| To: | "Benjamin C.R. LaHaise" <blah@xxxxxxxxx> |
|---|---|
| Subject: | Re: [UPDATE] zerocopy.. While working on ip.h stuff |
| From: | "David S. Miller" <davem@xxxxxxxxxx> |
| Date: | Mon, 26 Feb 2001 16:05:22 -0800 (PST) |
| Cc: | michael@xxxxxxxxxxxxxx, Jan Rekorajski <baggins@xxxxxxxxxxxxxxxxx>, Chris Wedgwood <cw@xxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxx, waltje@xxxxxxxxxxxxxxxxxxx |
| In-reply-to: | <Pine.LNX.3.96.1010226184514.9835E-100000@xxxxxxxxxxxxxxx> |
| References: | <15002.58854.215318.882641@xxxxxxxxxxxxxxx> <Pine.LNX.3.96.1010226184514.9835E-100000@xxxxxxxxxxxxxxx> |
| Sender: | owner-netdev@xxxxxxxxxxx |
Benjamin C.R. LaHaise writes: > Since the ip header fits in the cache of some CPUs (like the P4), > this becoming a cheaper operation than ever before. At gigapacket rates, it becomes an issue. This guy is talking about tinkering with new IP _options_, not just the header. So even if the IP header itself fits totally in a cache line, the options afterwardsd likely will not and thus require another cache miss. Later, David S. Miller davem@xxxxxxxxxx |
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