650MHz Mobile PIII (Coppermine)

(Don't use CONFIG_NETFILTER_DEBUG.  It calls (ip_queue_xmit nf_hook_slow skb_linearize)
even when nothing's turned on.

2.4.2-pre2, sendfile                     29.7%
2.4.2-pre2, send(8k)                     28.3%
2.4.2-pre2, send(128k)                   32.4%

2.4.2-pre2-zc, sendfile                  18.8%
2.4.2-pre2-zc, send(8k)
2.4.2-pre2-zc, send(128k)


