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=-2.1 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 8CB5DC4BA24 for ; Wed, 26 Feb 2020 19:14:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5D3AE20656 for ; Wed, 26 Feb 2020 19:14:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="d5Ivp/Me" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727229AbgBZTO0 (ORCPT ); Wed, 26 Feb 2020 14:14:26 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:46056 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727091AbgBZTOZ (ORCPT ); Wed, 26 Feb 2020 14:14:25 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=tKhMa5Sd27YXJPXDMYEL6vfvj6URvuGiqyYEnIj8ZSQ=; b=d5Ivp/MeR6FmmmzcmnsEZlJtvo Of99Za5ppM/mNfTTUgq+2JPcmxo9ZRLCoXJ9CMrotPzqhJZbK3RPEK1Fpzthc6HMweW0clIZKgok7 3GE+FztDwZqH0WZPK4FBDu4KEyqont3D87Esr/LKefZox06SIyHat3uJ4CSC4KRgcSUIMLwH5t8nd NQRKX1YHryjnldNC9+WahQzkMN6+aJT/6HOyk0BzQDjfKhk+xohB9L2xXIhYZxlsJWBpTTl/MSeui 9DHWLfDRsfWXdvTo0PmfDt6tX6AoDHm3fJ2axHoe/lqUoruwCfesCCyWEBIjhIZosAko+QL+CdJ0U +fy+VHpA==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1j728F-0007qG-FI; Wed, 26 Feb 2020 19:14:07 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 6C9E0306056; Wed, 26 Feb 2020 20:12:09 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id C17412B740B97; Wed, 26 Feb 2020 20:14:04 +0100 (CET) Date: Wed, 26 Feb 2020 20:14:04 +0100 From: Peter Zijlstra To: Luigi Rizzo Cc: Toke =?iso-8859-1?Q?H=F8iland-J=F8rgensen?= , linux-kernel@vger.kernel.org, Masami Hiramatsu , Andrew Morton , Greg KH , naveen.n.rao@linux.ibm.com, ardb@kernel.org, Luigi Rizzo , Paolo Abeni , giuseppe.lettieri@unipi.it, Jesper Dangaard Brouer , mingo@redhat.com, acme@kernel.org, Steven Rostedt Subject: Re: [PATCH v3 0/2] kstats: kernel metric collector Message-ID: <20200226191404.GD18400@hirez.programming.kicks-ass.net> References: <20200226135027.34538-1-lrizzo@google.com> <87ftexz93y.fsf@toke.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Feb 26, 2020 at 09:26:22AM -0800, Luigi Rizzo wrote: > [this reply also addresses comments from Alexei and Peter] I don't see where you address my comment; all you talk about is bpf. I've never used bpf. Still I also don't see any actual value in you few lines of code.