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Date: Sat, 24 Apr 2010 12:22:30 -0400 From: jamal <hadi@...erus.ca> To: Changli Gao <xiaosuo@...il.com> Cc: David Miller <davem@...emloft.net>, Tom Herbert <therbert@...gle.com>, Eric Dumazet <eric.dumazet@...il.com>, netdev@...r.kernel.org Subject: Re: [PATCH v3] rps: optimize rps_get_cpu() On Sun, 2010-04-25 at 00:19 +0800, Changli Gao wrote: > Maybe I have used the wrong word. Sorry. If the ports are already in > cache, the new code has only one cache access for ports, and the later > operations are in registers. Ok, that makes more sense - so your commit log is confusing. You are saving a shift operation per packet - probably not a big deal but better than zero ;-> cheers, jamal -- 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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