Re: TCP performance on GBE LAN

From: sai narasimhamurthy
Date: Fri Mar 04 2005 - 18:21:20 EST


It works fine now !
Just increased my Txdescriptor and Ring buffer
descriptors on GBE. Makes a BIG difference.




--- Stephen Hemminger <shemminger@xxxxxxxx> wrote:

> On Thu, 3 Mar 2005 19:14:44 -0800 (PST)
> sai narasimhamurthy <sai_narasi@xxxxxxxxx> wrote:
>
> > Hi,
> > I am using a Dell poweredge 2400 server , P3, 256
> Mb,
> > 82546 EB GBE card, E1000.
> > I tried working with various very high window
> options
> > (w 32M etc) in iPERF ...but to no awail!! The
> > throughput saturates at around 140 Mb/s even for
> > jumbo frames.:(
> > I will revert to my older kernels and see if I get
> > somewhere, ...pl keep the comments comming!
> >
> What is the output of 'lspci -v'? I have seen E1000
> cards that claim
> to be 64-bit PCI but really are only 32 bit.
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