From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: Re: [RFC] truesize lies Date: Sun, 09 Oct 2011 12:25:09 -0700 Message-ID: References: <1318186948.5276.49.camel@edumazet-laptop> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev To: Eric Dumazet Return-path: Received: from mga11.intel.com ([192.55.52.93]:22708 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752017Ab1JITZJ (ORCPT ); Sun, 9 Oct 2011 15:25:09 -0400 In-Reply-To: <1318186948.5276.49.camel@edumazet-laptop> (Eric Dumazet's message of "Sun, 09 Oct 2011 21:02:28 +0200") Sender: netdev-owner@vger.kernel.org List-ID: Eric Dumazet writes: > After some analysis, I found full sized tcp skbs (len=1440) had a 2864 > bytes truesize on my wifi adapter. Ouch... It's probably more like 4096. slab rounds to powers of two. > What should we do exactly ? Give up? It's always been a lie. -Andi -- ak@linux.intel.com -- Speaking for myself only