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
5 import argparse
6 import sys
7 import json
8
9 ap = argparse.ArgumentParser()
10 ap.add_argument('--no-args', action='store_true')
11 ap.add_argument('--interval', action='store_true')
12 ap.add_argument('--system-wide-no-aggr', action='store_true')
13 ap.add_argument('--system-wide', action='store_true')
14 ap.add_argument('--event', action='store_true')
15 ap.add_argument('--per-core', action='store_true')
16 ap.add_argument('--per-thread', action='store_true')
17 ap.add_argument('--per-cache', action='store_true')
18 ap.add_argument('--per-cluster', action='store_true')
19 ap.add_argument('--per-die', action='store_true')
20 ap.add_argument('--per-node', action='store_true')
21 ap.add_argument('--per-socket', action='store_true')
22 ap.add_argument('--file', type=argparse.FileType('r'), default=sys.stdin)
23 args = ap.parse_args()
24
25 Lines = args.file.readlines()
26
27 def isfloat(num):
28 try:
29 float(num)
30 return True
31 except ValueError:
32 return False
33
34
35 def isint(num):
36 try:
37 int(num)
38 return True
39 except ValueError:
40 return False
41
42 def is_counter_value(num):
43 return isfloat(num) or num == '<not counted>' or num == '<not supported>'
44
45 def check_json_output(expected_items):
46 checks = {
47 'aggregate-number': lambda x: isfloat(x),
48 'core': lambda x: True,
49 'counter-value': lambda x: is_counter_value(x),
50 'cgroup': lambda x: True,
51 'cpu': lambda x: isint(x),
52 'cache': lambda x: True,
53 'cluster': lambda x: True,
54 'die': lambda x: True,
55 'event': lambda x: True,
56 'event-runtime': lambda x: isfloat(x),
57 'interval': lambda x: isfloat(x),
58 'metric-unit': lambda x: True,
59 'metric-value': lambda x: isfloat(x),
60 'metricgroup': lambda x: True,
61 'node': lambda x: True,
62 'pcnt-running': lambda x: isfloat(x),
63 'socket': lambda x: True,
64 'thread': lambda x: True,
65 'unit': lambda x: True,
66 }
67 input = '[\n' + ','.join(Lines) + '\n]'
68 for item in json.loads(input):
69 if expected_items != -1:
70 count = len(item)
71 if count != expected_items and count >= 1 and count <= 6 and 'metric-value' in item:
72 # Events that generate >1 metric may have isolated metric
73 # values and possibly other prefixes like interval, core,
74 # aggregate-number, or event-runtime/pcnt-running from multiplexing.
75 pass
76 elif count != expected_items and count >= 1 and count <= 5 and 'metricgroup' in item:
77 pass
78 elif count != expected_items:
79 raise RuntimeError(f'wrong number of fields. counted {count} expected {expected_items}'
80 f' in \'{item}\'')
81 for key, value in item.items():
82 if key not in checks:
83 raise RuntimeError(f'Unexpected key: key={key} value={value}')
84 if not checks[key](value):
85 raise RuntimeError(f'Check failed for: key={key} value={value}')
86
87
88 try:
89 if args.no_args or args.system_wide or args.event:
90 expected_items = 7
91 elif args.interval or args.per_thread or args.system_wide_no_aggr:
92 expected_items = 8
93 elif args.per_core or args.per_socket or args.per_node or args.per_die or args.per_cluster or args.per_cache:
94 expected_items = 9
95 else:
96 # If no option is specified, don't check the number of items.
97 expected_items = -1
98 check_json_output(expected_items)
99 except:
100 print('Test failed for input:\n' + '\n'.join(Lines))
101 raise
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