1#!/usr/bin/python 2# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) 3# Basic sanity check of perf JSON output as specified in the man page. 4 5import argparse 6import sys 7import json 8 9ap = argparse.ArgumentParser() 10ap.add_argument('--no-args', action='store_true') 11ap.add_argument('--interval', action='store_true') 12ap.add_argument('--system-wide-no-aggr', action='store_true') 13ap.add_argument('--system-wide', action='store_true') 14ap.add_argument('--event', action='store_true') 15ap.add_argument('--per-core', action='store_true') 16ap.add_argument('--per-thread', action='store_true') 17ap.add_argument('--per-cache', action='store_true') 18ap.add_argument('--per-cluster', action='store_true') 19ap.add_argument('--per-die', action='store_true') 20ap.add_argument('--per-node', action='store_true') 21ap.add_argument('--per-socket', action='store_true') 22ap.add_argument('--metric-only', action='store_true') 23ap.add_argument('--file', type=argparse.FileType('r'), default=sys.stdin) 24args = ap.parse_args() 25 26Lines = args.file.readlines() 27 28def isfloat(num): 29 try: 30 float(num) 31 return True 32 except ValueError: 33 return False 34 35 36def isint(num): 37 try: 38 int(num) 39 return True 40 except ValueError: 41 return False 42 43def is_counter_value(num): 44 return isfloat(num) or num == '<not counted>' or num == '<not supported>' 45 46def is_metric_value(num): 47 return isfloat(num) or num == 'none' 48 49def check_json_output(expected_items): 50 checks = { 51 'counters': lambda x: isfloat(x), 52 'core': lambda x: True, 53 'counter-value': lambda x: is_counter_value(x), 54 'cgroup': lambda x: True, 55 'cpu': lambda x: isint(x), 56 'cache': lambda x: True, 57 'cluster': lambda x: True, 58 'die': lambda x: True, 59 'event': lambda x: True, 60 'event-runtime': lambda x: isfloat(x), 61 'interval': lambda x: isfloat(x), 62 'metric-unit': lambda x: True, 63 'metric-value': lambda x: is_metric_value(x), 64 'metric-threshold': lambda x: x in ['unknown', 'good', 'less good', 'nearly bad', 'bad'], 65 'metricgroup': lambda x: True, 66 'node': lambda x: True, 67 'pcnt-running': lambda x: isfloat(x), 68 'socket': lambda x: True, 69 'thread': lambda x: True, 70 'unit': lambda x: True, 71 } 72 input = '[\n' + ','.join(Lines) + '\n]' 73 for item in json.loads(input): 74 if expected_items != -1: 75 count = len(item) 76 if count not in expected_items and count >= 1 and count <= 7 and 'metric-value' in item: 77 # Events that generate >1 metric may have isolated metric 78 # values and possibly other prefixes like interval, core, 79 # counters, or event-runtime/pcnt-running from multiplexing. 80 pass 81 elif count not in expected_items and count >= 1 and count <= 5 and 'metricgroup' in item: 82 pass 83 elif count - 1 in expected_items and 'metric-threshold' in item: 84 pass 85 elif count in expected_items and 'insn per cycle' in item: 86 pass 87 elif count not in expected_items: 88 raise RuntimeError(f'wrong number of fields. counted {count} expected {expected_items}' 89 f' in \'{item}\'') 90 for key, value in item.items(): 91 if key not in checks: 92 if args.metric_only: 93 continue 94 raise RuntimeError(f'Unexpected key: key={key} value={value}') 95 if not checks[key](value): 96 raise RuntimeError(f'Check failed for: key={key} value={value}') 97 98 99try: 100 if args.no_args or args.system_wide or args.event: 101 expected_items = [5, 7] 102 elif args.interval or args.per_thread or args.system_wide_no_aggr: 103 expected_items = [6, 8] 104 elif args.per_core or args.per_socket or args.per_node or args.per_die or args.per_cluster or args.per_cache: 105 expected_items = [7, 9] 106 elif args.metric_only: 107 expected_items = [1, 2] 108 else: 109 # If no option is specified, don't check the number of items. 110 expected_items = -1 111 check_json_output(expected_items) 112except: 113 print('Test failed for input:\n' + '\n'.join(Lines)) 114 raise 115