Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756360AbYBWLvp (ORCPT ); Sat, 23 Feb 2008 06:51:45 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750813AbYBWLvg (ORCPT ); Sat, 23 Feb 2008 06:51:36 -0500 Received: from rv-out-0910.google.com ([209.85.198.187]:46276 "EHLO rv-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750966AbYBWLvf (ORCPT ); Sat, 23 Feb 2008 06:51:35 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:sender:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references:x-google-sender-auth; b=HFoneDe6J6fmP3JUhRioi131Qhb8QkRQoQUQbKEt/bsvbzJtTsi827g6OXt1rLqg6SwDs6fy1LXQ23tidGxg4h9FfrH9/rf7yi7bxBLW8/8wthLByq8N+CWHALoMlwiGScF2ralP6eG+ZM5/MLUHrrQSTm8PX9BZIj+zHevE7es= Message-ID: <84144f020802230351o24b11282vbb1cecf518d91825@mail.gmail.com> Date: Sat, 23 Feb 2008 13:51:34 +0200 From: "Pekka Enberg" To: "Andrew Morton" Subject: Re: [PATCH] x86: add the debugfs interface for the sysprof tool Cc: "Arjan van de Ven" , linux-kernel@vger.kernel.org, mingo@elte.hu, sandmann@redhat.com, tglx@tglx.de, hpa@zytor.com In-Reply-To: <20080223001130.d8922136.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20080219123756.6261c13c@laptopd505.fenrus.org> <20080223001130.d8922136.akpm@linux-foundation.org> X-Google-Sender-Auth: 45b05e6646dc9ba1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 981 Lines: 21 On Sat, Feb 23, 2008 at 10:11 AM, Andrew Morton wrote: > Seems a poor idea to me. Sure, oprofile is "hard to set up", but not if > your distributor already did it for you. Have you tried sysprof? It's really nice to setup and use compared to oprofile when profiling user-space. On Sat, Feb 23, 2008 at 10:11 AM, Andrew Morton wrote: > This code adds a new kernel->userspace interface which is not even > documented in code comments. It appears to use a pollable debugfs file in > /proc somewhere, carrying an unspecified payload. Hmm, it does include but seems to set up a regular debugfs directory (usually mounted in /sys/debug) and not proc. Arjan? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/