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Message-ID: <4FA34F7B.1080402@mips.com> Date: Fri, 4 May 2012 11:39:39 +0800 From: Deng-Cheng Zhu <dczhu@...s.com> To: Tom Herbert <therbert@...gle.com> CC: <davem@...emloft.net>, <netdev@...r.kernel.org>, <eric.dumazet@...il.com> Subject: Re: [PATCH v2] RPS: Sparse connection optimizations - v2 On 05/04/2012 11:22 AM, Tom Herbert wrote: >> +struct cpu_flow { >> + struct net_device *dev; >> + u32 rxhash; >> + unsigned long ts; >> +}; > > This seems like overkill, we already have the rps_flow_table and this > used in accelerated RFS so the device can also take advantage of > steering. Maybe somehow program that table for your sparse flows? In fact I did ever try something different in rps_flow_cnt (except for rps_cpus, the only tunable thing relating to RPS in sysfs, am I missing something?) and found no effect in my tests (iperf between 2 PCs via Malta which works as router and uses iptables/NAT+RPS)... Deng-Cheng -- 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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