| To: | Ben Greear <bgreear@xxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: zerocopy results on GigE |
| From: | Pekka Pietikainen <pp@xxxxxxxxxxxxxx> |
| Date: | Tue, 6 Feb 2001 20:48:19 +0200 |
| Cc: | Pekka Pietikainen <pp@xxxxxxxxxxxxxx>, netdev@xxxxxxxxxxx |
| In-reply-to: | <3A804411.F8EE54D0@mayannetworks.com> |
| References: | <20010206194919.A633@netppl.fi> <3A804411.F8EE54D0@mayannetworks.com> |
| Sender: | owner-netdev@xxxxxxxxxxx |
On Tue, Feb 06, 2001 at 11:36:01AM -0700, Ben Greear wrote: > I assume this copies (at least logically) the data to/from user-space? Yup, this is user-space to user-space (including the STP numbers :) ), except the MSG_TRUNC which makes the kernel skip the copy to userspace on the receiver. Useless in real life, but nice for testing maximum transmission speed (since it shows how fast things would be if the receiver could keep up) -- Pekka Pietikainen |
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