128m: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
...
128m: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
fio 1.57
Starting 32 processes

128m: (groupid=0, jobs=32): err= 0: pid=11782
  write: io=654340KB, bw=65414KB/s, iops=16353 , runt= 10003msec
    clat (usec): min=310 , max=35341 , avg=1652.88, stdev=210.42
     lat (usec): min=311 , max=35342 , avg=1653.79, stdev=210.42
    bw (KB/s) : min= 1792, max= 2714, per=3.71%, avg=2426.94, stdev=25.33
  cpu          : usr=0.04%, sys=0.14%, ctx=164469, majf=0, minf=971
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued r/w/d: total=0/163585/0, short=0/0/0
     lat (usec): 500=0.47%, 750=4.68%, 1000=7.90%
     lat (msec): 2=47.53%, 4=36.46%, 10=2.75%, 20=0.15%, 50=0.06%

Run status group 0 (all jobs):
  WRITE: io=654340KB, aggrb=65414KB/s, minb=66984KB/s, maxb=66984KB/s, mint=10003msec, maxt=10003msec

Disk stats (read/write):
  sda1: ios=0/162995, merge=0/20, ticks=0/315744, in_queue=315880, util=99.00%
