From patchwork Wed Mar 2 19:01:25 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: 12766583 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 0015DC433F5 for ; Wed, 2 Mar 2022 19:02:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244795AbiCBTC6 convert rfc822-to-8bit (ORCPT ); Wed, 2 Mar 2022 14:02:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32884 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244785AbiCBTC4 (ORCPT ); Wed, 2 Mar 2022 14:02:56 -0500 Received: from us-smtp-delivery-44.mimecast.com (us-smtp-delivery-44.mimecast.com [205.139.111.44]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id A5C8E45041 for ; Wed, 2 Mar 2022 11:02:12 -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-252-PLIH9pRyO2SBN5CvXSprTQ-1; Wed, 02 Mar 2022 14:02:07 -0500 X-MC-Unique: PLIH9pRyO2SBN5CvXSprTQ-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A3ED11091DA1; Wed, 2 Mar 2022 19:02:06 +0000 (UTC) Received: from x1.com (unknown [10.22.32.168]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3144F19C59; Wed, 2 Mar 2022 19:01:43 +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 V3 00/15] rtla: Improved tracing support Date: Wed, 2 Mar 2022 20:01:25 +0100 Message-Id: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 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. And some more improvements: - Add --dma-latency option to tune exit from idle latencies - Some minor fixes Changes from V2: - Rebased to for-next - Add --dma-latency - Some more fixes 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 (15): 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 rtla: Check for trace off also in the trace instance rtla/osnoise: Fix osnoise hist stop tracing message rtla/timerlat: Add --dma-latency option rtla: Tools main loop cleanup Documentation/tools/rtla/common_options.rst | 19 + .../tools/rtla/common_osnoise_options.rst | 10 + .../tools/rtla/common_timerlat_options.rst | 12 + tools/tracing/rtla/src/osnoise.c | 83 +++++ tools/tracing/rtla/src/osnoise.h | 8 + tools/tracing/rtla/src/osnoise_hist.c | 95 ++++- tools/tracing/rtla/src/osnoise_top.c | 91 ++++- tools/tracing/rtla/src/timerlat_hist.c | 108 +++++- tools/tracing/rtla/src/timerlat_top.c | 103 +++++- tools/tracing/rtla/src/trace.c | 345 ++++++++++++++++++ tools/tracing/rtla/src/trace.h | 23 ++ tools/tracing/rtla/src/utils.c | 33 ++ tools/tracing/rtla/src/utils.h | 1 + 13 files changed, 903 insertions(+), 28 deletions(-) Tested-by: Juri Lelli