On Tue, Feb 20, 2007 at 02:12:09AM -0800, David Miller ([EMAIL PROTECTED]) wrote: > From: Eric Dumazet <[EMAIL PROTECTED]> > Date: Tue, 20 Feb 2007 11:04:15 +0100 > > > Using a jenkin's hash permits a better hash distribution for a litle > > cpu cost. I will post later a distribution simulation based on the > > data gathered from the same real server. > > Actually someone (I think it was Evgeniy in fact) made such > comparisons and found in his studies that not only does the current > ehash xor hash function distribute about as well as jenkins, it's > significantly cheaper to calculate :-)
Yep, it happend to be my tests :) Jenkins hash was slower and had significant artifacts for some usage cases ended up with extremely long chain length. One can find more details at http://tservice.net.ru/~s0mbre/blog/2006/05/14#2006_05_14 http://tservice.net.ru/~s0mbre/blog/2006/06/01#2006_06_01 -- Evgeniy Polyakov - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
