From mboxrd@z Thu Jan 1 00:00:00 1970 From: "David S. Miller" Subject: Re: Route cache performance under stress Date: Sun, 08 Jun 2003 23:49:46 -0700 (PDT) Sender: linux-net-owner@vger.kernel.org Message-ID: <20030608.234946.35677224.davem@redhat.com> References: <20030608234926.GA9453@netnation.com> <001001c32e19$81bc7ea0$4a00000a@badass> <20030609064719.GA20613@netnation.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: xerox@foonet.net, fw@deneb.enyo.de, netdev@oss.sgi.com, linux-net@vger.kernel.org Return-path: To: sim@netnation.com In-Reply-To: <20030609064719.GA20613@netnation.com> List-Id: netdev.vger.kernel.org From: Simon Kirby Date: Sun, 8 Jun 2003 23:47:19 -0700 Really, though, shouldn't the route cache overhead be fairly small in comparison to everything else involved in forwarding? If GC is just doing dumb things, it is possible. These costs can be hidden in non-rtcache places in the form of cache misses and displacement on rtcache objects which can show up as higher costs in other places.