Received: by 2002:a25:1985:0:0:0:0:0 with SMTP id 127csp203339ybz; Wed, 15 Apr 2020 07:13:42 -0700 (PDT) X-Google-Smtp-Source: APiQypLFfsM/0STq9vm417OSp6N0/1ersocVzISBa05aGvY04GvJwxt2h1fMVofaopYZqMWAPlWs X-Received: by 2002:a17:906:32c5:: with SMTP id k5mr1482243ejk.107.1586960021920; Wed, 15 Apr 2020 07:13:41 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1586960021; cv=none; d=google.com; s=arc-20160816; b=WaOReWy8LEDFy/i0qrOdpsbFKL6BoQW76h34rK5zAduoNRbgVhyGH834ZvPYBjCXet VzNDS6V/N7OEU+76+6gtXjdj/Pxiz/oD+xui1DvxnW74oaz4XULbNlMYoBhnoyMTMCit JXpe0i42xnp3LF1tz+rX5Td6yMkUrazHAiCbdmpfsUPTrZRUqgCX0UZP7dpduYPtImni X/CCm8g+beIpC+v5HM9C6DnEHRSC3arkTFg2loL1MI3j1iOPbH8xqW/fZkiNx5SrMrs0 1IGEj8R6nJzOxmzS/hLAeYjGrajjBh+ln7DV+c5AlwBE8emQ0GftTLYt/kNK9crI5Vou X8OQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:subject:cc:to:from:date; bh=x4ITLF+7+oATnZ7PJH9fiz6ewKpjL3B9Nz2vnmERu2s=; b=Pp4ZQWhFjZPoOxjbZb2LDj9vMEqpbOfqVGsOg4QIHlLdEU7SAAREiT5Kf2/AmyX8Y0 wsY7i0nKMK4HeqPw4xrewzYUdHVuBsPR5xKRjQ0jvwQI90tf2wNQNXbwVYQDGFOGUoNa 2paRD278Go92qyzREO2TRG5q3tTInjGN8pLSEhyYtMa4gpVlEa3M8+C1ULVHXykTzi9c 4u50iuiGH3+mLrrJPXWTa3SMytISNsZ8X6bCYhqU1Abhz0GOUB8/OhDnEsa/tvl6XEUG 6NehdrHBX4GDxaRkBdtIDMw021pC5sagpm80i7NLWVx9EXTu/UpwXXdNE2ZIRjWQGUYo n3nw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id ce15si12066168edb.442.2020.04.15.07.13.17; Wed, 15 Apr 2020 07:13:41 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391817AbgDNVyd (ORCPT + 99 others); Tue, 14 Apr 2020 17:54:33 -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