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Date: Mon, 26 Oct 2009 22:24:28 -0700 (PDT) From: David Miller <davem@...emloft.net> To: stephen.hemminger@...tta.com Cc: eric.dumazet@...il.com, akpm@...ux-foundation.org, torvalds@...ux-foundation.org, opurdila@...acom.com, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, viro@...iv.linux.org.uk Subject: Re: [PATCH] dcache: better name hash function From: Stephen Hemminger <stephen.hemminger@...tta.com> Date: Mon, 26 Oct 2009 22:19:44 -0700 (PDT) > How important is saving the one division, versus getting better > distribution. 80 cpu cycles or more on some processors. Cheaper to use jenkins with a power-of-2 sized hash. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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