fio-results-mirror-btrfs.txt

seqread-128k: (g=0): rw=read, bs=128K-128K/128K-128K/128K-128K, ioengine=libaio, iodepth=1
seqwrite-128k: (g=1): rw=write, bs=128K-128K/128K-128K/128K-128K, ioengine=libaio, iodepth=1
randread-4k: (g=2): rw=randread, bs=4K-4K/4K-4K/4K-4K, ioengine=libaio, iodepth=16
randwrite-4k: (g=3): rw=randwrite, bs=4K-4K/4K-4K/4K-4K, ioengine=libaio, iodepth=16
fio-2.13
Starting 4 processes
seqread-128k: Laying out IO file(s) (1 file(s) / 1024MB)
seqwrite-128k: Laying out IO file(s) (1 file(s) / 1024MB)
randread-4k: Laying out IO file(s) (1 file(s) / 1024MB)
randwrite-4k: Laying out IO file(s) (1 file(s) / 1024MB)
Jobs: 1 (f=0): [_(3),f(1)] [100.0% done] [0KB/1220KB/0KB /s] [0/305/0 iops] [eta 00m:00s]          
seqread-128k: (groupid=0, jobs=1): err= 0: pid=15294: Tue Sep 13 07:29:27 2016
  read : io=27763MB, bw=94763KB/s, iops=740, runt=300001msec
    slat (usec): min=95, max=1238, avg=181.84, stdev=10.14
    clat (usec): min=488, max=275771, avg=1152.81, stdev=1744.36
     lat (usec): min=948, max=275975, avg=1336.33, stdev=1744.60
    clat percentiles (usec):
     |  1.00th=[  940],  5.00th=[ 1112], 10.00th=[ 1112], 20.00th=[ 1112],
     | 30.00th=[ 1128], 40.00th=[ 1128], 50.00th=[ 1128], 60.00th=[ 1144],
     | 70.00th=[ 1144], 80.00th=[ 1144], 90.00th=[ 1176], 95.00th=[ 1224],
     | 99.00th=[ 1352], 99.50th=[ 1384], 99.90th=[ 1480], 99.95th=[ 1656],
     | 99.99th=[11456]
    bw (KB  /s): min=  186, max=101257, per=79.00%, avg=74858.48, stdev=12287.69
    lat (usec) : 500=0.01%, 1000=3.18%
    lat (msec) : 2=96.78%, 4=0.01%, 10=0.02%, 20=0.01%, 50=0.01%
    lat (msec) : 100=0.01%, 250=0.01%, 500=0.01%
  cpu          : usr=2.31%, sys=15.74%, ctx=226033, majf=0, minf=43
  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    : total=r=222101/w=0/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
     latency   : target=0, window=0, percentile=100.00%, depth=1
seqwrite-128k: (groupid=1, jobs=1): err= 0: pid=15299: Tue Sep 13 07:29:27 2016
  write: io=28840MB, bw=98412KB/s, iops=768, runt=300092msec
    slat (usec): min=27, max=2194, avg=294.83, stdev=210.72
    clat (usec): min=3, max=98167, avg=989.37, stdev=652.39
     lat (usec): min=947, max=98278, avg=1285.98, stdev=621.85
    clat percentiles (usec):
     |  1.00th=[    7],  5.00th=[  820], 10.00th=[  876], 20.00th=[  908],
     | 30.00th=[  924], 40.00th=[  940], 50.00th=[  956], 60.00th=[ 1004],
     | 70.00th=[ 1048], 80.00th=[ 1128], 90.00th=[ 1208], 95.00th=[ 1304],
     | 99.00th=[ 1480], 99.50th=[ 1544], 99.90th=[ 1880], 99.95th=[ 2160],
     | 99.99th=[22656]
    bw (KB  /s): min=48345, max=106362, per=87.47%, avg=86081.07, stdev=8685.23
    lat (usec) : 4=0.01%, 10=3.53%, 20=0.01%, 50=0.01%, 100=0.01%
    lat (usec) : 250=0.01%, 500=0.01%, 750=0.07%, 1000=55.91%
    lat (msec) : 2=40.38%, 4=0.04%, 10=0.01%, 20=0.01%, 50=0.01%
    lat (msec) : 100=0.01%
  cpu          : usr=2.69%, sys=9.50%, ctx=541676, majf=0, minf=9
  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    : total=r=0/w=230723/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
     latency   : target=0, window=0, percentile=100.00%, depth=1
randread-4k: (groupid=2, jobs=1): err= 0: pid=15312: Tue Sep 13 07:29:27 2016
  read : io=394980KB, bw=1316.2KB/s, iops=329, runt=300096msec
    slat (usec): min=22, max=96114, avg=125.19, stdev=1031.44
    clat (usec): min=464, max=794191, avg=48479.66, stdev=50895.86
     lat (usec): min=564, max=794300, avg=48606.45, stdev=50888.78
    clat percentiles (msec):
     |  1.00th=[    3],  5.00th=[    9], 10.00th=[   11], 20.00th=[   15],
     | 30.00th=[   19], 40.00th=[   25], 50.00th=[   32], 60.00th=[   41],
     | 70.00th=[   53], 80.00th=[   73], 90.00th=[  110], 95.00th=[  149],
     | 99.00th=[  251], 99.50th=[  293], 99.90th=[  408], 99.95th=[  457],
     | 99.99th=[  619]
    bw (KB  /s): min=  614, max= 1487, per=87.32%, avg=1149.17, stdev=121.87
    lat (usec) : 500=0.01%, 750=0.01%, 1000=0.01%
    lat (msec) : 2=0.11%, 4=1.58%, 10=6.24%, 20=24.56%, 50=35.64%
    lat (msec) : 100=20.18%, 250=10.67%, 500=0.97%, 750=0.04%, 1000=0.01%
  cpu          : usr=1.08%, sys=4.51%, ctx=100012, majf=0, minf=24
  IO depths    : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=100.0%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued    : total=r=98745/w=0/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
     latency   : target=0, window=0, percentile=100.00%, depth=16
randwrite-4k: (groupid=3, jobs=1): err= 0: pid=15313: Tue Sep 13 07:29:27 2016
  write: io=1295.9MB, bw=4419.4KB/s, iops=1104, runt=300243msec
    slat (usec): min=14, max=114224, avg=105.73, stdev=419.81
    clat (usec): min=352, max=249886, avg=14350.66, stdev=22965.70
     lat (usec): min=711, max=249946, avg=14457.59, stdev=22977.36
    clat percentiles (msec):
     |  1.00th=[    3],  5.00th=[    4], 10.00th=[    4], 20.00th=[    4],
     | 30.00th=[    4], 40.00th=[    5], 50.00th=[    5], 60.00th=[    7],
     | 70.00th=[   12], 80.00th=[   23], 90.00th=[   36], 95.00th=[   47],
     | 99.00th=[  149], 99.50th=[  163], 99.90th=[  184], 99.95th=[  190],
     | 99.99th=[  200]
    bw (KB  /s): min=  616, max=18379, per=100.00%, avg=4431.33, stdev=4843.10
    lat (usec) : 500=0.01%, 750=0.01%, 1000=0.11%
    lat (msec) : 2=0.54%, 4=39.28%, 10=27.33%, 20=10.51%, 50=17.98%
    lat (msec) : 100=2.43%, 250=1.80%
  cpu          : usr=2.14%, sys=11.76%, ctx=230894, majf=0, minf=15
  IO depths    : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=100.0%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued    : total=r=0/w=331721/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
     latency   : target=0, window=0, percentile=100.00%, depth=16

Run status group 0 (all jobs):
   READ: io=27763MB, aggrb=94762KB/s, minb=94762KB/s, maxb=94762KB/s, mint=300001msec, maxt=300001msec

Run status group 1 (all jobs):
  WRITE: io=28840MB, aggrb=98411KB/s, minb=98411KB/s, maxb=98411KB/s, mint=300092msec, maxt=300092msec

Run status group 2 (all jobs):
   READ: io=394980KB, aggrb=1316KB/s, minb=1316KB/s, maxb=1316KB/s, mint=300096msec, maxt=300096msec

Run status group 3 (all jobs):
  WRITE: io=1295.9MB, aggrb=4419KB/s, minb=4419KB/s, maxb=4419KB/s, mint=300243msec, maxt=300243msec