[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: Ethernet slowness

> I have a new Etherfast PCMPC100 card. But it seems to be _much_ slower under
> Linux than under Windows 98, on the same machine. For example, FTP'ing or
> scp'ing a 1.8MB test file from another machine in the same building took 50s
> under Linux (38kB/s), 2.8s under Windows (675kB/s).
> Can anyone think of a reason for this? Anything I could tinker to speed it
> up?
Wildly assuming that nothing else was going on that should slow everybody down
(MSwin or *ix) right when you were testing Linux...

Not sure, but this might:
	cat /proc/sys/net/ipv4/tcp_keepalive_time

It's probably 7200.

	echo 360 > /proc/sys/net/ipv4/tcp_keepalive_time

This really helps stabilize my ssh sessions when I'm behind a firewall.
It's "noisier" packetwise since tcp gives up on putzy packets sooner, and 
resends 'em.

And no, I dunno what the MSwin equivalent defaults really are, but maybe 
it's revealed somewhere in your registry.

> My machine: Packard Bell EasyLite FX 500 = NEC Versa FX.
> My card: Etherfast PCMPC100.
> Our network: 10baseT.
> Packages: Potato, i.e.
>  ii  kernel-source- 2.2.15-3       Linux kernel source for version 2.2.15
>  ii  pcmcia-cs      3.1.8-16       PCMCIA Card Services for Linux.
>  ii  pcmcia-modules 3.1.8-14       PCMCIA Modules for Linux (kernel 2.2.15).
>  ii  pcmcia-source  3.1.8-16       PCMCIA Card Services source.
> TIA.

Best of Luck

* Heather * star@ many places 

Reply to: