tools/perf/tests/shell/lib/perf_json_output_lint.py

Source file repositories/reference/linux-study-clean/tools/perf/tests/shell/lib/perf_json_output_lint.py

File Facts

System
Linux kernel
Corpus path
tools/perf/tests/shell/lib/perf_json_output_lint.py
Extension
.py
Size
3994 bytes
Lines
115
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: tools
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

#!/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-cache', action='store_true')
ap.add_argument('--per-cluster', 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')
ap.add_argument('--metric-only', action='store_true')
ap.add_argument('--file', type=argparse.FileType('r'), default=sys.stdin)
args = ap.parse_args()

Lines = args.file.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 == '<not counted>' or num == '<not supported>'

def is_metric_value(num):
  return isfloat(num) or num == 'none'

def check_json_output(expected_items):
  checks = {
      'counters': 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),
      'cache': lambda x: True,
      'cluster': lambda x: True,
      '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: is_metric_value(x),
      'metric-threshold': lambda x: x in ['unknown', 'good', 'less good', 'nearly bad', 'bad'],
      'metricgroup': lambda x: True,
      'node': lambda x: True,
      'pcnt-running': lambda x: isfloat(x),
      'socket': lambda x: True,
      'thread': lambda x: True,
      'unit': lambda x: True,

Annotation

Implementation Notes