# stackcollapse.py - format perf samples with one line per distinct call stack # SPDX-License-Identifier: GPL-2.0 # # 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 # Based on Brendan Gregg's stackcollapse-perf.pl script. from __future__ import print_function 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;.(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 = sorted(lines) for stack in list: print("%s %d" % (stack, lines[stack])) n value='linux-4.6.y'>linux-4.6.y Hosts the 0x221E linux distro kernel.Ubuntu
summaryrefslogtreecommitdiff
d) e (Expand) 826021ca46077cb33b5ef64'>media: i2c: st-mipid02: remove parallel mbus format on sink pad
AgeCommit message (Expand)Author
Author
Author
2024-02-08spi: bitbang: Follow renaming of SPI "master" to "controller"Uwe Kleine-König
2023-09-11spi: oc-tiny: switch to use modern nameYang Yingliang
2023-03-06spi: oc-tiny: Convert to platform remove callback returning voidUwe Kleine-König
Alain Volmat
2024-11-07media: i2c: st-mipid02: add pm_runtime handlingAlain Volmat
2024-11-07media: i2c: st-mipid02: use enable/disable_streams pad opsAlain Volmat
2024-11-07media: i2c: st-mipid02: fix mipid02_stream_enable error handlingAlain Volmat
2024-05-03media: i2c: st-mipid02: Use the correct div functionRicardo Ribalda
2023-12-04media: i2c: st-mipid02: add Y8 format supportAlain Volmat
2023-12-04media: i2c: st-mipid02: removal of unused link_frequency variableAlain Volmat
2023-12-04media: i2c: st-mipid02: use mipi-csi macro for data-typeAlain Volmat
2023-12-04media: i2c: st-mipid02: use active state to store pad formatsAlain Volmat
2023-12-04media: i2c: st-mipid02: use cci_* helpers for register access.Alain Volmat
2023-12-04media: i2c: st-mipid02: don't keep track of streaming statusAlain Volmat
2023-12-04media: i2c: st-mipid02: add usage of v4l2_get_link_freqAlain Volmat
2023-12-04media: i2c: st-mipid02: correct format propagationAlain Volmat
2023-11-23media: v4l: subdev: Switch to stream-aware state functionsSakari Ailus
2023-08-10media: i2c: st_mipid02: cascade s_stream call to the source subdevAlain Volmat
2023-08-10media: v4l: async: Set v4l2_device and subdev in async notifier initSakari Ailus
2023-07-28media: v4l: async: Rename v4l2_async_subdev as v4l2_async_connectionSakari Ailus