Not sure that it's a limitation on Linode's side. I think they just raised the outbound limit from 30MBps to 50MBps. I have transferred large files at > 256-300Kbps.

I have transferred files out at over 2.5 Meg/Sec.

I also have similiar results with eld101. With segmented downloads I can easily go up to 2.5 MB/s.

Indeeed, depending on the protocol, I can get upto 3 MB/s

I can pretty much max out my FIOS 20mbit/s download speed, serving data from my linode (serving a 50Mbyte file from a http session peaks and holds consistent at around 18.72bit/s)

@sweh:

(serving a 50Mbyte file from a http session peaks and holds consistent at around 18.72bit/s)

18.72 bits per second is on the order of TCP/IP Over Carrier Pigeon, and yes it is an official internet standard:

http://www.rfc-editor.org/rfc/rfc1149.txt

There are several advantages to "Transmission of IP Datagrams on Avian Carriers", for example - as noted in the RFC - low altitude service. Here are photographs of the first pings:

http://www.blug.linux.no/rfc1149/vegard … index.html">http://www.blug.linux.no/rfc1149/vegard_bilder/index.html

and a photo of the very first data packet in transmission:

http://www.blug.linux.no/rfc1149/vegard … g.jpg.html">http://www.blug.linux.no/rfc1149/vegardbilder/tn/18pigeonsitting.jpg.html

James

@zunzun:

@sweh:

(serving a 50Mbyte file from a http session peaks and holds consistent at around 18.72bit/s)

18.72 bits per second is on the order of TCP/IP Over Carrier Pigeon

Someone stole my "M". That's my story and I'm sticking to it :-)

(fully aware of the avian packet protocol…)

If I download a single file, it is very fast.

If I have concurrent requests the max. are 90Kb / s. (HTTP connections) :(

I have following settings in /etc/sysctl.conf (working well on normal servers):

vm.swappiness=25

net.core.rmem_default = 256960

net.core.rmem_max = 256960

net.core.wmem_default = 256960

net.core.wmem_max = 256960

net.ipv4.tcp_timestamps = 0

net.ipv4.tcp_sack =1

net.ipv4.tcpwindowscaling = 1

net.ipv4.tcptwreuse=1

net.ipv4.tcptwrecycle=1

net.ipv4.tcpkeepalivetime=1000

net.ipv4.tcpmaxsyn_backlog=4096

net.ipv4.tcpfintimeout=15

net.ipv4.tcpmaxtw_buckets=65536