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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C4817C433F5 for ; Thu, 14 Apr 2022 09:48:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236727AbiDNJuZ (ORCPT ); Thu, 14 Apr 2022 05:50:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46476 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229803AbiDNJuV (ORCPT ); Thu, 14 Apr 2022 05:50:21 -0400 Received: from www62.your-server.de (www62.your-server.de [213.133.104.62]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8F5BB6393; Thu, 14 Apr 2022 02:47:56 -0700 (PDT) Received: from sslproxy02.your-server.de ([78.47.166.47]) by www62.your-server.de with esmtpsa (TLSv1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.92.3) (envelope-from ) id 1new4o-0005MU-Dc; Thu, 14 Apr 2022 11:47:46 +0200 Received: from [85.1.206.226] (helo=linux.home) by sslproxy02.your-server.de with esmtpsa (TLSv1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1new4o-000Xad-41; Thu, 14 Apr 2022 11:47:46 +0200 Subject: Re: [RFC PATCH 0/1] sample: bpf: introduce irqlat To: Song Chen , ast@kernel.org, andrii@kernel.org, kafai@fb.com, songliubraving@fb.com, yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org, linux-kernel@vger.kernel.org References: <1649927240-18991-1-git-send-email-chensong_2000@189.cn> From: Daniel Borkmann Message-ID: <2e6ee265-903c-2b5c-aefd-ec24f930c999@iogearbox.net> Date: Thu, 14 Apr 2022 11:47:45 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 In-Reply-To: <1649927240-18991-1-git-send-email-chensong_2000@189.cn> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Authenticated-Sender: daniel@iogearbox.net X-Virus-Scanned: Clear (ClamAV 0.103.5/26512/Thu Apr 14 10:28:56 2022) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 4/14/22 11:07 AM, Song Chen wrote: > I'm planning to implement a couple of ebpf tools for preempt rt, > including irq latency, preempt latency and so on, how does it sound > to you? Sounds great, thanks! Please add these tools for upstream inclusion either to bpftrace [0] or bcc [1], then a wider range of users would be able to benefit from them as well as they are also shipped as distro packages and generally more widely used compared to kernel samples. Thanks Song! [0] https://github.com/iovisor/bpftrace/tree/master/tools [1] https://github.com/iovisor/bcc/tree/master/libbpf-tools > Song Chen (1): > sample: bpf: introduce irqlat > > samples/bpf/.gitignore | 1 + > samples/bpf/Makefile | 5 ++ > samples/bpf/irqlat_kern.c | 81 ++++++++++++++++++++++++++++++ > samples/bpf/irqlat_user.c | 100 ++++++++++++++++++++++++++++++++++++++ > 4 files changed, 187 insertions(+) > create mode 100644 samples/bpf/irqlat_kern.c > create mode 100644 samples/bpf/irqlat_user.c >