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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_2 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 83087C2BB1D for ; Tue, 14 Apr 2020 21:54:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6311E206A2 for ; Tue, 14 Apr 2020 21:54:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391828AbgDNVyk (ORCPT ); Tue, 14 Apr 2020 17:54:40 -0400 Received: from mail.kernel.org ([198.145.29.99]:44994 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732193AbgDNVyY (ORCPT ); Tue, 14 Apr 2020 17:54:24 -0400 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3717D20767; Tue, 14 Apr 2020 21:47:04 +0000 (UTC) Date: Tue, 14 Apr 2020 17:47:02 -0400 From: Steven Rostedt To: Peter Zijlstra Cc: Matt Helsley , Julien Thierry , linux-kernel@vger.kernel.org, Josh Poimboeuf , Ingo Molnar , Miroslav Benes Subject: Re: [RFC][PATCH 00/36] objtool: Make recordmcount a subcommand Message-ID: <20200414174702.1d540e24@gandalf.local.home> In-Reply-To: <20200414211754.GK2483@worktop.programming.kicks-ass.net> References: <3a3f70df-07b0-91d9-33e1-e997e72b0c5c@redhat.com> <20200414093506.7b91bbbb@gandalf.local.home> <064f41bd-0dfe-e875-df7c-214184c29fa7@redhat.com> <20200414115458.093e221b@gandalf.local.home> <20200414200910.GB118458@rlwimi.vmware.com> <20200414204729.GJ2483@worktop.programming.kicks-ass.net> <20200414170520.4d347caa@gandalf.local.home> <20200414211754.GK2483@worktop.programming.kicks-ass.net> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 14 Apr 2020 23:17:54 +0200 Peter Zijlstra wrote: > > Do we want that? Matters how long that takes. > > We do want that, however it is conditional on CONFIG_DEBUG_ENTRY and > does some rather specific validation. On a defconfig based kernel it > takes ~2.5 seconds, significantly more an an allyesconfig. Is that timed on your laptop, or on the monster machine you normally do your builds on? 2.5 seconds for you may be 2.5 minutes for others! ;-) -- Steve