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Date: Thu, 15 Apr 2010 01:57:56 -0700 (PDT) From: David Miller <davem@...emloft.net> To: eric.dumazet@...il.com Cc: therbert@...gle.com, hadi@...erus.ca, shemminger@...tta.com, netdev@...r.kernel.org, robert@...julf.net, xiaosuo@...il.com, andi@...stfloor.org Subject: Re: rps perfomance WAS(Re: rps: question From: Eric Dumazet <eric.dumazet@...il.com> Date: Wed, 14 Apr 2010 22:57:41 +0200 > RPS can be tuned (Changli wants a finer tuning...), it would be > intereting to tune multiqueue devices too. I dont know if its possible > right now. Only NIU allows real detailed control over queue selection and stuff like that, because the hardware has a real TCAM for packet matching and packets which match in TCAM entries can steer to different collections of queues. We have ethtool interfaces for this (ETHTOOL_GRXCLS*), so you can change it. For most other chips we only have interfaces for modifying the RX hashing algorithm or what the RX hash covers, stuff like that. See also ETHTOOL_GRXFH, ETHTOOL_SRXFH, ETHTOOL_SRXNTUPLE, and ETHTOOL_GRXNTUPLE, the latter two of which were added for Intel NICs. -- 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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