From: Diwaker G. <diw...@gm...> - 2004-11-23 21:35:21
|
> One thing you might want to try is to change a line in the file > linux-2.6.9-xenU/drivers/xen/netfront/netfront.c. > From: > #define RX_MIN_TARGET 8 > To: > #define RX_MIN_TARGET NETIF_RX_RING_SIZE > > One possibility is that dynamic buffer sizing is dropping some packets > and causing TCP to crap itself. > > If this improves things then I'll have to be much more careful about > shrinking the buffers, and/or add a config option to disable the > resizing completely. > > -- Keir > My bad. Sorry about the false alarm everyone, it was a routing issue. With the correct routing setup, I can see upto 930 Mbps between VMs running on 2 distinct physical machines in the cluster. Cheers! -- Diwaker Gupta http://resolute.ucsd.edu/diwaker |