Re: GigE Performance in Dom0

["Sam Fourman Jr." <sfourman%gmail.com@localhost>]

On Fri, Mar 19, 2010 at 6:38 AM, Greg Troxel <gdt%ir.bbn.com@localhost> wrote:
>
> So you are saying that the mere presence of the xentool33 package causes
> incoming TCP to what is essentially a discard port to drop from 928 Mb/s
> to 228 Mb/s?

Yes it appears, that is exactly, what happened

on the machine with Xentools33 installed, I do not even have a bridge
created.. This is just weird...
see ifconfig info below

Sam Fourman Jr.
Fourman Networks


# ifconfig -a
nfe0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        
capabilities=3f00<IP4CSUM_Rx,IP4CSUM_Tx,TCP4CSUM_Rx,TCP4CSUM_Tx,UDP4CSUM_Rx,UDP4CSUM_Tx>
        enabled=0
        address: 00:30:48:cf:34:e4
        media: Ethernet autoselect (none)
        status: no carrier
        inet 0.0.0.0 netmask 0xff000000 broadcast 255.255.255.255
        inet6 fe80::230:48ff:fecf:34e4%nfe0 prefixlen 64 scopeid 0x1
nfe1: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
        
capabilities=3f00<IP4CSUM_Rx,IP4CSUM_Tx,TCP4CSUM_Rx,TCP4CSUM_Tx,UDP4CSUM_Rx,UDP4CSUM_Tx>
        enabled=0
        address: 00:30:48:cf:34:e5
        media: Ethernet autoselect
        status: no carrier
wm0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        
capabilities=7ff80<TSO4,IP4CSUM_Rx,IP4CSUM_Tx,TCP4CSUM_Rx,TCP4CSUM_Tx,UDP4CSUM_Rx,UDP4CSUM_Tx,TCP6CSUM_Rx,TCP6CSUM_Tx,UDP6CSUM_Rx,UDP6CSUM_Tx,TSO6>
        enabled=0
        address: 00:1b:21:50:e7:bf
        media: Ethernet autoselect (1000baseT full-duplex)
        status: active
        inet 192.168.12.66 netmask 0xffffff00 broadcast 192.168.12.255
        inet6 fe80::21b:21ff:fe50:e7bf%wm0 prefixlen 64 scopeid 0x3
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 33648
        inet 127.0.0.1 netmask 0xff000000
        inet6 ::1 prefixlen 128
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x4