Tuning: 100mbit faster, gbit slower.

[Stefan Lambrev]

Daniel Andersson wrote:
> Hey!
>
> I was trying to milk the most out of my 100/100. What I
> ended up with was something, to me, quite odd. When I
> hadn't done anything I could ftp things from my server
> box at 50mb/s and run rtorrent at about 9-10 mb/s at most.
> After my "tuning" I can only ftp at a very "choppy"
> 30-40mb/s, but rtorrent runs at about 11mb/s.
>   
Are you sure the problem is in the network ?
Sounds like the bottleneck is your HDD.
You can run netperf to check this :)
> This is what I did:
>
> kern.ipc.maxsockbuf=16777216
> net.inet.tcp.sendbuf_max=16777216
> net.inet.tcp.recvbuf_max=16777216
>
> according to
> http://dsd.lbl.gov/TCP-tuning/FreeBSD.html
> every other setting there was default
> I believe.
>
> I also set these:
>
> net.inet.tcp.recvspace: 262144
> net.inet.tcp.sendspace: 262144
>
> dmesg:
> http://pastebin.org/24780
>
> Am I just imagining that rtorrent runs faster?
> Can't ftp handle high buffers or did I mess
> something up? Is there something else I
> could do to make it faster? Setting up
> polling perhaps?
>
> Cheers,
> Daniel Andersson
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