<br><br><div class="gmail_quote">On Sun, May 29, 2011 at 10:33 AM, Eric Dumazet <span dir="ltr"><<a href="mailto:eric.dumazet@gmail.com">eric.dumazet@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Le dimanche 29 mai 2011 à 10:07 -0600, Dave Taht a écrit :<br>
<div class="im">><br>
><br>
> On Sun, May 29, 2011 at 9:51 AM, Juliusz Chroboczek<br>
> <<a href="mailto:jch@pps.jussieu.fr">jch@pps.jussieu.fr</a>> wrote:<br>
> >> Are you seeing high CPU load in interrupt context? (Run<br>
> top.)<br>
><br>
> > Yes. 99% sirq.<br>
><br>
><br>
> Could be due to a simplistic Ethernet driver. If you have the<br>
> time and<br>
> energy, you may want to ask on <a href="http://dev.openwrt.org" target="_blank">dev.openwrt.org</a>.<br>
><br>
> I will have some energy and time, shortly.<br>
><br>
> That said, several great openwrt people are on this list, and may be<br>
> able to weigh in.<br>
><br>
> I'm glad that the limit of about 130Mbit on the ethernet side for gigE<br>
> could be mitigated with a better driver. (and that said, 130Mbit is<br>
> "good enough" for most of the world)<br>
><br>
<br>
</div>Hmm, 130 Mbits sound very low. What linux version is it, and what the<br>
driver is exactly, so that I take a look ?<br>
<br>
<br></blockquote><div><br>The ethernet driver is the ag71xx driver as present in the wndr3700v2 (and mucho related atheros hardware). Regrettably so far as I can tell, this one is out of tree, and is incorporated in the openwrt build via a string of patches. <br>
<br><a href="https://dev.openwrt.org/browser/trunk/target/linux/ar71xx/files/drivers/net/ag71xx">https://dev.openwrt.org/browser/trunk/target/linux/ar71xx/files/drivers/net/ag71xx</a><br><br>I think.<br><br>Gabor sent patches for it to me for ethtool that I have not yet tried.<br>
<br>The kernel being used in capetown[1] is 2.6.37.6. - patched forward from 2.6.39 for the pfifo ecn bug, the ipv6 ecn bug, and several other bufferbloat related things like sfb...<br></div></div><br clear="all"><br>1: <a href="http://www.bufferbloat.net/projects/bismark/wiki/Capetown">http://www.bufferbloat.net/projects/bismark/wiki/Capetown</a><br>
-- <br>Dave Täht<br>SKYPE: davetaht<br>US Tel: 1-239-829-5608<br><a href="http://the-edge.blogspot.com" target="_blank">http://the-edge.blogspot.com</a> <br>