From patchwork Mon Feb 21 22:16:45 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Bristot de Oliveira X-Patchwork-Id: 12754202 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 9E555C433F5 for ; Mon, 21 Feb 2022 22:17:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235290AbiBUWRk convert rfc822-to-8bit (ORCPT ); Mon, 21 Feb 2022 17:17:40 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:39370 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233701AbiBUWRj (ORCPT ); Mon, 21 Feb 2022 17:17:39 -0500 Received: from us-smtp-delivery-44.mimecast.com (us-smtp-delivery-44.mimecast.com [207.211.30.44]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id BCF1922BE8 for ; Mon, 21 Feb 2022 14:17:13 -0800 (PST) Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-375-cZWv-X8dPMKKcsDI4bGfIw-1; Mon, 21 Feb 2022 17:17:09 -0500 X-MC-Unique: cZWv-X8dPMKKcsDI4bGfIw-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 561D01091DA1; Mon, 21 Feb 2022 22:17:08 +0000 (UTC) Received: from x1.com (unknown [10.22.16.159]) by smtp.corp.redhat.com (Postfix) with ESMTP id 75C7A5DB96; Mon, 21 Feb 2022 22:17:03 +0000 (UTC) From: Daniel Bristot de Oliveira To: Steven Rostedt Cc: Daniel Bristot de Oliveira , Jonathan Corbet , Clark Williams , Juri Lelli , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-devel@vger.kernel.org Subject: [PATCH V2 00/11] rtla: Improved tracing support Date: Mon, 21 Feb 2022 23:16:45 +0100 Message-Id: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=bristot@kernel.org X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org This set introduces some tracing facilities to rtla tools: - Add the possibility to change the tracing_thresh to osnoise, allowing a fine tune of OS noise detection. - Add the auto-tracing feature (-a threshold us), which aims helping the first approach to a problem by setting common tracing features with a single parameter. - Add -e/--event option, allowing osnoise and timerlat to enable additional trace events via (possible multiple) -e sys:event options. - Add the --filter option to filter the previous -e event. - Add the --trigger option to allow the usage of tracing trigger of the previously set -e event. If the trigger is hist: one, rtla automatically saves the hist file associated with the -e event. Depends on "rtla: Some RTLA fixes for 5.17": https://lore.kernel.org/lkml/cover.1645206561.git.bristot@kernel.org/ Changes from V1: - Add -e to osnoise/timerlat hist - Add --trigger - Add --filter - Add support to save hist file - Function name refactoring Daniel Bristot de Oliveira (11): rtla/osnoise: Add support to adjust the tracing_thresh rtla/osnoise: Add an option to set the threshold rtla/osnoise: Add the automatic trace option rtla/timerlat: Add the automatic trace option rtla/trace: Add trace events helpers rtla: Add -e/--event support rtla/trace: Add trace event trigger helpers rtla: Add --trigger support rtla/trace: Add trace event filter helpers rtla: Add --filter support rtla/trace: Save event histogram output to a file Documentation/tools/rtla/common_options.rst | 19 + .../tools/rtla/common_osnoise_options.rst | 10 + .../tools/rtla/common_timerlat_options.rst | 7 + tools/tracing/rtla/src/osnoise.c | 83 +++++ tools/tracing/rtla/src/osnoise.h | 8 + tools/tracing/rtla/src/osnoise_hist.c | 87 ++++- tools/tracing/rtla/src/osnoise_top.c | 83 ++++- tools/tracing/rtla/src/timerlat_hist.c | 78 ++++- tools/tracing/rtla/src/timerlat_top.c | 73 +++- tools/tracing/rtla/src/trace.c | 326 ++++++++++++++++++ tools/tracing/rtla/src/trace.h | 22 ++ 11 files changed, 782 insertions(+), 14 deletions(-)