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 7D66CC433F5 for ; Tue, 17 May 2022 21:59:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229930AbiEQV7r (ORCPT ); Tue, 17 May 2022 17:59:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45728 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229851AbiEQV7a (ORCPT ); Tue, 17 May 2022 17:59:30 -0400 Received: from mail-yw1-x114a.google.com (mail-yw1-x114a.google.com [IPv6:2607:f8b0:4864:20::114a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9944351580 for ; Tue, 17 May 2022 14:59:28 -0700 (PDT) Received: by mail-yw1-x114a.google.com with SMTP id 00721157ae682-2fecc57ec14so4258417b3.11 for ; Tue, 17 May 2022 14:59:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=bHIfvp4h5+ssKuj8eNqRd5kt2hjUb/pDEBzybkniKr0=; b=Xr6OSICeeW3nG+Y6QMPT7KOMogW9es5BLqnQs017TEHoLAU0f67AFrjOhcZ+Iosxgx TIxeNDdvIyhcNB0W6vy1dnfQC7Wozuglb3StACTeorBLL3SQxGcljpMA74L0LgqNZStE ubB1I0A27dMDisMm4HlP7sAXuicN7EUq2w3PHhAZ76IrA3hhkpybDL/LOsSo9wlpb6+j qze9bol4YVEoHT2idSbfQmkEI+hTLAvvq5h+6ZgDwCnWrZHsbDCGZBAkTpQoSE15BEVX iS3yUr1Q8LbBtDDnESCeuwoqodbSR0zEn/ZITEuTF/25UatsyyBE4UdpE1LYPmCYy15I 2WJQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=bHIfvp4h5+ssKuj8eNqRd5kt2hjUb/pDEBzybkniKr0=; b=wNpzM3htFLsmSDn4Rld4armWt0K3ZIP1ZnCj7YMdEtdxFqnmRjsMJrCXqDjfMpfNRM sX79vAI0r3JOrH2q/pQNvRFyCznQAUwms6NDirTuVSkBq1+hEBuAWzpJCdcTYTWB7vtr 6jkW+OjA9BKcf/HW7rjyHvg6kEEleeq8YtIrXqtQKIJZnLWHlg3TmC7pE/AFv2ybSJ7u q3BlS0Bm7xIw3QYySZnQWAt6gTUbA9E5NaLfLieDK/WmTg1h0fQHC3FCobZmo6FSjciG B4fi5Wg3l2Q/ETpte+th5NWhs2nb9Zj5QF/Ys3P9v8RckbNJCWFtLonCDgRi96UtqQEV P1oA== X-Gm-Message-State: AOAM533P+4xknVawIy6RxQvFDKW0487SpvcpYePYQ+S3uqIx7tZ9W1AH nhrd4FxlBYUBEdh6gGqFh4JxNSXQZPLh X-Google-Smtp-Source: ABdhPJw3JcqolGpOdZgevIZVMTmUfmg4eTYIvxXlWvKMxmhlJTlifkppTSD2lsZQjr/E4mc3ncVBvk64P0hR X-Received: from irogers.svl.corp.google.com ([2620:15c:2cd:202:a5a1:af73:fe09:fd5]) (user=irogers job=sendgmr) by 2002:a5b:2c5:0:b0:64b:1219:9156 with SMTP id h5-20020a5b02c5000000b0064b12199156mr24485524ybp.115.1652824767738; Tue, 17 May 2022 14:59:27 -0700 (PDT) Date: Tue, 17 May 2022 14:59:17 -0700 In-Reply-To: <20220517215917.692906-1-irogers@google.com> Message-Id: <20220517215917.692906-4-irogers@google.com> Mime-Version: 1.0 References: <20220517215917.692906-1-irogers@google.com> X-Mailer: git-send-email 2.36.0.550.gb090851708-goog Subject: [PATCH v3 3/3] perf test: Json format checking From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Kan Liang , Zhengjun Xing , Sandipan Das , Claire Jensen , Alyssa Ross , Like Xu , James Clark , Florian Fischer , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Claire Jensen Cc: Stephane Eranian , Ian Rogers Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Claire Jensen Add field checking tests for perf stat JSON output. Sanity checks the expected number of fields are present, that the expected keys are present and they have the correct values. Signed-off-by: Claire Jensen Signed-off-by: Ian Rogers --- .../tests/shell/lib/perf_json_output_lint.py | 91 +++++++++++ tools/perf/tests/shell/stat+json_output.sh | 147 ++++++++++++++++++ 2 files changed, 238 insertions(+) create mode 100644 tools/perf/tests/shell/lib/perf_json_output_lint.py create mode 100755 tools/perf/tests/shell/stat+json_output.sh diff --git a/tools/perf/tests/shell/lib/perf_json_output_lint.py b/tools/perf/tests/shell/lib/perf_json_output_lint.py new file mode 100644 index 000000000000..c3ed2624f8f5 --- /dev/null +++ b/tools/perf/tests/shell/lib/perf_json_output_lint.py @@ -0,0 +1,91 @@ +#!/usr/bin/python +# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) +# Basic sanity check of perf JSON output as specified in the man page. + +import argparse +import sys +import json + +ap = argparse.ArgumentParser() +ap.add_argument('--no-args', action='store_true') +ap.add_argument('--interval', action='store_true') +ap.add_argument('--system-wide-no-aggr', action='store_true') +ap.add_argument('--system-wide', action='store_true') +ap.add_argument('--event', action='store_true') +ap.add_argument('--per-core', action='store_true') +ap.add_argument('--per-thread', action='store_true') +ap.add_argument('--per-die', action='store_true') +ap.add_argument('--per-node', action='store_true') +ap.add_argument('--per-socket', action='store_true') +args = ap.parse_args() + +Lines = sys.stdin.readlines() + +def isfloat(num): + try: + float(num) + return True + except ValueError: + return False + + +def isint(num): + try: + int(num) + return True + except ValueError: + return False + +def is_counter_value(num): + return isfloat(num) or num == '' or num == '' + +def check_json_output(expected_items): + if expected_items != -1: + for line in Lines: + if 'failed' not in line: + count = 0 + count = line.count(',') + if count != expected_items: + raise RuntimeError('wrong number of fields. counted {0}' + ' expected {1} in {2}\n'.format(count, exp, line)) + checks = { + 'aggregate-number': lambda x: isfloat(x), + 'core': lambda x: True, + 'counter-value': lambda x: is_counter_value(x), + 'cgroup': lambda x: True, + 'cpu': lambda x: isint(x), + 'die': lambda x: True, + 'event': lambda x: True, + 'event-runtime': lambda x: isfloat(x), + 'interval': lambda x: isfloat(x), + 'metric-unit': lambda x: True, + 'metric-value': lambda x: isfloat(x), + 'node': lambda x: True, + 'pcnt-running': lambda x: isfloat(x), + 'socket': lambda x: True, + 'thread': lambda x: True, + 'unit': lambda x: True, + } + input = '[\n' + ','.join(Lines) + '\n]' + for item in json.loads(input): + for key, value in item.items(): + if key not in checks: + raise RuntimeError(f'Unexpected key: key={key} value={value}') + if not checks[key](value): + raise RuntimeError(f'Check failed for: key={key} value={value}') + + +try: + if args.no_args or args.system_wide or args.event: + expected_items = 6 + elif args.interval or args.per_thread or args.system_wide_no_aggr: + expected_items = 7 + elif args.per_core or args.per_socket or args.per_node or args.per_die: + expected_items = 8 + else: + # If no option is specified, don't check the number of items. + expected_items = -1 + check_json_output(expected_items) +except: + print('Test failed for input:\n' + '\n'.join(Lines)) + raise diff --git a/tools/perf/tests/shell/stat+json_output.sh b/tools/perf/tests/shell/stat+json_output.sh new file mode 100755 index 000000000000..7748b677f2f9 --- /dev/null +++ b/tools/perf/tests/shell/stat+json_output.sh @@ -0,0 +1,147 @@ +#!/bin/bash +# perf stat JSON output linter +# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) +# Checks various perf stat JSON output commands for the +# correct number of fields. + +set -e + +pythonchecker=$(dirname $0)/lib/perf_json_output_lint.py +if [ "x$PYTHON" == "x" ] +then + if which python3 > /dev/null + then + PYTHON=python3 + elif which python > /dev/null + then + PYTHON=python + else + echo Skipping test, python not detected please set environment variable PYTHON. + exit 2 + fi +fi + +# Return true if perf_event_paranoid is > $1 and not running as root. +function ParanoidAndNotRoot() +{ + [ $(id -u) != 0 ] && [ $(cat /proc/sys/kernel/perf_event_paranoid) -gt $1 ] +} + +check_no_args() +{ + echo -n "Checking json output: no args " + perf stat -j true 2>&1 | $PYTHON $pythonchecker --no-args + echo "[Success]" +} + +check_system_wide() +{ + echo -n "Checking json output: system wide " + if ParanoidAndNotRoot 0 + then + echo "[Skip] parnoia and not root" + return + fi + perf stat -j -a true 2>&1 | $PYTHON $pythonchecker --system-wide + echo "[Success]" +} + +check_system_wide_no_aggr() +{ + echo -n "Checking json output: system wide " + if ParanoidAndNotRoot 0 + then + echo "[Skip] parnoia and not root" + return + fi + echo -n "Checking json output: system wide no aggregation " + perf stat -j -A -a --no-merge true 2>&1 | $PYTHON $pythonchecker --system-wide-no-aggr + echo "[Success]" +} + +check_interval() +{ + echo -n "Checking json output: interval " + perf stat -j -I 1000 true 2>&1 | $PYTHON $pythonchecker --interval + echo "[Success]" +} + + +check_event() +{ + echo -n "Checking json output: event " + perf stat -j -e cpu-clock true 2>&1 | $PYTHON $pythonchecker --event + echo "[Success]" +} + +check_per_core() +{ + echo -n "Checking json output: per core " + if ParanoidAndNotRoot 0 + then + echo "[Skip] parnoia and not root" + return + fi + perf stat -j --per-core -a true 2>&1 | $PYTHON $pythonchecker --per-core + echo "[Success]" +} + +check_per_thread() +{ + echo -n "Checking json output: per thread " + if ParanoidAndNotRoot 0 + then + echo "[Skip] parnoia and not root" + return + fi + perf stat -j --per-thread -a true 2>&1 | $PYTHON $pythonchecker --per-thread + echo "[Success]" +} + +check_per_die() +{ + echo -n "Checking json output: per die " + if ParanoidAndNotRoot 0 + then + echo "[Skip] parnoia and not root" + return + fi + perf stat -j --per-die -a true 2>&1 | $PYTHON $pythonchecker --per-die + echo "[Success]" +} + +check_per_node() +{ + echo -n "Checking json output: per node " + if ParanoidAndNotRoot 0 + then + echo "[Skip] parnoia and not root" + return + fi + perf stat -j --per-node -a true 2>&1 | $PYTHON $pythonchecker --per-node + echo "[Success]" +} + +check_per_socket() +{ + echo -n "Checking json output: per socket " + if ParanoidAndNotRoot 0 + then + echo "[Skip] parnoia and not root" + return + fi + perf stat -j --per-socket -a true 2>&1 | $PYTHON $pythonchecker --per-socket + echo "[Success]" +} + +check_no_args +check_system_wide +check_system_wide_no_aggr +check_interval +check_event +check_per_core +check_per_thread +check_per_die +check_per_node +check_per_socket +exit 0 -- 2.36.0.550.gb090851708-goog