dd if=/dev/zero of=benchmark bs=64K count=32K conv=fdatasync 32768+0 records in 32768+0 records out 2147483648 bytes (2.1 GB, 2.0 GiB) copied, 11.258 s, 191 MB/s dd if=/dev/zero of=benchmark bs=1M count=2048 conv=fdatasync 2048+0 records in 2048+0 records out 2147483648 bytes (2.1 GB, 2.0 GiB) copied, 11.6334 s, 185 MB/s
./fio --time_based --name=benchmark --size=256M --runtime=60 --randrepeat=1 --iodepth=32 --invalidate=1 --verify=0 --verify_fatal=0 --numjobs=8 --rw=randread --blocksize=4k --group_reporting
benchmark: (g=0): rw=randread, bs=4K-4K/4K-4K/4K-4K, ioengine=sync, iodepth=32
...
fio-2.8
Starting 8 processes
benchmark: Laying out IO file(s) (1 file(s) / 256MB)
benchmark: Laying out IO file(s) (1 file(s) / 256MB)
benchmark: Laying out IO file(s) (1 file(s) / 256MB)
benchmark: Laying out IO file(s) (1 file(s) / 256MB)
benchmark: Laying out IO file(s) (1 file(s) / 256MB)
benchmark: Laying out IO file(s) (1 file(s) / 256MB)
benchmark: Laying out IO file(s) (1 file(s) / 256MB)
benchmark: Laying out IO file(s) (1 file(s) / 256MB)
benchmark: (groupid=0, jobs=8): err= 0: pid=24219: Sat Jul 14 03:11:22 2018
  read : io=98508KB, bw=1640.6KB/s, iops=410, runt= 60046msec
    clat (usec): min=242, max=272140, avg=19476.83, stdev=22123.40
     lat (usec): min=244, max=272141, avg=19478.34, stdev=22123.40
    clat percentiles (usec):
     |  1.00th=[ 1272],  5.00th=[ 2064], 10.00th=[ 3216], 20.00th=[ 5024],
     | 30.00th=[ 6752], 40.00th=[ 8512], 50.00th=[11328], 60.00th=[15552],
     | 70.00th=[21120], 80.00th=[29568], 90.00th=[45824], 95.00th=[64256],
     | 99.00th=[107008], 99.50th=[128512], 99.90th=[179200], 99.95th=[199680],
     | 99.99th=[232448]
    bw (KB  /s): min=   37, max=  378, per=12.53%, avg=205.53, stdev=48.24
    lat (usec) : 250=0.01%, 500=0.35%, 750=0.01%, 1000=0.06%
    lat (msec) : 2=4.34%, 4=9.74%, 10=31.06%, 20=23.18%, 50=22.70%
    lat (msec) : 100=7.31%, 250=1.25%, 500=0.01%
  cpu          : usr=0.13%, sys=0.42%, ctx=24682, majf=0, minf=149
  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=24627/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=32
Run status group 0 (all jobs):
   READ: io=98508KB, aggrb=1640KB/s, minb=1640KB/s, maxb=1640KB/s, mint=60046msec, maxt=60046msec
Disk stats (read/write):
  sda: ios=24544/9, merge=0/6, ticks=475010/35920, in_queue=511240, util=99.81%
./fio --time_based --name=benchmark --size=256M --runtime=60 --randrepeat=1 --iodepth=32 --direct=1 --invalidate=1 --verify=0 --verify_fatal=0 --numjobs=8 --rw=randread --blocksize=4k --group_reporting
benchmark: (g=0): rw=randread, bs=4K-4K/4K-4K/4K-4K, ioengine=sync, iodepth=32
...
fio-2.8
Starting 8 processes
benchmark: (groupid=0, jobs=8): err= 0: pid=24229: Sat Jul 14 03:12:23 2018
  read : io=101700KB, bw=1693.1KB/s, iops=423, runt= 60038msec
    clat (usec): min=730, max=265678, avg=18860.65, stdev=21985.97
     lat (usec): min=732, max=265680, avg=18862.21, stdev=21985.98
    clat percentiles (usec):
     |  1.00th=[ 1288],  5.00th=[ 1864], 10.00th=[ 2736], 20.00th=[ 4512],
     | 30.00th=[ 6304], 40.00th=[ 8032], 50.00th=[10816], 60.00th=[14912],
     | 70.00th=[20352], 80.00th=[28544], 90.00th=[45312], 95.00th=[63232],
     | 99.00th=[107008], 99.50th=[125440], 99.90th=[173056], 99.95th=[193536],
     | 99.99th=[254976]
    bw (KB  /s): min=   61, max=  382, per=12.53%, avg=212.09, stdev=50.01
    lat (usec) : 750=0.01%, 1000=0.10%
    lat (msec) : 2=5.95%, 4=11.26%, 10=30.71%, 20=21.68%, 50=22.01%
    lat (msec) : 100=7.05%, 250=1.23%, 500=0.01%
  cpu          : usr=0.14%, sys=0.40%, ctx=25455, majf=0, minf=148
  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=25425/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=32
Run status group 0 (all jobs):
   READ: io=101700KB, aggrb=1693KB/s, minb=1693KB/s, maxb=1693KB/s, mint=60038msec, maxt=60038msec
Disk stats (read/write):
  sda: ios=25424/0, merge=0/0, ticks=477460/0, in_queue=477460, util=99.81%
./fio --time_based --name=benchmark --size=256M --runtime=60 --filename=benchmark --randrepeat=1 --iodepth=32 --invalidate=1 --verify=0 --verify_fatal=0 --numjobs=8 --rw=randwrite --blocksize=4k --group_reporting
benchmark: (g=0): rw=randwrite, bs=4K-4K/4K-4K/4K-4K, ioengine=sync, iodepth=32
...
fio-2.8
Starting 8 processes
benchmark: (groupid=0, jobs=8): err= 0: pid=24249: Sat Jul 14 03:14:24 2018
  write: io=2532.0MB, bw=43209KB/s, iops=10802, runt= 60005msec
    clat (usec): min=10, max=759153, avg=698.84, stdev=10718.32
     lat (usec): min=11, max=759156, avg=701.09, stdev=10723.55
    clat percentiles (usec):
     |  1.00th=[   11],  5.00th=[   12], 10.00th=[   12], 20.00th=[   13],
     | 30.00th=[   13], 40.00th=[   13], 50.00th=[   14], 60.00th=[   14],
     | 70.00th=[   16], 80.00th=[   19], 90.00th=[   23], 95.00th=[   29],
     | 99.00th=[  133], 99.50th=[41728], 99.90th=[171008], 99.95th=[216064],
     | 99.99th=[382976]
    bw (KB  /s): min=    0, max=39719, per=13.19%, avg=5697.33, stdev=3415.36
    lat (usec) : 20=81.89%, 50=15.59%, 100=1.22%, 250=0.44%, 500=0.02%
    lat (usec) : 750=0.01%, 1000=0.01%
    lat (msec) : 2=0.02%, 4=0.04%, 10=0.08%, 20=0.05%, 50=0.20%
    lat (msec) : 100=0.18%, 250=0.23%, 500=0.02%, 750=0.01%, 1000=0.01%
  cpu          : usr=1.17%, sys=2.87%, ctx=20748, majf=0, minf=159
  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=648192/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=32
Run status group 0 (all jobs):
  WRITE: io=2532.0MB, aggrb=43209KB/s, minb=43209KB/s, maxb=43209KB/s, mint=60005msec, maxt=60005msec
Disk stats (read/write):
  sda: ios=0/76686, merge=0/14769, ticks=0/6746600, in_queue=6758000, util=99.40%
./fio --time_based --name=benchmark --size=256M --runtime=60 --filename=benchmark --randrepeat=1 --iodepth=32 --direct=1 --invalidate=1 --verify=0 --verify_fatal=0 --numjobs=8 --rw=randwrite --blocksize=4k --group_reporting
benchmark: (g=0): rw=randwrite, bs=4K-4K/4K-4K/4K-4K, ioengine=sync, iodepth=32
...
fio-2.8
Starting 8 processes
benchmark: Laying out IO file(s) (1 file(s) / 256MB)
benchmark: (groupid=0, jobs=8): err= 0: pid=24239: Sat Jul 14 03:13:24 2018
  write: io=121692KB, bw=2027.5KB/s, iops=506, runt= 60022msec
    clat (usec): min=257, max=2596.9K, avg=15758.61, stdev=111905.06
     lat (usec): min=259, max=2596.9K, avg=15761.07, stdev=111905.10
    clat percentiles (usec):
     |  1.00th=[  322],  5.00th=[  418], 10.00th=[  474], 20.00th=[  540],
     | 30.00th=[  676], 40.00th=[ 1320], 50.00th=[ 5728], 60.00th=[ 7520],
     | 70.00th=[ 8768], 80.00th=[14272], 90.00th=[23680], 95.00th=[41728],
     | 99.00th=[98816], 99.50th=[156672], 99.90th=[2039808], 99.95th=[2146304],
     | 99.99th=[2441216]
    bw (KB  /s): min=    2, max= 1448, per=17.75%, avg=359.86, stdev=251.87
    lat (usec) : 500=14.75%, 750=15.94%, 1000=3.99%
    lat (msec) : 2=13.33%, 4=1.33%, 10=26.31%, 20=12.02%, 50=8.33%
    lat (msec) : 100=3.01%, 250=0.66%, 500=0.04%, 2000=0.14%, >=2000=0.15%
  cpu          : usr=0.15%, sys=0.87%, ctx=68350, majf=0, minf=148
  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=30423/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=32
Run status group 0 (all jobs):
  WRITE: io=121692KB, aggrb=2027KB/s, minb=2027KB/s, maxb=2027KB/s, mint=60022msec, maxt=60022msec
Disk stats (read/write):
  sda: ios=0/30345, merge=0/1356, ticks=0/101480, in_queue=101400, util=94.29%
Downloaded 104857600 bytes in 11.302446 sec Downloaded 104857600 bytes in 10.043322 sec Downloaded 104857600 bytes in 15.971405 sec Downloaded 104857600 bytes in 9.435473 sec Downloaded 104857600 bytes in 11.120019 sec Finished! Average download speed is 69.12 Mbit/s
Retrieving speedtest.net configuration... Retrieving speedtest.net server list... Testing from OVH SAS ... Selecting 15 servers that are not too close: 1. Wibox (Val de Reuil) [93.81 km]: 11.152 ms 2. Ikoula (Reims) [131.50 km]: 19.306 ms 3. Hexanet (Reims) [131.50 km]: 12.748 ms 4. LaFibre.info (Douai) [176.53 km]: 13.701 ms 5. Eurafibre (Lille) [203.58 km]: 9.598 ms 6. ePlay TV (Roubaix) [213.32 km]: 6.032 ms 7. CloudConnX (Eastbourne) [258.84 km]: 7.225 ms 8. Universite Catholique de Louvain (Louvain-La-Neuve) [259.09 km]: 8.732 ms 9. RIV54 (Saulnes) [264.06 km]: 18.551 ms 10. Proximus (Brussels) [264.26 km]: 9.809 ms 11. Combell (Brussels) [264.26 km]: 10.827 ms 12. Riffle Media BVBA (Brussels) [264.26 km]: 8.238 ms 13. Orange Belgium (Brussels) [264.26 km]: 10.447 ms 14. Old-Linux.com (Dijon) [265.95 km]: 10.709 ms 15. Proximus (Schaarbeek) [266.93 km]: 7.596 ms Testing upload speeds 1. Wibox (Val de Reuil): ......................... 37.99 Mbit/s 2. Ikoula (Reims): ......................... 32.24 Mbit/s 3. Hexanet (Reims): ......................... 26.84 Mbit/s 4. LaFibre.info (Douai): ......................... 30.20 Mbit/s 5. Eurafibre (Lille): ......................... 51.81 Mbit/s 6. ePlay TV (Roubaix): ......................... 125.52 Mbit/s 7. CloudConnX (Eastbourne): ......................... 25.20 Mbit/s 8. Universite Catholique de Louvain (Louvain-La-Neuve):......................... 35.89 Mbit/s 9. RIV54 (Saulnes): ......................... 39.17 Mbit/s 10. Proximus (Brussels): ......................... 35.07 Mbit/s 11. Combell (Brussels): ......................... 33.49 Mbit/s 12. Riffle Media BVBA (Brussels): ......................... 41.59 Mbit/s 13. Orange Belgium (Brussels): ......................... 29.54 Mbit/s 14. Old-Linux.com (Dijon): ......................... 33.33 Mbit/s 15. Proximus (Schaarbeek): ......................... 34.22 Mbit/s Average upload speed is 40.81 Mbit/s