LRO support for IPv6
venkatduvvuru.ml at gmail.com
Tue May 22 17:35:29 UTC 2012
Thanks for the response.
I observed that there is a significant performance drop in case of IPv6 on
the "rx" side.
While I'm able to hit line rate ~9.5 Gbps on a 10gb NIC for IPv4..I could
only get ~6 Gbps on the "rx" front for IPv6...However "tx" for IPv6 is on
par with IPv4 hitting almost line rates.
Could this be because of lack of LRO6??
Note: hwpmc profiling shows that most of the time is spent in the IPv6
On Tue, May 22, 2012 at 10:37 PM, Bjoern A. Zeeb <bz at freebsd.org> wrote:
> On 22. May 2012, at 17:04 , Jack Vogel wrote:
> > Oh, that's right, distracted with other projects and I forgot, now we
> just need
> > to have an LRO that works with forwarding eh :)
> That's a 6 line bainaid commit afterwards, basically returning form the
> LRO queuing
> function in case forwarding is turned on for that address family; a
> proper solution
> for long term can than be done whenever we feel like it. The above we
> should have done
> years ago;)
> > You ROCK bz :)
> > Jack
> > On Tue, May 22, 2012 at 10:01 AM, Bjoern A. Zeeb <bz at freebsd.org> wrote:
> > On 22. May 2012, at 16:50 , Jack Vogel wrote:
> > > The LRO code as it stands right now is IPV4 specific, it would be nice
> > > extend it, one of
> > > many improvements that may get done at some point.
> > I am about to commit it to HEAD. Bear another few days with me; I know
> > I am running late but committing new code had less prio than some other
> > real life things currently.
> > I'll also bring TSO6, etc...
> Bjoern A. Zeeb You have to have visions!
> It does not matter how good you are. It matters what good you do!
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