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Date: Tue, 08 Jul 2014 22:35:41 +0200 From: Wolfgang Walter <linux@...m.de> To: netdev <netdev@...r.kernel.org> Subject: GRO: very bad routing performance with 3.14.4 for GRE-packets Hello, I upgraded a router from 3.10.46 to 3.14.4 and I see a dramatic perfomance loss for GRE-pakets if (and only if) GRO is enabled on the incoming or outgoing interface (drops to 1/50th to 1/100th). Other traffic is just fine. The router itself is not endpoint of the GRE-tunnel. The router has connection tracking enabled and does NAT (but most of the traffic is not NATed nor are GRE-packets). The network card is an Intel Corporation I350 Gigabit (both interfaces). Regards, -- Wolfgang Walter Studentenwerk München Anstalt des öffentlichen Rechts -- 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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