From: Andi Kleen <ak@suse.de> Date: Mon, 9 Jun 2003 12:13:02 +0200 On Mon, Jun 09, 2003 at 03:03:34AM -0700, David S. Miller wrote: > True, but the real bug is that we're initializing any of this > crap here at all. Right now we write over the same cachelines > 3 or so times. It should really just happen once. It's unlikely to be the reason for the profile hit on a modern x86. They are all really fast at reading/writing L1. It's store buffer compression that's being messed up. I've seen this on just about any processor. This is also why the net/core/skbuff.c initialization hacks are so effective as well. Trust me, this has every symptom of excess store buffer traffic :) - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
