Hi
I have got new VPS XEN Full virtualization server / 100Mb port What I am seeing for the third day is low bandwidth rates (lower 5MB/s) and 15ms latency to DE-CIX. Also see large StDevs on every hop -- the network is very unstable, (it is Accelerated based, so I guess uplink is not a problem). Do you think the problem is with the host machine?
============================================================================================================== Sat Aug 8 01:59:01 GMT-3 2015 + mtr -rwc10 decix.de Start: Sat Aug 8 01:59:01 2015 HOST: XXXXXXXXXXXXXXX.de Loss% Snt Last Avg Best Wrst StDev 1.|-- XX.XX.XX.XX 0.0% 10 5.8 3.4 0.2 6.7 2.7 2.|-- 82.211.0.1 0.0% 10 12.1 10.5 0.3 48.8 14.5 3.|-- fra3.xe-0-0-0.accelerated.de 0.0% 10 11.7 7.9 0.4 16.9 7.0 4.|-- sgw2-te-0-0-2-3-ixp.fra.de-cix.net 0.0% 10 13.8 8.4 1.3 21.5 6.8 5.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0 + mtr -rwc10 4.2.2.2 Start: Sat Aug 8 01:59:12 2015 HOST: XXXXXXXXXXXXXXX.de Loss% Snt Last Avg Best Wrst StDev 1.|-- XX.XX.XX.XX 0.0% 10 6.7 5.8 2.7 8.4 2.1 2.|-- 82.211.0.1 0.0% 10 8.0 17.2 8.0 58.1 14.6 3.|-- xe-4-2-1-311.edge4.Frankfurt1.Level3.net 0.0% 10 13.4 12.4 8.3 16.1 2.5 4.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0 5.|-- b.resolvers.Level3.net 0.0% 10 13.8 14.0 9.9 21.3 3.3 + grep SUM + iperf -c ping.online.net -i 1 -P 10 -f M -t 5 [SUM] 0.0- 1.0 sec 7.50 MBytes 7.50 MBytes/sec [SUM] 1.0- 2.0 sec 5.00 MBytes 5.00 MBytes/sec [SUM] 2.0- 3.0 sec 4.50 MBytes 4.50 MBytes/sec [SUM] 3.0- 4.0 sec 4.62 MBytes 4.62 MBytes/sec [SUM] 4.0- 5.0 sec 4.62 MBytes 4.62 MBytes/sec [SUM] 0.0- 5.6 sec 27.5 MBytes 4.88 MBytes/sec + dd if=/dev/zero of=/root/test bs=64k count=16k conv=fdatasync 16384+0 records in 16384+0 records out 1073741824 bytes (1.1 GB) copied, 10.5804 s, 101 MB/s ============================================================================================================== Sat Aug 8 02:59:01 GMT-3 2015 + mtr -rwc10 decix.de Start: Sat Aug 8 02:59:01 2015 HOST: XXXXXXXXXXXXXXX.de Loss% Snt Last Avg Best Wrst StDev 1.|-- XX.XX.XX.XX 0.0% 10 0.2 4.6 0.2 7.6 2.3 2.|-- 82.211.0.1 0.0% 10 0.8 11.2 0.8 21.8 5.1 3.|-- fra3.xe-0-0-0.accelerated.de 0.0% 10 0.4 12.6 0.4 17.4 5.1 4.|-- sgw2-te-0-0-2-3-ixp.fra.de-cix.net 0.0% 10 1.3 13.1 1.3 16.8 4.4 5.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0 + mtr -rwc10 4.2.2.2 Start: Sat Aug 8 02:59:11 2015 HOST: XXXXXXXXXXXXXXX.de Loss% Snt Last Avg Best Wrst StDev 1.|-- XX.XX.XX.XX 0.0% 10 7.1 3.9 0.1 9.0 3.9 2.|-- 82.211.0.1 0.0% 10 16.3 8.7 0.3 16.3 5.7 3.|-- xe-4-2-1-311.edge4.Frankfurt1.Level3.net 0.0% 10 10.6 7.6 0.6 15.5 5.6 4.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0 5.|-- b.resolvers.Level3.net 0.0% 10 12.7 8.2 0.7 18.4 6.9 + grep SUM + iperf -c ping.online.net -i 1 -P 10 -f M -t 5 [SUM] 0.0- 1.0 sec 7.50 MBytes 7.50 MBytes/sec [SUM] 1.0- 2.0 sec 5.00 MBytes 5.00 MBytes/sec [SUM] 2.0- 3.0 sec 4.25 MBytes 4.25 MBytes/sec [SUM] 3.0- 4.0 sec 4.62 MBytes 4.62 MBytes/sec [SUM] 4.0- 5.0 sec 4.62 MBytes 4.62 MBytes/sec [SUM] 0.0- 5.5 sec 27.2 MBytes 4.91 MBytes/sec + dd if=/dev/zero of=/root/test bs=64k count=16k conv=fdatasync 16384+0 records in 16384+0 records out 1073741824 bytes (1.1 GB) copied, 22.7015 s, 47.3 MB/s ============================================================================================================== Sat Aug 8 03:59:01 GMT-3 2015 + mtr -rwc10 decix.de Start: Sat Aug 8 03:59:01 2015 HOST: XXXXXXXXXXXXXXX.de Loss% Snt Last Avg Best Wrst StDev 1.|-- XX.XX.XX.XX 0.0% 10 8.1 6.3 2.0 9.1 2.0 2.|-- 82.211.0.1 0.0% 10 12.4 13.1 8.7 21.8 3.5 3.|-- fra3.xe-0-0-0.accelerated.de 0.0% 10 14.3 13.8 9.1 17.8 3.0 4.|-- sgw2-te-0-0-2-3-ixp.fra.de-cix.net 0.0% 10 9.6 11.8 8.9 17.8 2.9 5.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0 + mtr -rwc10 4.2.2.2 Start: Sat Aug 8 03:59:12 2015 HOST: XXXXXXXXXXXXXXX.de Loss% Snt Last Avg Best Wrst StDev 1.|-- XX.XX.XX.XX 0.0% 10 0.1 5.5 0.1 10.2 3.5 2.|-- 82.211.0.1 0.0% 10 0.3 10.2 0.2 15.3 5.4 3.|-- xe-4-2-1-311.edge4.Frankfurt1.Level3.net 0.0% 10 0.6 13.8 0.6 36.0 11.3 4.|-- ae-1-60.edge5.Frankfurt1.Level3.net 10.0% 10 0.7 11.3 0.7 19.0 6.7 5.|-- b.resolvers.Level3.net 0.0% 10 0.7 10.2 0.6 16.0 5.6 + grep SUM + iperf -c ping.online.net -i 1 -P 10 -f M -t 5 [SUM] 0.0- 1.0 sec 14.6 MBytes 14.6 MBytes/sec [SUM] 1.0- 2.0 sec 11.1 MBytes 11.1 MBytes/sec [SUM] 2.0- 3.0 sec 11.1 MBytes 11.1 MBytes/sec [SUM] 3.0- 4.0 sec 5.75 MBytes 5.75 MBytes/sec [SUM] 4.0- 5.0 sec 4.88 MBytes 4.88 MBytes/sec [SUM] 0.0- 5.6 sec 48.8 MBytes 8.74 MBytes/sec + dd if=/dev/zero of=/root/test bs=64k count=16k conv=fdatasync 16384+0 records in 16384+0 records out 1073741824 bytes (1.1 GB) copied, 27.411 s, 39.2 MB/s