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Date: Mon, 1 Sep 2008 18:09:26 +0300 From: Rémi Denis-Courmont <rdenis@...phalempin.com> To: Andi Kleen <andi@...stfloor.org> Cc: netdev@...r.kernel.org, Bernhard Schmidt <berni+ipv6@...kenwald.de> Subject: Re: IPv6 tunnel scalability problem Le lundi 1 septembre 2008 15:04:58 Andi Kleen, vous avez écrit : > Rémi Denis-Courmont <rdenis@...phalempin.com> writes: > > I have been maintaining a TUN-based Linux implementation of > > Teredo/RFC4380. On a busy node, this can trigger quite many peers on the > > virtual point-to-point tunnel interface. I have received complaints that > > the whole thing seems to hit some severe performance bottleneck when this > > happens. It is not clear to me at this point whether it's a kernel or a > > user problem. So I have been writing a stress test. > > You could use oprofile to find out where the CPU time is going. > That would work even during normal operation. Post the opreport -l output Understood. But this far, the kernel crashes during my stress test... -- Rémi Denis-Courmont http://www.remlab.net/ -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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