From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH] dcache: better name hash function Date: Mon, 26 Oct 2009 22:24:28 -0700 (PDT) Message-ID: <20091026.222428.80364204.davem@davemloft.net> References: <9986527.24561256620662709.JavaMail.root@tahiti.vyatta.com> <19864844.24581256620784317.JavaMail.root@tahiti.vyatta.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: eric.dumazet@gmail.com, akpm@linux-foundation.org, torvalds@linux-foundation.org, opurdila@ixiacom.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk To: stephen.hemminger@vyatta.com Return-path: In-Reply-To: <19864844.24581256620784317.JavaMail.root@tahiti.vyatta.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Stephen Hemminger 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.