# 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. 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 = lines.keys() list.sort() for stack in list: print "%s %d" % (stack, lines[stack]) Hosts the 0x221E linux distro kernel.Ubuntu
summaryrefslogtreecommitdiff
path: root/tools/hv
AgeCommit message (Expand)Author
2018-11-11Tools: hv: kvp: Fix a warning of buffer overflow with gcc 8.0.1Dexuan Cui
2018-09-30tools: hv: fcopy: set 'error' in case an unknown operation was requestedVitaly Kuznetsov
2018-09-12Tools: hv: Fix a bug in the key delete codeK. Y. Srinivasan
2018-07-03Tools: hv: vss: fix loop device detectionVitaly Kuznetsov
2018-07-03tools: hv: update lsvmbus to be compatible with python3Olaf Hering
2018-03-06tools: hv: include string.h in hv_fcopy_daemonOlaf Hering
2018-03-06tools: hv: fix compiler warnings about major/target_fnameDexuan Cui
2018-03-06tools/hv: Fix IP reporting by KVP daemon with SRIOVHaiyang Zhang
2018-02-21tools: fix cross-compile var clobberingMartin Kelly
2017-12-11Merge 4.15-rc3 into char-misc-nextGreg Kroah-Hartman
2017-11-28hv: kvp: Avoid reading past allocated blocks from KVP filePaul Meyer
2017-11-28tools/hv: add install target to MakefileVitaly Kuznetsov
2017-11-02License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman
2017-09-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds
2017-08-16Tools: hv: update buffer handling in hv_fcopy_daemonOlaf Hering
2017-08-16Tools: hv: fix snprintf warning in kvp_daemonOlaf Hering
2017-08-16Tools: hv: vss: Skip freezing filesystems backed by loopAlex Ng
2017-08-02netvsc: remove bonding setup scriptstephen hemminger
2017-07-16tools: hv: ignore a NIC if it has been configuredsixiao@microsoft.com
2017-07-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds
2017-06-02tools: hv: set hotplug for VF on Susesixiao@microsoft.com
2017-06-02tools: hv: set allow-hotplug for VF on Ubuntusixiao@microsoft.com
2017-05-18tools: hv: properly handle long pathsVitaly Kuznetsov
2017-05-18Tools: hv: vss: Thaw the filesystem and continue if freeze call has timed outAlex Ng
2017-05-16tools: hv: Add clean up for included files in Ubuntu net configHaiyang Zhang
2017-03-06tools: hv: Add clean up function for Ubuntu configHaiyang Zhang
2016-12-13Merge tag 'char-misc-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/g...Linus Torvalds
2016-12-06tools: hv: Enable network manager for bonding scripts on RHELHaiyang Zhang
2016-12-06Tools: hv: kvp: configurable external scripts pathAlex Fluter
2016-11-07tools: hv: remove unnecessary header files and netlink related codeWeibing Zhang
2016-11-07tools: hv: fix a compile warning in snprintfWeibing Zhang
2016-11-07tools: hv: remove unnecessary link flagWeibing Zhang
2016-09-02Drivers: hv: utils: Check VSS daemon is listening before a hot backupAlex Ng
2016-08-31Tools: hv: kvp: ensure kvp device fd is closed on execVitaly Kuznetsov
2016-07-12tools: hv: Add a script to help bonding synthetic and VF NICsHaiyang Zhang