gcc -o pgms/arithoh -Wall -pedantic -O3 -ffast-math -march=native -mtune=native -I ./src -DTIME -Darithoh src/arith.c
gcc -o pgms/register -Wall -pedantic -O3 -ffast-math -march=native -mtune=native -I ./src -DTIME -Ddatum="register int" src/arith.c
gcc -o pgms/short -Wall -pedantic -O3 -ffast-math -march=native -mtune=native -I ./src -DTIME -Ddatum=short src/arith.c
gcc -o pgms/int -Wall -pedantic -O3 -ffast-math -march=native -mtune=native -I ./src -DTIME -Ddatum=int src/arith.c
gcc -o pgms/long -Wall -pedantic -O3 -ffast-math -march=native -mtune=native -I ./src -DTIME -Ddatum=long src/arith.c
gcc -o pgms/float -Wall -pedantic -O3 -ffast-math -march=native -mtune=native -I ./src -DTIME -Ddatum=float src/arith.c
gcc -o pgms/double -Wall -pedantic -O3 -ffast-math -march=native -mtune=native -I ./src -DTIME -Ddatum=double src/arith.c
gcc -o pgms/hanoi -Wall -pedantic -O3 -ffast-math -march=native -mtune=native -I ./src -DTIME src/hanoi.c
gcc -o pgms/syscall -Wall -pedantic -O3 -ffast-math -march=native -mtune=native -I ./src -DTIME src/syscall.c
gcc -o pgms/context1 -Wall -pedantic -O3 -ffast-math -march=native -mtune=native -I ./src -DTIME src/context1.c
gcc -o pgms/pipe -Wall -pedantic -O3 -ffast-math -march=native -mtune=native -I ./src -DTIME src/pipe.c
gcc -o pgms/spawn -Wall -pedantic -O3 -ffast-math -march=native -mtune=native -I ./src -DTIME src/spawn.c
gcc -o pgms/execl -Wall -pedantic -O3 -ffast-math -march=native -mtune=native -I ./src -DTIME src/execl.c
gcc -o pgms/dhry2 -Wall -pedantic -O3 -ffast-math -march=native -mtune=native -I ./src -DTIME -DHZ= ./src/dhry_1.c ./src/dhry_2.c
gcc -o pgms/dhry2reg -Wall -pedantic -O3 -ffast-math -march=native -mtune=native -I ./src -DTIME -DHZ= -DREG=register ./src/dhry_1.c ./src/dhry_2.c
gcc -o pgms/looper -Wall -pedantic -O3 -ffast-math -march=native -mtune=native -I ./src -DTIME src/looper.c
gcc -o pgms/fstime -Wall -pedantic -O3 -ffast-math -march=native -mtune=native -I ./src -DTIME src/fstime.c
gcc -o pgms/whetstone-double -Wall -pedantic -O3 -ffast-math -march=native -mtune=native -I ./src -DTIME -DDP -DUNIX -DUNIXBENCH src/whets.c -lm
make all
make[1]: Entering directory "/root/serverscope-72XFUM/byte-unixbench/UnixBench"
make distr
make[2]: Entering directory "/root/serverscope-72XFUM/byte-unixbench/UnixBench"
Checking distribution of files
./pgms exists
./src exists
./testdir exists
make[2]: Leaving directory "/root/serverscope-72XFUM/byte-unixbench/UnixBench"
make programs
make[2]: Entering directory "/root/serverscope-72XFUM/byte-unixbench/UnixBench"
make[2]: Nothing to be done for "programs".
make[2]: Leaving directory "/root/serverscope-72XFUM/byte-unixbench/UnixBench"
make[1]: Leaving directory "/root/serverscope-72XFUM/byte-unixbench/UnixBench"
sh: 1: 3dinfo: not found
# # # # # # # ##### ###### # # #### # #
# # ## # # # # # # # ## # # # # #
# # # # # # ## ##### ##### # # # # ######
# # # # # # ## # # # # # # # # #
# # # ## # # # # # # # ## # # # #
#### # # # # # ##### ###### # # #### # #
Version 5.1.3 Based on the Byte Magazine Unix Benchmark
Multi-CPU version Version 5 revisions by Ian Smith,
Sunnyvale, CA, USA
January 13, 2011 johantheghost at yahoo period com
1 x Dhrystone 2 using register variables 1 2 3 4 5 6 7 8 9 10
1 x Double-Precision Whetstone 1 2 3 4 5 6 7 8 9 10
1 x Execl Throughput 1 2 3
1 x File Copy 1024 bufsize 2000 maxblocks 1 2 3
1 x File Copy 256 bufsize 500 maxblocks 1 2 3
1 x File Copy 4096 bufsize 8000 maxblocks 1 2 3
1 x Pipe Throughput 1 2 3 4 5 6 7 8 9 10
1 x Pipe-based Context Switching 1 2 3 4 5 6 7 8 9 10
1 x Process Creation 1 2 3
1 x System Call Overhead 1 2 3 4 5 6 7 8 9 10
1 x Shell Scripts (1 concurrent) 1 2 3
1 x Shell Scripts (8 concurrent) 1 2 3
2 x Dhrystone 2 using register variables 1 2 3 4 5 6 7 8 9 10
2 x Double-Precision Whetstone 1 2 3 4 5 6 7 8 9 10
2 x Execl Throughput 1 2 3
2 x File Copy 1024 bufsize 2000 maxblocks 1 2 3
2 x File Copy 256 bufsize 500 maxblocks 1 2 3
2 x File Copy 4096 bufsize 8000 maxblocks 1 2 3
2 x Pipe Throughput 1 2 3 4 5 6 7 8 9 10
2 x Pipe-based Context Switching 1 2 3 4 5 6 7 8 9 10
2 x Process Creation 1 2 3
2 x System Call Overhead 1 2 3 4 5 6 7 8 9 10
2 x Shell Scripts (1 concurrent) 1 2 3
2 x Shell Scripts (8 concurrent) 1 2 3
========================================================================
BYTE UNIX Benchmarks (Version 5.1.3)
System: restopass-dev: GNU/Linux
OS: GNU/Linux -- 4.8.3-x86_64-linode76 -- #1 SMP Thu Oct 20 19:05:39 EDT 2016
Machine: x86_64 (unknown)
Language: en_US.utf8 (charmap="UTF-8", collate="UTF-8")
CPU 0: Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz (5001.3 bogomips)
x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET
CPU 1: Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz (5001.3 bogomips)
x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET
20:26:25 up 386 days, 3:41, 2 users, load average: 7.53, 4.55, 1.92; runlevel 2016-10-21
------------------------------------------------------------------------
Benchmark Run: Sat Nov 11 2017 20:26:25 - 20:54:34
2 CPUs in system; running 1 parallel copy of tests
Dhrystone 2 using register variables 28324998.4 lps (10.0 s, 7 samples)
Double-Precision Whetstone 3527.8 MWIPS (10.0 s, 7 samples)
Execl Throughput 3710.9 lps (29.8 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 893313.9 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 277251.1 KBps (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 1520318.3 KBps (30.0 s, 2 samples)
Pipe Throughput 2168994.2 lps (10.0 s, 7 samples)
Pipe-based Context Switching 54369.9 lps (10.0 s, 7 samples)
Process Creation 5751.6 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 7438.3 lpm (60.0 s, 2 samples)
Shell Scripts (8 concurrent) 1562.4 lpm (60.0 s, 2 samples)
System Call Overhead 3142355.2 lps (10.0 s, 7 samples)
System Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 28324998.4 2427.2
Double-Precision Whetstone 55.0 3527.8 641.4
Execl Throughput 43.0 3710.9 863.0
File Copy 1024 bufsize 2000 maxblocks 3960.0 893313.9 2255.8
File Copy 256 bufsize 500 maxblocks 1655.0 277251.1 1675.2
File Copy 4096 bufsize 8000 maxblocks 5800.0 1520318.3 2621.2
Pipe Throughput 12440.0 2168994.2 1743.6
Pipe-based Context Switching 4000.0 54369.9 135.9
Process Creation 126.0 5751.6 456.5
Shell Scripts (1 concurrent) 42.4 7438.3 1754.3
Shell Scripts (8 concurrent) 6.0 1562.4 2604.0
System Call Overhead 15000.0 3142355.2 2094.9
========
System Benchmarks Index Score 1244.3
------------------------------------------------------------------------
Benchmark Run: Sat Nov 11 2017 20:54:34 - 21:22:45
2 CPUs in system; running 2 parallel copies of tests
Dhrystone 2 using register variables 56709505.7 lps (10.0 s, 7 samples)
Double-Precision Whetstone 7181.7 MWIPS (9.9 s, 7 samples)
Execl Throughput 6902.8 lps (29.6 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 724375.5 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 207969.2 KBps (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 1937427.8 KBps (30.0 s, 2 samples)
Pipe Throughput 4362205.4 lps (10.0 s, 7 samples)
Pipe-based Context Switching 708490.4 lps (10.0 s, 7 samples)
Process Creation 12281.3 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 11697.3 lpm (60.0 s, 2 samples)
Shell Scripts (8 concurrent) 1530.4 lpm (60.1 s, 2 samples)
System Call Overhead 3662100.7 lps (10.0 s, 7 samples)
System Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 56709505.7 4859.4
Double-Precision Whetstone 55.0 7181.7 1305.8
Execl Throughput 43.0 6902.8 1605.3
File Copy 1024 bufsize 2000 maxblocks 3960.0 724375.5 1829.2
File Copy 256 bufsize 500 maxblocks 1655.0 207969.2 1256.6
File Copy 4096 bufsize 8000 maxblocks 5800.0 1937427.8 3340.4
Pipe Throughput 12440.0 4362205.4 3506.6
Pipe-based Context Switching 4000.0 708490.4 1771.2
Process Creation 126.0 12281.3 974.7
Shell Scripts (1 concurrent) 42.4 11697.3 2758.8
Shell Scripts (8 concurrent) 6.0 1530.4 2550.7
System Call Overhead 15000.0 3662100.7 2441.4
========
System Benchmarks Index Score 2117.7
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) copied, 4.73255 s, 454 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) copied, 4.41587 s, 486 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=3271: Sat Nov 11 20:23:20 2017
read : io=134332MB, bw=2238.9MB/s, iops=573129, runt= 60002msec
clat (usec): min=0, max=47415, avg=10.09, stdev=245.43
lat (usec): min=0, max=47416, avg=10.67, stdev=255.32
clat percentiles (usec):
| 1.00th=[ 1], 5.00th=[ 1], 10.00th=[ 1], 20.00th=[ 1],
| 30.00th=[ 1], 40.00th=[ 2], 50.00th=[ 2], 60.00th=[ 2],
| 70.00th=[ 2], 80.00th=[ 2], 90.00th=[ 2], 95.00th=[ 3],
| 99.00th=[ 167], 99.50th=[ 227], 99.90th=[ 482], 99.95th=[ 1560],
| 99.99th=[10304]
bw (KB /s): min=13856, max=413972, per=12.47%, avg=285791.83, stdev=154803.28
lat (usec) : 2=39.58%, 4=58.24%, 10=0.47%, 20=0.08%, 50=0.02%
lat (usec) : 100=0.06%, 250=1.12%, 500=0.32%, 750=0.04%, 1000=0.01%
lat (msec) : 2=0.01%, 4=0.01%, 10=0.01%, 20=0.04%, 50=0.01%
cpu : usr=5.48%, sys=17.43%, ctx=566172, majf=0, minf=81
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=34388941/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=134332MB, aggrb=2238.9MB/s, minb=2238.9MB/s, maxb=2238.9MB/s, mint=60002msec, maxt=60002msec
Disk stats (read/write):
sda: ios=524288/105, merge=0/526, ticks=64857/1167, in_queue=65880, util=23.65%
./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=3281: Sat Nov 11 20:24:21 2017
read : io=8865.7MB, bw=151304KB/s, iops=37825, runt= 60001msec
clat (usec): min=35, max=101539, avg=204.38, stdev=740.51
lat (usec): min=35, max=101539, avg=204.98, stdev=740.58
clat percentiles (usec):
| 1.00th=[ 76], 5.00th=[ 98], 10.00th=[ 110], 20.00th=[ 129],
| 30.00th=[ 143], 40.00th=[ 157], 50.00th=[ 171], 60.00th=[ 185],
| 70.00th=[ 207], 80.00th=[ 245], 90.00th=[ 318], 95.00th=[ 382],
| 99.00th=[ 580], 99.50th=[ 716], 99.90th=[ 1400], 99.95th=[ 2064],
| 99.99th=[ 7904]
bw (KB /s): min= 7552, max=29160, per=12.51%, avg=18932.17, stdev=2909.42
lat (usec) : 50=0.04%, 100=5.52%, 250=75.32%, 500=17.29%, 750=1.40%
lat (usec) : 1000=0.22%
lat (msec) : 2=0.15%, 4=0.03%, 10=0.01%, 20=0.01%, 50=0.01%
lat (msec) : 100=0.01%, 250=0.01%
cpu : usr=2.48%, sys=12.86%, ctx=2321718, majf=0, minf=76
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=2269595/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=8865.7MB, aggrb=151303KB/s, minb=151303KB/s, maxb=151303KB/s, mint=60001msec, maxt=60001msec
Disk stats (read/write):
sda: ios=2267553/28, merge=0/18, ticks=277320/12877, in_queue=289424, util=94.32%
./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=3304: Sat Nov 11 20:26:22 2017
write: io=68852MB, bw=1147.6MB/s, iops=293758, runt= 60002msec
clat (usec): min=1, max=58807, avg=25.44, stdev=591.00
lat (usec): min=1, max=58809, avg=25.70, stdev=593.53
clat percentiles (usec):
| 1.00th=[ 2], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 4],
| 30.00th=[ 4], 40.00th=[ 5], 50.00th=[ 5], 60.00th=[ 5],
| 70.00th=[ 6], 80.00th=[ 6], 90.00th=[ 6], 95.00th=[ 7],
| 99.00th=[ 11], 99.50th=[ 17], 99.90th=[10048], 99.95th=[16768],
| 99.99th=[23424]
bw (KB /s): min=50337, max=237900, per=12.51%, avg=147035.08, stdev=24169.44
lat (usec) : 2=0.02%, 4=11.63%, 10=87.13%, 20=0.79%, 50=0.23%
lat (usec) : 100=0.03%, 250=0.01%, 500=0.01%, 750=0.01%, 1000=0.01%
lat (msec) : 2=0.01%, 4=0.02%, 10=0.03%, 20=0.07%, 50=0.03%
lat (msec) : 100=0.01%
cpu : usr=2.94%, sys=19.96%, ctx=83252, majf=0, minf=92
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=17626109/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=68852MB, aggrb=1147.6MB/s, minb=1147.6MB/s, maxb=1147.6MB/s, mint=60002msec, maxt=60002msec
Disk stats (read/write):
sda: ios=0/107070, merge=0/76, ticks=0/159100, in_queue=158827, util=12.68%
./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=3291: Sat Nov 11 20:25:21 2017
write: io=1609.3MB, bw=27463KB/s, iops=6865, runt= 60002msec
clat (usec): min=58, max=123407, avg=1159.78, stdev=3687.89
lat (usec): min=59, max=123409, avg=1160.33, stdev=3687.93
clat percentiles (usec):
| 1.00th=[ 72], 5.00th=[ 81], 10.00th=[ 87], 20.00th=[ 98],
| 30.00th=[ 107], 40.00th=[ 116], 50.00th=[ 126], 60.00th=[ 139],
| 70.00th=[ 159], 80.00th=[ 274], 90.00th=[ 3824], 95.00th=[ 5920],
| 99.00th=[14656], 99.50th=[21376], 99.90th=[49408], 99.95th=[62208],
| 99.99th=[89600]
bw (KB /s): min= 225, max= 8992, per=12.52%, avg=3439.06, stdev=1578.62
lat (usec) : 100=21.54%, 250=57.89%, 500=2.42%, 750=0.40%, 1000=0.26%
lat (msec) : 2=1.53%, 4=6.53%, 10=7.57%, 20=1.32%, 50=0.45%
lat (msec) : 100=0.09%, 250=0.01%
cpu : usr=0.66%, sys=2.08%, ctx=851538, majf=0, minf=74
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=411959/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=1609.3MB, aggrb=27463KB/s, minb=27463KB/s, maxb=27463KB/s, mint=60002msec, maxt=60002msec
Disk stats (read/write):
sda: ios=11/410659, merge=0/186, ticks=1060/54810, in_queue=55707, util=75.38%
Downloaded 104857600 bytes in 0.338 sec Downloaded 104857600 bytes in 0.387 sec Downloaded 104857600 bytes in 0.335 sec Downloaded 104857600 bytes in 0.325 sec Downloaded 104857600 bytes in 0.320 sec Finished! Average download speed is 2346.04 Mbit/s
Retrieving speedtest.net configuration... Retrieving speedtest.net server list... Testing from Linode ... Selecting 15 servers that are not too close: 1. Proxar IT Consulting (Sevenoaks) [32.68 km]: 711.08 ms 2. Interoute VDC (Slough) [34.39 km]: 17.034 ms 3. O2 UK (Slough) [34.39 km]: 10.174 ms 4. Ai Networks Ltd (Welwyn Garden City) [38.00 km]: 6.041 ms 5. International School of London (Woking) [39.12 km]: 26.612 ms 6. Virgin Media (Basildon) [40.82 km]: 6.215 ms 7. XILO (Maidenhead) [43.43 km]: 5.694 ms 8. Iomart (Maidenhead) [43.43 km]: 6.022 ms 9. Virgin Media (Luton) [46.37 km]: 6.184 ms 10. Custodian DataCentre (Maidstone) [50.88 km]: 4.526 ms 11. VooServers Ltd (Maidstone) [50.88 km]: 15.466 ms 12. CSD Network Services Ltd (Braintree) [60.01 km]: 26.332 ms 13. Uno (Milton Keynes) [74.40 km]: 3.675 ms 14. Cloud Space UK (Canterbury) [86.09 km]: 6.365 ms 15. Vodafone UK (Newbury) [86.17 km]: 4.539 ms Testing upload speeds 1. Proxar IT Consulting (Sevenoaks): ......................... 370.67 Mbit/s 2. Interoute VDC (Slough): ......................... 206.02 Mbit/s 3. O2 UK (Slough): ......................... 306.18 Mbit/s 4. Ai Networks Ltd (Welwyn Garden City): ......................... 242.17 Mbit/s 5. International School of London (Woking): ......................... 119.39 Mbit/s 6. Virgin Media (Basildon): ......................... 358.19 Mbit/s 7. XILO (Maidenhead): ......................... 250.92 Mbit/s 8. Iomart (Maidenhead): ......................... 241.39 Mbit/s 9. Virgin Media (Luton): ......................... 248.50 Mbit/s 10. Custodian DataCentre (Maidstone): ......................... 255.32 Mbit/s 11. VooServers Ltd (Maidstone): ......................... 189.16 Mbit/s 12. CSD Network Services Ltd (Braintree): ......................... 282.53 Mbit/s 13. Uno (Milton Keynes): ......................... 284.69 Mbit/s 14. Cloud Space UK (Canterbury): ......................... 241.20 Mbit/s 15. Vodafone UK (Newbury): ......................... 255.84 Mbit/s Average upload speed is 256.81 Mbit/s