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 src/pipe.c: In function xe2x80x98mainxe2x80x99: src/pipe.c:52:2: warning: ignoring return value of xe2x80x98pipexe2x80x99, declared with attribute warn_unused_result [-Wunused-result] pipe(pvec); ^~~~~~~~~~ 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 In file included from src/execl.c:34:0: src/big.c: In function xe2x80x98dummyxe2x80x99: src/big.c:109:5: warning: ignoring return value of xe2x80x98freopenxe2x80x99, declared with attribute warn_unused_result [-Wunused-result] freopen("masterlog.00", "a", stderr); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ src/big.c:197:6: warning: ignoring return value of xe2x80x98freopenxe2x80x99, declared with attribute warn_unused_result [-Wunused-result] freopen(logname, "w", stderr); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ src/big.c:221:3: warning: ignoring return value of xe2x80x98dupxe2x80x99, declared with attribute warn_unused_result [-Wunused-result] dup(pvec[0]); ^~~~~~~~~~~~ src/big.c:225:6: warning: ignoring return value of xe2x80x98freopenxe2x80x99, declared with attribute warn_unused_result [-Wunused-result] freopen(logname, "w", stderr); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ src/big.c:318:4: warning: ignoring return value of xe2x80x98writexe2x80x99, declared with attribute warn_unused_result [-Wunused-result] write(fcopy, cp->line, p - cp->line + 1); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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 "/etc/nginx/conf.d/serverscope-JXGlH3/byte-unixbench/UnixBench" make distr make[2]: Entering directory "/etc/nginx/conf.d/serverscope-JXGlH3/byte-unixbench/UnixBench" Checking distribution of files ./pgms exists ./src exists ./testdir exists make[2]: Leaving directory "/etc/nginx/conf.d/serverscope-JXGlH3/byte-unixbench/UnixBench" make programs make[2]: Entering directory "/etc/nginx/conf.d/serverscope-JXGlH3/byte-unixbench/UnixBench" make[2]: Nothing to be done for "programs". make[2]: Leaving directory "/etc/nginx/conf.d/serverscope-JXGlH3/byte-unixbench/UnixBench" make[1]: Leaving directory "/etc/nginx/conf.d/serverscope-JXGlH3/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 ======================================================================== BYTE UNIX Benchmarks (Version 5.1.3) System: kyanite-ord: GNU/Linux OS: GNU/Linux -- 4.10.0-19-generic -- #21-Ubuntu SMP Thu Apr 6 17:04:57 UTC 2017 Machine: x86_64 (x86_64) Language: en_US.utf8 (charmap="UTF-8", collate="UTF-8") CPU 0: Intel(R) Xeon(R) CPU L5630 @ 2.13GHz (4266.8 bogomips) x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET 14:24:21 up 2:26, 1 user, load average: 3.56, 4.51, 2.64; runlevel 2017-08-19 ------------------------------------------------------------------------ Benchmark Run: Sat Aug 19 2017 14:24:21 - 14:52:54 1 CPU in system; running 1 parallel copy of tests Dhrystone 2 using register variables 20016067.9 lps (10.0 s, 7 samples) Double-Precision Whetstone 2831.7 MWIPS (9.9 s, 7 samples) Execl Throughput 2998.2 lps (29.8 s, 2 samples) File Copy 1024 bufsize 2000 maxblocks 682806.9 KBps (30.0 s, 2 samples) File Copy 256 bufsize 500 maxblocks 193360.1 KBps (30.0 s, 2 samples) File Copy 4096 bufsize 8000 maxblocks 1325887.5 KBps (30.0 s, 2 samples) Pipe Throughput 1259376.7 lps (10.0 s, 7 samples) Pipe-based Context Switching 216149.5 lps (10.0 s, 7 samples) Process Creation 8625.0 lps (30.0 s, 2 samples) Shell Scripts (1 concurrent) 5804.4 lpm (60.0 s, 2 samples) Shell Scripts (8 concurrent) 764.9 lpm (60.0 s, 2 samples) System Call Overhead 2744518.7 lps (10.0 s, 7 samples) System Benchmarks Index Values BASELINE RESULT INDEX Dhrystone 2 using register variables 116700.0 20016067.9 1715.2 Double-Precision Whetstone 55.0 2831.7 514.9 Execl Throughput 43.0 2998.2 697.2 File Copy 1024 bufsize 2000 maxblocks 3960.0 682806.9 1724.3 File Copy 256 bufsize 500 maxblocks 1655.0 193360.1 1168.3 File Copy 4096 bufsize 8000 maxblocks 5800.0 1325887.5 2286.0 Pipe Throughput 12440.0 1259376.7 1012.4 Pipe-based Context Switching 4000.0 216149.5 540.4 Process Creation 126.0 8625.0 684.5 Shell Scripts (1 concurrent) 42.4 5804.4 1369.0 Shell Scripts (8 concurrent) 6.0 764.9 1274.9 System Call Overhead 15000.0 2744518.7 1829.7 ======== System Benchmarks Index Score 1107.1
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, 51.266 s, 41.9 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, 30.4479 s, 70.5 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=11189: Sat Aug 19 14:19:10 2017 read : io=5212.3MB, bw=88955KB/s, iops=22238, runt= 60001msec clat (usec): min=1, max=50534, avg=354.85, stdev=1901.24 lat (usec): min=1, max=50534, avg=355.33, stdev=1901.25 clat percentiles (usec): | 1.00th=[ 3], 5.00th=[ 96], 10.00th=[ 127], 20.00th=[ 157], | 30.00th=[ 181], 40.00th=[ 203], 50.00th=[ 223], 60.00th=[ 247], | 70.00th=[ 274], 80.00th=[ 314], 90.00th=[ 374], 95.00th=[ 426], | 99.00th=[ 604], 99.50th=[ 3504], 99.90th=[34560], 99.95th=[37632], | 99.99th=[42240] bw (KB /s): min= 7072, max=15296, per=12.50%, avg=11115.78, stdev=1199.36 lat (usec) : 2=0.01%, 4=2.70%, 10=0.74%, 20=0.24%, 50=0.05% lat (usec) : 100=1.66%, 250=55.43%, 500=37.30%, 750=1.02%, 1000=0.09% lat (msec) : 2=0.19%, 4=0.16%, 10=0.06%, 20=0.01%, 50=0.35% lat (msec) : 100=0.01% cpu : usr=1.81%, sys=6.42%, ctx=1288904, 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=1334347/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=5212.3MB, aggrb=88954KB/s, minb=88954KB/s, maxb=88954KB/s, mint=60001msec, maxt=60001msec Disk stats (read/write): dm-0: ios=1283702/32, merge=0/0, ticks=216768/2600, in_queue=219588, util=94.60%, aggrios=1284903/424, aggrmerge=32/1161, aggrticks=214620/19192, aggrin_queue=233352, aggrutil=94.23% vda: ios=1284903/424, merge=32/1161, ticks=214620/19192, in_queue=233352, util=94.23%
./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=11199: Sat Aug 19 14:20:11 2017 read : io=5488.4MB, bw=93665KB/s, iops=23416, runt= 60001msec clat (usec): min=28, max=52565, avg=336.21, stdev=2149.34 lat (usec): min=28, max=52565, avg=336.75, stdev=2149.35 clat percentiles (usec): | 1.00th=[ 81], 5.00th=[ 105], 10.00th=[ 121], 20.00th=[ 145], | 30.00th=[ 163], 40.00th=[ 179], 50.00th=[ 197], 60.00th=[ 217], | 70.00th=[ 241], 80.00th=[ 274], 90.00th=[ 326], 95.00th=[ 374], | 99.00th=[ 486], 99.50th=[ 612], 99.90th=[39680], 99.95th=[42752], | 99.99th=[47872] bw (KB /s): min= 9360, max=13912, per=12.51%, avg=11716.83, stdev=906.59 lat (usec) : 50=0.03%, 100=3.69%, 250=69.18%, 500=26.25%, 750=0.45% lat (usec) : 1000=0.05% lat (msec) : 2=0.02%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.33% lat (msec) : 100=0.01% cpu : usr=1.87%, sys=6.02%, ctx=1407991, majf=0, minf=73 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=1405004/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=5488.4MB, aggrb=93665KB/s, minb=93665KB/s, maxb=93665KB/s, mint=60001msec, maxt=60001msec Disk stats (read/write): dm-0: ios=1404469/14, merge=0/0, ticks=245796/672, in_queue=246724, util=97.29%, aggrios=1405015/11, aggrmerge=6/3, aggrticks=243864/496, aggrin_queue=243860, aggrutil=96.26% vda: ios=1405015/11, merge=6/3, ticks=243864/496, in_queue=243860, util=96.26%
./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=11219: Sat Aug 19 14:24:17 2017 write: io=239796KB, bw=1295.1KB/s, iops=323, runt=185039msec clat (usec): min=1, max=39830K, avg=6005.42, stdev=383083.39 lat (usec): min=2, max=39830K, avg=6006.44, stdev=383083.40 clat percentiles (usec): | 1.00th=[ 2], 5.00th=[ 2], 10.00th=[ 3], 20.00th=[ 3], | 30.00th=[ 4], 40.00th=[ 4], 50.00th=[ 4], 60.00th=[ 5], | 70.00th=[ 5], 80.00th=[ 5], 90.00th=[ 7], 95.00th=[ 9], | 99.00th=[ 33], 99.50th=[150528], 99.90th=[203776], 99.95th=[203776], | 99.99th=[16711680] bw (KB /s): min= 0, max=46956, per=100.00%, avg=1543.10, stdev=5320.32 lat (usec) : 2=0.01%, 4=26.00%, 10=70.25%, 20=2.29%, 50=0.58% lat (usec) : 100=0.06%, 250=0.01%, 500=0.01%, 750=0.01% lat (msec) : 2=0.01%, 4=0.02%, 10=0.10%, 20=0.10%, 50=0.02% lat (msec) : 100=0.01%, 250=0.52%, 1000=0.01%, 2000=0.01%, >=2000=0.02% cpu : usr=0.02%, sys=0.06%, ctx=26541, majf=0, minf=91 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=59949/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=239796KB, aggrb=1295KB/s, minb=1295KB/s, maxb=1295KB/s, mint=185039msec, maxt=185039msec Disk stats (read/write): dm-0: ios=1/28724, merge=0/0, ticks=0/440696, in_queue=440712, util=99.64%, aggrios=15/16315, aggrmerge=15/12538, aggrticks=0/259712, aggrin_queue=260272, aggrutil=99.61% vda: ios=15/16315, merge=15/12538, ticks=0/259712, in_queue=260272, util=99.61%
./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=11209: Sat Aug 19 14:21:11 2017 write: io=3820.0KB, bw=64899B/s, iops=15, runt= 60273msec clat (msec): min=2, max=29059, avg=503.84, stdev=2792.40 lat (msec): min=2, max=29059, avg=503.85, stdev=2792.40 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 8], 10.00th=[ 25], 20.00th=[ 32], | 30.00th=[ 40], 40.00th=[ 45], 50.00th=[ 52], 60.00th=[ 64], | 70.00th=[ 89], 80.00th=[ 103], 90.00th=[ 124], 95.00th=[ 143], | 99.00th=[16712], 99.50th=[16712], 99.90th=[16712], 99.95th=[16712], | 99.99th=[16712] bw (KB /s): min= 0, max= 114, per=71.02%, avg=44.74, stdev=28.77 lat (msec) : 4=1.26%, 10=7.23%, 20=0.52%, 50=39.58%, 100=29.32% lat (msec) : 250=18.64%, 500=0.42%, 750=0.10%, 2000=0.10%, >=2000=2.83% cpu : usr=0.00%, sys=0.02%, ctx=1953, majf=0, minf=82 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=955/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=3820KB, aggrb=63KB/s, minb=63KB/s, maxb=63KB/s, mint=60273msec, maxt=60273msec Disk stats (read/write): dm-0: ios=0/1126, merge=0/0, ticks=0/79552, in_queue=79564, util=99.74%, aggrios=441/999, aggrmerge=457/129, aggrticks=24/67872, aggrin_queue=67892, aggrutil=99.69% vda: ios=441/999, merge=457/129, ticks=24/67872, in_queue=67892, util=99.69%
Downloaded 104857600 bytes in 1.858025 sec Downloaded 104857600 bytes in 1.888850 sec Downloaded 104857600 bytes in 1.853415 sec Downloaded 104857600 bytes in 1.854798 sec Downloaded 104857600 bytes in 1.850152 sec Finished! Average download speed is 429.87 Mbit/s
Retrieving speedtest.net configuration... Retrieving speedtest.net server list... Testing from tzulo ... Selecting 15 servers that are not too close: 1. T-Mobile (Elgin, IL) [30.73 km]: 11.275 ms 2. Starpoint Digital inc (Schaumburg, IL) [36.11 km]: 7.128 ms 3. Lola Wireless (Stone Park, IL) [39.59 km]: 5.331 ms 4. GigeNET (Arlington Heights, IL) [46.59 km]: 5.291 ms 5. AT&T (Cicero, IL) [47.48 km]: 5.008 ms 6. Urban Communications, Inc. (Oak Forest, IL) [50.97 km]: 6.68 ms 7. Comcast (Chicago, IL) [53.35 km]: 4.448 ms 8. Speedtest.net (Chicago, IL) [53.35 km]: 4.194 ms 9. The Fusion Network (Chicago, IL) [53.35 km]: 4.526 ms 10. tzulo, inc (Chicago, IL) [53.35 km]: 3.926 ms 11. SilverIP Communications (Chicago, IL) [53.35 km]: 4.958 ms 12. ServerCentral (Chicago, IL) [53.35 km]: 7.11 ms 13. Comcast (Chicago, IL) [53.35 km]: 2.601 ms 14. CenturyLink, Inc (Chicago, IL) [53.35 km]: 29.611 ms 15. Cable One, Inc. (Chicago, IL) [53.35 km]: 16.524 ms Testing upload speeds 1. T-Mobile (Elgin, IL): ......................... 121.96 Mbit/s 2. Starpoint Digital inc (Schaumburg, IL): ......................... 42.00 Mbit/s 3. Lola Wireless (Stone Park, IL): ......................... 105.66 Mbit/s 4. GigeNET (Arlington Heights, IL): ......................... 102.40 Mbit/s 5. AT&T (Cicero, IL): ......................... 107.45 Mbit/s 6. Urban Communications, Inc. (Oak Forest, IL): ......................... 101.32 Mbit/s 7. Comcast (Chicago, IL): ......................... 90.76 Mbit/s 8. Speedtest.net (Chicago, IL): ......................... 81.46 Mbit/s 9. The Fusion Network (Chicago, IL): ......................... 85.18 Mbit/s 10. tzulo, inc (Chicago, IL): ......................... 44.49 Mbit/s 11. SilverIP Communications (Chicago, IL): ......................... 107.76 Mbit/s 12. ServerCentral (Chicago, IL): ......................... 115.40 Mbit/s 13. Comcast (Chicago, IL): ......................... 101.44 Mbit/s 14. CenturyLink, Inc (Chicago, IL): ......................... 86.34 Mbit/s 15. Cable One, Inc. (Chicago, IL): ......................... 96.48 Mbit/s Average upload speed is 92.67 Mbit/s