fio-results-single-disk-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/1268KB/0KB /s] [0/317/0 iops] [eta 00m:00s]          
seqread-128k: (groupid=0, jobs=1): err= 0: pid=14888: Tue Sep 13 06:03:33 2016
  read : io=29405MB, bw=100368KB/s, iops=784, runt=300002msec
    slat (usec): min=54, max=739, avg=165.56, stdev=12.12
    clat (usec): min=773, max=28921, avg=1093.55, stdev=118.89
     lat (usec): min=890, max=29063, avg=1260.84, stdev=119.86
    clat percentiles (usec):
     |  1.00th=[  900],  5.00th=[  964], 10.00th=[ 1064], 20.00th=[ 1080],
     | 30.00th=[ 1096], 40.00th=[ 1096], 50.00th=[ 1096], 60.00th=[ 1096],
     | 70.00th=[ 1096], 80.00th=[ 1112], 90.00th=[ 1128], 95.00th=[ 1160],
     | 99.00th=[ 1320], 99.50th=[ 1352], 99.90th=[ 1384], 99.95th=[ 1416],
     | 99.99th=[ 5728]
    bw (KB  /s): min=68648, max=98372, per=79.09%, avg=79376.16, stdev=6205.30
    lat (usec) : 1000=5.18%
    lat (msec) : 2=94.80%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.01%
  cpu          : usr=2.02%, sys=15.87%, ctx=245407, majf=0, minf=42
  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=235239/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=14894: Tue Sep 13 06:03:33 2016
  write: io=33383MB, bw=113914KB/s, iops=889, runt=300086msec
    slat (usec): min=129, max=4538, avg=373.41, stdev=152.22
    clat (usec): min=5, max=76497, avg=734.59, stdev=492.40
     lat (usec): min=788, max=77000, avg=1109.43, stdev=483.96
    clat percentiles (usec):
     |  1.00th=[    6],  5.00th=[  708], 10.00th=[  716], 20.00th=[  716],
     | 30.00th=[  724], 40.00th=[  724], 50.00th=[  732], 60.00th=[  740],
     | 70.00th=[  756], 80.00th=[  780], 90.00th=[  796], 95.00th=[  844],
     | 99.00th=[  980], 99.50th=[ 1020], 99.90th=[ 1320], 99.95th=[ 1448],
     | 99.99th=[16768]
    bw (KB  /s): min=57613, max=121290, per=85.66%, avg=97578.16, stdev=12771.68
    lat (usec) : 10=3.06%, 20=0.01%, 50=0.01%, 100=0.01%, 250=0.01%
    lat (usec) : 500=0.01%, 750=62.84%, 1000=33.39%
    lat (msec) : 2=0.68%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.01%
    lat (msec) : 100=0.01%
  cpu          : usr=2.88%, sys=32.37%, ctx=295229, 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=267062/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=14908: Tue Sep 13 06:03:33 2016
  read : io=384368KB, bw=1281.2KB/s, iops=320, runt=300017msec
    slat (usec): min=22, max=90736, avg=124.70, stdev=1027.42
    clat (usec): min=351, max=702788, avg=49810.65, stdev=52213.31
     lat (usec): min=382, max=702896, avg=49936.90, stdev=52204.94
    clat percentiles (msec):
     |  1.00th=[    3],  5.00th=[    9], 10.00th=[   12], 20.00th=[   15],
     | 30.00th=[   19], 40.00th=[   24], 50.00th=[   32], 60.00th=[   41],
     | 70.00th=[   55], 80.00th=[   76], 90.00th=[  115], 95.00th=[  155],
     | 99.00th=[  253], 99.50th=[  297], 99.90th=[  396], 99.95th=[  437],
     | 99.99th=[  594]
    bw (KB  /s): min=  566, max= 1430, per=85.79%, avg=1098.94, stdev=144.08
    lat (usec) : 500=0.01%, 750=0.01%, 1000=0.01%
    lat (msec) : 2=0.06%, 4=1.61%, 10=5.94%, 20=25.10%, 50=34.45%
    lat (msec) : 100=20.06%, 250=11.71%, 500=1.04%, 750=0.03%
  cpu          : usr=1.03%, sys=4.38%, ctx=96809, 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=96092/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=14912: Tue Sep 13 06:03:33 2016
  write: io=1386.8MB, bw=4726.3KB/s, iops=1181, runt=300457msec
    slat (usec): min=15, max=48268, avg=96.43, stdev=279.07
    clat (usec): min=309, max=220817, avg=13419.01, stdev=19154.58
     lat (usec): min=699, max=220931, avg=13516.53, stdev=19163.97
    clat percentiles (msec):
     |  1.00th=[    3],  5.00th=[    4], 10.00th=[    4], 20.00th=[    4],
     | 30.00th=[    4], 40.00th=[    5], 50.00th=[    6], 60.00th=[    8],
     | 70.00th=[   14], 80.00th=[   23], 90.00th=[   34], 95.00th=[   43],
     | 99.00th=[  112], 99.50th=[  151], 99.90th=[  176], 99.95th=[  186],
     | 99.99th=[  202]
    bw (KB  /s): min= 1096, max=18600, per=100.00%, avg=4732.28, stdev=4735.53
    lat (usec) : 500=0.01%, 750=0.01%, 1000=0.04%
    lat (msec) : 2=0.27%, 4=38.88%, 10=26.09%, 20=12.41%, 50=19.37%
    lat (msec) : 100=1.85%, 250=1.07%
  cpu          : usr=2.40%, sys=12.34%, ctx=251315, majf=0, minf=14
  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=355005/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=29405MB, aggrb=100367KB/s, minb=100367KB/s, maxb=100367KB/s, mint=300002msec, maxt=300002msec

Run status group 1 (all jobs):
  WRITE: io=33383MB, aggrb=113913KB/s, minb=113913KB/s, maxb=113913KB/s, mint=300086msec, maxt=300086msec

Run status group 2 (all jobs):
   READ: io=384368KB, aggrb=1281KB/s, minb=1281KB/s, maxb=1281KB/s, mint=300017msec, maxt=300017msec

Run status group 3 (all jobs):
  WRITE: io=1386.8MB, aggrb=4726KB/s, minb=4726KB/s, maxb=4726KB/s, mint=300457msec, maxt=300457msec