From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C5CCCC433E0 for ; Fri, 19 Mar 2021 04:14:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 93DF464E86 for ; Fri, 19 Mar 2021 04:14:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233508AbhCSEMv (ORCPT ); Fri, 19 Mar 2021 00:12:51 -0400 Received: from mga09.intel.com ([134.134.136.24]:46764 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229447AbhCSEMd (ORCPT ); Fri, 19 Mar 2021 00:12:33 -0400 IronPort-SDR: F6l1nLz741Z3AEC1YyfcDsdEe+2RkOfPJQp04RX6HUeLHX0t7d41LU2VfAVsZyVNgeCNAq6Mlj cn59ikpsKSSA== X-IronPort-AV: E=McAfee;i="6000,8403,9927"; a="189914065" X-IronPort-AV: E=Sophos;i="5.81,259,1610438400"; d="scan'208";a="189914065" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Mar 2021 21:12:33 -0700 IronPort-SDR: DbxeYJWDo8PaIc0g5bSFRA2ISTE+Ee2UrlNJRpC9K0qH6ddKmbgnd4tf7jT/XOubLFQ2Rj1asl EV6CjELPFhjQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,259,1610438400"; d="scan'208";a="591725210" Received: from tassilo.jf.intel.com (HELO tassilo.localdomain) ([10.54.74.11]) by orsmga005.jf.intel.com with ESMTP; 18 Mar 2021 21:12:32 -0700 Received: by tassilo.localdomain (Postfix, from userid 1000) id DC04B3023AF; Thu, 18 Mar 2021 21:12:32 -0700 (PDT) From: Andi Kleen To: Jim Cromie Cc: jbaron@akamai.com, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH v3 00/18] dynamic debug diet plan References: <20210316050801.2446401-1-jim.cromie@gmail.com> Date: Thu, 18 Mar 2021 21:12:32 -0700 In-Reply-To: <20210316050801.2446401-1-jim.cromie@gmail.com> (Jim Cromie's message of "Mon, 15 Mar 2021 23:07:43 -0600") Message-ID: <87ft0rvl1r.fsf@linux.intel.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Jim Cromie writes: > CONFIG_DYNAMIC_DEBUG creates a struct _ddebug (56 bytes) for each > callsite, which includes 3 pointers to: module, filename, function. > These are repetetive, and compressible, this patch series goes about > doing that, it: So how much memory does it actually save? -Andi