : io=100MiB, bw=26,142KiB/s, runt=  4011msec
    clat (msec): min=    0, max=  124, avg= 0.54, stdev= 5.59
    bw (KiB/s) : min=   24, max=51392, per=66.81%, avg=27747.00, stdev=25518.70
  write: io=27,788KiB, bw=7,464KiB/s, runt=  3812msec
    clat (msec): min=    0, max=   31, avg= 0.40, stdev= 3.13
    bw (KiB/s) : min=    0, max=    0, per=0.00%, avg= 0.00, stdev=-1.00
  cpu          : usr=32.91%, sys=2.39%, ctx=271
  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=97.8%, 4=0.3%, 10=0.4%, 20=0.5%, 50=0.5%, 100=0.3%
     lat (msec): 250=0.1%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5114
  read : io=100MiB, bw=13,844KiB/s, runt=  7574msec
    clat (msec): min=    0, max= 1431, avg= 1.31, stdev=34.89
    bw (KiB/s) : min=   44, max=38731, per=29.89%, avg=12415.33, stdev=18000.06
  write: io=62,056KiB, bw=8,795KiB/s, runt=  7225msec
    clat (msec): min=    0, max=   63, avg= 1.12, stdev= 4.40
    bw (KiB/s) : min=    0, max=29891, per=118.56%, avg=15096.80, stdev=14170.28
  cpu          : usr=16.85%, sys=2.69%, ctx=1411
  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=93.6%, 4=0.9%, 10=2.4%, 20=2.4%, 50=0.4%, 100=0.1%
     lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=41,533KiB/s, minb=13,844KiB/s, maxb=76,038KiB/s, mint=1379msec, maxt=7574msec
  WRITE: io=89,844KiB, aggrb=12,733KiB/s, minb=0KiB/s, maxb=8,795KiB/s, mint=1379msec, maxt=7574msec

Disk stats (read/write):
  sda: ios=1615/818, merge=0/21683, ticks=4532/468236, in_queue=472768, util=81.50%
3.76user 0.37system 0:08.17elapsed 50%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (1615major+98598minor)pagefaults 0swaps