126 lines
4.3 KiB
Python
126 lines
4.3 KiB
Python
|
# stackcollapse.py - format perf samples with one line per distinct call stack
|
||
|
|
#
|
||
|
|
# This script's output has two space-separated fields. The first is a semicolon
|
||
|
|
# separated stack including the program name (from the "comm" field) and the
|
||
|
|
# function names from the call stack. The second is a count:
|
||
|
|
#
|
||
|
|
# swapper;start_kernel;rest_init;cpu_idle;default_idle;native_safe_halt 2
|
||
|
|
#
|
||
|
|
# The file is sorted according to the first field.
|
||
|
|
#
|
||
|
|
# Input may be created and processed using:
|
||
|
|
#
|
||
|
|
# perf record -a -g -F 99 sleep 60
|
||
|
|
# perf script report stackcollapse > out.stacks-folded
|
||
|
|
#
|
||
|
|
# (perf script record stackcollapse works too).
|
||
|
|
#
|
||
|
|
# Written by Paolo Bonzini <pbonzini@redhat.com>
|
||
|
|
# Based on Brendan Gregg's stackcollapse-perf.pl script.
|
||
|
|
|
||
|
|
import os
|
||
|
|
import sys
|
||
|
|
from collections import defaultdict
|
||
|
|
from optparse import OptionParser, make_option
|
||
|
|
|
||
|
|
sys.path.append(os.environ['PERF_EXEC_PATH'] + \
|
||
|
|
'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
|
||
|
|
|
||
|
|
from perf_trace_context import *
|
||
|
|
from Core import *
|
||
|
|
from EventClass import *
|
||
|
|
|
||
|
|
# command line parsing
|
||
|
|
|
||
|
|
option_list = [
|
||
|
|
# formatting options for the bottom entry of the stack
|
||
|
|
make_option("--include-tid", dest="include_tid",
|
||
|
|
action="store_true", default=False,
|
||
|
|
help="include thread id in stack"),
|
||
|
|
make_option("--include-pid", dest="include_pid",
|
||
|
|
action="store_true", default=False,
|
||
|
|
help="include process id in stack"),
|
||
|
|
make_option("--no-comm", dest="include_comm",
|
||
|
|
action="store_false", default=True,
|
||
|
|
help="do not separate stacks according to comm"),
|
||
|
|
make_option("--tidy-java", dest="tidy_java",
|
||
|
|
action="store_true", default=False,
|
||
|
|
help="beautify Java signatures"),
|
||
|
|
make_option("--kernel", dest="annotate_kernel",
|
||
|
|
action="store_true", default=False,
|
||
|
|
help="annotate kernel functions with _[k]")
|
||
|
|
]
|
||
|
|
|
||
|
|
parser = OptionParser(option_list=option_list)
|
||
|
|
(opts, args) = parser.parse_args()
|
||
|
|
|
||
|
|
if len(args) != 0:
|
||
|
|
parser.error("unexpected command line argument")
|
||
|
|
if opts.include_tid and not opts.include_comm:
|
||
|
|
parser.error("requesting tid but not comm is invalid")
|
||
|
|
if opts.include_pid and not opts.include_comm:
|
||
|
|
parser.error("requesting pid but not comm is invalid")
|
||
|
|
|
||
|
|
# event handlers
|
||
|
|
|
||
|
|
lines = defaultdict(lambda: 0)
|
||
|
|
|
||
|
|
def process_event(param_dict):
|
||
|
|
def tidy_function_name(sym, dso):
|
||
|
|
if sym is None:
|
||
|
|
sym = '[unknown]'
|
||
|
|
|
||
|
|
sym = sym.replace(';', ':')
|
||
|
|
if opts.tidy_java:
|
||
|
|
# the original stackcollapse-perf.pl script gives the
|
||
|
|
# example of converting this:
|
||
|
|
# Lorg/mozilla/javascript/MemberBox;.<init>(Ljava/lang/reflect/Method;)V
|
||
|
|
# to this:
|
||
|
|
# org/mozilla/javascript/MemberBox:.init
|
||
|
|
sym = sym.replace('<', '')
|
||
|
|
sym = sym.replace('>', '')
|
||
|
|
if sym[0] == 'L' and sym.find('/'):
|
||
|
|
sym = sym[1:]
|
||
|
|
try:
|
||
|
|
sym = sym[:sym.index('(')]
|
||
|
|
except ValueError:
|
||
|
|
pass
|
||
|
|
|
||
|
|
if opts.annotate_kernel and dso == '[kernel.kallsyms]':
|
||
|
|
return sym + '_[k]'
|
||
|
|
else:
|
||
|
|
return sym
|
||
|
|
|
||
|
|
stack = list()
|
||
|
|
if 'callchain' in param_dict:
|
||
|
|
for entry in param_dict['callchain']:
|
||
|
|
entry.setdefault('sym', dict())
|
||
|
|
entry['sym'].setdefault('name', None)
|
||
|
|
entry.setdefault('dso', None)
|
||
|
|
stack.append(tidy_function_name(entry['sym']['name'],
|
||
|
|
entry['dso']))
|
||
|
|
else:
|
||
|
|
param_dict.setdefault('symbol', None)
|
||
|
|
param_dict.setdefault('dso', None)
|
||
|
|
stack.append(tidy_function_name(param_dict['symbol'],
|
||
|
|
param_dict['dso']))
|
||
|
|
|
||
|
|
if opts.include_comm:
|
||
|
|
comm = param_dict["comm"].replace(' ', '_')
|
||
|
|
sep = "-"
|
||
|
|
if opts.include_pid:
|
||
|
|
comm = comm + sep + str(param_dict['sample']['pid'])
|
||
|
|
sep = "/"
|
||
|
|
if opts.include_tid:
|
||
|
|
comm = comm + sep + str(param_dict['sample']['tid'])
|
||
|
|
stack.append(comm)
|
||
|
|
|
||
|
|
stack_string = ';'.join(reversed(stack))
|
||
|
|
lines[stack_string] = lines[stack_string] + 1
|
||
|
|
|
||
|
|
def trace_end():
|
||
|
|
list = lines.keys()
|
||
|
|
list.sort()
|
||
|
|
for stack in list:
|
||
|
|
print "%s %d" % (stack, lines[stack])
|