Question for one and all - am experiencing some peculiar network characteristics which look like a throttle on outbound connections.
I've just had some users report that VPS has only been distributing files at ~10Mbps rather than the 100Mbps. I've now tested this and got the same results.
In order to test this I have set up a 13MB file on both machines available to both ftp and http access. The results (an average or 3 runs) are shown below:
Method | Hosted Machine | Fetching Machine | Average Speed Achieved | Best Speed |
FTP get | 1&1 VPS server | 115.124.110.xx | 2.8MB/s | 7MB/s |
HTTP get |1&1 VPS server | 115.124.110.xx | 3.8MB/s | 6.8MB/s |
FTP get | 115.124.110.xx | 1&1 VPS server | 650 KB/s | 1.2MB/s |
HTTP get | 115.124.110.xx | 1&1 VPS server | 670 MB/s | 1.2MB/s |
Given that when grabbing files from a remote machine I get towards 10MB/s, but when supplying file I get no man 1.2MB/s (about 10Mbps), I can't see that it's anything else other than a throttle. I've also checked iptables, tc and mod_bandwidth.
I've raised a rather urgent support ticket, but does anyone else have any ideas where else I could check ?