Good point I'll have to check it again... Been so long sine I ftp'd stuff over
a lan via 10BT I forgot the rate. Course the limiting factor here is Hard disk
Data tranfer rate, Unless you have a raid array, you can't come close to the
> Check to see if your NICs are running full-duplex. If so make them
> half-duplex. That made a world of difference for me. By the way
> Patrick, I get 900+ KBps on 10Base-T so unless your hub is 10mb you
> might want to check your NIC also.
> RHL 5.1, 2.0.35 kernel
> > FYI I'm getting close to 960kb on ftp's (over a 100mb nic) on RH 6.1 So it
> > can't be all installs that are problematic.
> > Patrick
> > > Thank you for your help. I tried that, it didn't help.
> > > Any other ideas?
> > > jinsong
> > > PS: yes, the kernel is 2.2.12 from redhat 6.1.
> > > > [...]
> > > > > can only get up to 60kB/sec ftp connection. I can open multiple
> > > > > connections, but each one only get 60kB/sec.
> > > > > Can anyone give me a clue what could be wrong?
> > > > [...]
> > > > If you have a 2.2.something kernel, please try the following and
> > > > let me know whether it helps or not (and if you can, how much).
> > > > You can do this without rebooting, and can set them back (echo 1 ...)
> > > > again just as easily. This has helped some people, but clearly not
> > > > everyone:
> > > > In /proc/sys/net/ipv4, do:
> > > > echo 0 > tcp_window_scaling
> > > > echo 0 > tcp_sack
> > > > echo 0 > tcp_timestamps
> > > > That turns off some (all?) of the IP features that were added to
> > > > support high "bandwidth*delay product", as described in RFC 1323 "TCP
> > > > Extensions for High Performance" ... those extensions, as described
> > > > in the RFC, only help on very fast (high bandwidth) and/or very
> > > > congested (high delay) paths, and supposedly won't hurt "normal"
> > > > paths, but in my case disabling them brings me back to pre-2.2.x
> > > > performance. I'm very interested in whether that helps you, too.
> > > Sent via Deja.com http://www.deja.com/
> > > Before you buy.
> ~~~ Rob Quiles Tel 919-847-0757
> ~~ Oracle DBA Fax 919-847-9410