tools/perf/scripts/python/sched-migration.py

Source file repositories/reference/linux-study-clean/tools/perf/scripts/python/sched-migration.py

File Facts

System
Linux kernel
Corpus path
tools/perf/scripts/python/sched-migration.py
Extension
.py
Size
12095 bytes
Lines
463
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

# Cpu task migration overview toy
#
# Copyright (C) 2010 Frederic Weisbecker <fweisbec@gmail.com>
#
# perf script event handlers have been generated by perf script -g python
#
# This software is distributed under the terms of the GNU General
# Public License ("GPL") version 2 as published by the Free Software
# Foundation.
from __future__ import print_function

import os
import sys

from collections import defaultdict
try:
	from UserList import UserList
except ImportError:
	# Python 3: UserList moved to the collections package
	from collections import UserList

sys.path.append(os.environ['PERF_EXEC_PATH'] + \
	'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
sys.path.append('scripts/python/Perf-Trace-Util/lib/Perf/Trace')

from perf_trace_context import *
from Core import *
from SchedGui import *


threads = { 0 : "idle"}

def thread_name(pid):
	return "%s:%d" % (threads[pid], pid)

class RunqueueEventUnknown:
	@staticmethod
	def color():
		return None

	def __repr__(self):
		return "unknown"

class RunqueueEventSleep:
	@staticmethod
	def color():
		return (0, 0, 0xff)

	def __init__(self, sleeper):
		self.sleeper = sleeper

	def __repr__(self):
		return "%s gone to sleep" % thread_name(self.sleeper)

class RunqueueEventWakeup:
	@staticmethod
	def color():
		return (0xff, 0xff, 0)

	def __init__(self, wakee):
		self.wakee = wakee

	def __repr__(self):
		return "%s woke up" % thread_name(self.wakee)

class RunqueueEventFork:
	@staticmethod
	def color():
		return (0, 0xff, 0)

Annotation

Implementation Notes