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Message-ID: <20100502154649.GA18063@gargoyle.fritz.box> Date: Sun, 2 May 2010 17:46:49 +0200 From: Andi Kleen <andi@...stfloor.org> To: Eric Dumazet <eric.dumazet@...il.com> Cc: David Miller <davem@...emloft.net>, hadi@...erus.ca, xiaosuo@...il.com, therbert@...gle.com, shemminger@...tta.com, netdev@...r.kernel.org, lenb@...nel.org, arjan@...radead.org Subject: Re: [PATCH v6] net: batch skb dequeueing from softnet input_pkt_queue > In this test, all 16 queues of one BCM57711E NIC (1Gb link) delivers > packets at about 1.300.000 pps to 16 cpus (one cpu per queue) and these > packets are then redistributed by RPS to same 16 cpus, generating about > 650.000 IPI per second. BTW if rps was SMT aware it could avoid a lot of the IPIs in the first place. -Andi -- 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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