On Wed, Nov 07, 2007 at 09:18:21PM +0000, Tony Sarendal wrote:
[snip]
> What is the tcp windowsize of your machine ?
> OpenBSD in default install runs with window size of 16k, which in the
> aprox 40ms
> RTT seen in the trace about gives a theoretical max of ~400kByte/sec.
>
> If you increase that to the 64k your linux boxes probably run that
> would give ~ 1600kByte/sec.
I used the default window size of 16k, but in the future I'll certainly
choose something greater:
[EMAIL PROTECTED]:~$ sudo sysctl net.inet.tcp.recvspace=65536
net.inet.tcp.recvspace: 16384 -> 65536
[EMAIL PROTECTED]:~$ sudo sysctl net.inet.tcp.sendspace=65536
net.inet.tcp.sendspace: 16384 -> 65536
[EMAIL PROTECTED]:~$ wget -O /dev/null http://obsd.dk/50MB
--22:51:46-- http://obsd.dk/50MB
=> `/dev/null'
Resolving obsd.dk... 87.230.22.203
Connecting to obsd.dk|87.230.22.203|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 52,428,800 (50M) [text/plain]
100%[====================================>] 52,428,800 1.28M/s ETA
00:00
22:52:25 (1.27 MB/s) - `/dev/null' saved [52428800/52428800]
[EMAIL PROTECTED]:~$ sudo sysctl net.inet.tcp.recvspace=131072
net.inet.tcp.recvspace: 65536 -> 131072
[EMAIL PROTECTED]:~$ sudo sysctl net.inet.tcp.sendspace=131072
net.inet.tcp.sendspace: 65536 -> 131072
[EMAIL PROTECTED]:~$ wget -O /dev/null http://obsd.dk/50MB
--22:52:46-- http://obsd.dk/50MB
=> `/dev/null'
Resolving obsd.dk... 87.230.22.203
Connecting to obsd.dk|87.230.22.203|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 52,428,800 (50M) [text/plain]
100%[====================================>] 52,428,800 1.52M/s ETA
00:00
22:53:19 (1.50 MB/s) - `/dev/null' saved [52428800/52428800]
That solved the mystery :-) Thank you very much.
Martin
