Jiri Olsa 9881d7df9d perf python: Add tracepoint example ...

To show how to enable a tracepoint and access its fields.

Committer note:

Testing it:

  # ls -l /tmp/build/perf/python/perf.so
  -rwxrwxr-x. 1 acme acme 1563256 Jul 12 16:19 /tmp/build/perf/python/perf.so
  # export PYTHONPATH=/tmp/build/perf/python/
  # tools/perf/python/tracepoint.py 2> /dev/null | head -200 | tail -10
  time 76345337296548 prev_comm=swapper/0 prev_pid=0 prev_prio=120 prev_state=0x0 ==> next_comm=tracepoint.py- next_pid=18479 next_prio=120
  time 76345338520479 prev_comm=gnome-shelln-b prev_pid=2186 prev_prio=120 prev_state=0x1 ==> next_comm=swapper/1 next_pid=0 next_prio=120
  time 76345337309942 prev_comm=tracepoint.py- prev_pid=18479 prev_prio=120 prev_state=0x1 ==> next_comm=swapper/0 next_pid=0 next_prio=120
  time 76345337312302 prev_comm=swapper/0 prev_pid=0 prev_prio=120 prev_state=0x0 ==> next_comm=tracepoint.py- next_pid=18479 next_prio=120
  time 76345337324927 prev_comm=tracepoint.py- prev_pid=18479 prev_prio=120 prev_state=0x1 ==> next_comm=swapper/0 next_pid=0 next_prio=120
  time 76345337327115 prev_comm=swapper/0 prev_pid=0 prev_prio=120 prev_state=0x0 ==> next_comm=tracepoint.py- next_pid=18479 next_prio=120
  time 76345338621750 prev_comm=swapper/2 prev_pid=0 prev_prio=120 prev_state=0x0 ==> next_comm=rcuos/2 next_pid=29 next_prio=120
  time 76345338607922 prev_comm=swapper/3 prev_pid=0 prev_prio=120 prev_state=0x0 ==> next_comm=rcu_sched next_pid=7 next_prio=120
  time 76345337338817 prev_comm=tracepoint.py- prev_pid=18479 prev_prio=120 prev_state=0x1 ==> next_comm=swapper/0 next_pid=0 next_prio=120
  time 76345338627156 prev_comm=swapper/1 prev_pid=0 prev_prio=120 prev_state=0x0 ==> next_comm=head-terminal- next_pid=18480 next_prio=120
  #
  # strip /tmp/build/perf/python/perf.so
  # ls -l /tmp/build/perf/python/perf.so
  -rwxrwxr-x. 1 acme acme 319616 Jul 12 16:25 /tmp/build/perf/python/perf.so

Reported-and-Tested-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1468148882-10362-10-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2016-07-12 16:23:35 -03:00

..

arch

perf tools: Remove needless includes from cache.h

2016-07-12 15:19:58 -03:00

bench

perf bench: Copy kernel files needed to build mem{cpy,set} x86_64 benchmarks

2016-07-12 15:20:32 -03:00

config

perf tools: Add feature detection for gelf_getnote()

2016-07-12 15:20:41 -03:00

Documentation

perf report: Introduce --stdio-color to setup the color output mode selection

2016-07-12 00:00:39 -03:00

jvmti

perf jit: Add support for using TSC as a timestamp

2016-04-01 18:42:55 -03:00

python

perf python: Add tracepoint example

2016-07-12 16:23:35 -03:00

scripts

perf script stackcollapse: Remove reference to the perl interpreter

2016-06-22 09:56:34 -03:00

tests

perf test bpf: Use epoll_wait() instead of epoll_pwait()

2016-07-12 15:20:33 -03:00

trace

perf trace beauty seccomp: Remove seccomp.h include

2016-07-12 15:20:38 -03:00

ui

perf tools: Remove needless includes from cache.h

2016-07-12 15:19:58 -03:00

util

perf python: Add support to resolve tracepoint fields

2016-07-12 16:19:16 -03:00

.gitignore

perf tools: Add arch/*/include/generated/ to .gitignore

2016-05-30 12:41:46 -03:00

Build

perf tools: Set and pass DOCDIR to builtin-report.c

2016-01-12 12:42:07 -03:00

builtin-annotate.c

perf annotate: Introduce --stdio-color to setup the color output mode selection

2016-07-12 00:00:39 -03:00

builtin-bench.c

perf subcmd: Create subcmd library

2015-12-17 14:27:14 -03:00

builtin-buildid-cache.c

tools: Introduce str_error_r()

2016-07-12 15:19:47 -03:00

builtin-buildid-list.c

perf subcmd: Create subcmd library

2015-12-17 14:27:14 -03:00

builtin-config.c

perf config: Reimplement show_config() using config_set__for_each

2016-06-23 17:23:00 -03:00

builtin-data.c

perf data ctf: Add '--all' option for 'perf data convert'

2016-06-28 10:54:57 -03:00

builtin-diff.c

perf evlist: Rename for_each() macros to for_each_entry()

2016-06-23 11:26:15 -03:00

builtin-evlist.c

perf evlist: Rename for_each() macros to for_each_entry()

2016-06-23 11:26:15 -03:00

builtin-help.c

tools: Introduce str_error_r()

2016-07-12 15:19:47 -03:00

builtin-inject.c

perf evlist: Rename for_each() macros to for_each_entry()

2016-06-23 11:26:15 -03:00

builtin-kmem.c

perf evlist: Rename for_each() macros to for_each_entry()

2016-06-23 11:26:15 -03:00

builtin-kvm.c

tools: Introduce str_error_r()

2016-07-12 15:19:47 -03:00

builtin-list.c

perf subcmd: Create subcmd library

2015-12-17 14:27:14 -03:00

builtin-lock.c

perf subcmd: Create subcmd library

2015-12-17 14:27:14 -03:00

builtin-mem.c

perf mem: Add --ldlat option

2016-06-15 10:35:27 -03:00

builtin-probe.c

tools: Introduce str_error_r()

2016-07-12 15:19:47 -03:00

builtin-record.c

tools: Introduce str_error_r()

2016-07-12 15:19:47 -03:00

builtin-report.c

perf report: Introduce --stdio-color to setup the color output mode selection

2016-07-12 00:00:39 -03:00

builtin-sched.c

tools: Introduce str_error_r()

2016-07-12 15:19:47 -03:00

builtin-script.c

perf script: Add callindent option

2016-06-23 17:04:26 -03:00

builtin-stat.c

tools: Introduce str_error_r()

2016-07-12 15:19:47 -03:00

builtin-timechart.c

perf tools: Set buildid dir under symfs when --symfs is provided

2016-05-20 11:43:58 -03:00

builtin-top.c

tools: Introduce str_error_r()

2016-07-12 15:19:47 -03:00

builtin-trace.c

perf trace: Remove unused sys/ptrace.h include

2016-07-12 15:20:35 -03:00

builtin-version.c

perf tools: Move cmd_version() to builtin-version.c

2015-12-09 13:42:03 -03:00

builtin.h

perf tools: Remove needless 'extern' from function prototypes

2016-03-23 15:06:35 -03:00

command-list.txt

perf tools: Do not show trace command if it's not compiled in

2016-01-08 12:46:17 -03:00

CREDITS

perf_counter tools: Add CREDITS file for Git contributors

2009-06-24 19:54:29 +02:00

design.txt

perf tools: Update some code references in design.txt

2014-03-18 18:17:06 -03:00

Makefile

perf build tests: Do parallell builds with 'build-test'

2016-02-04 15:57:00 -03:00

Makefile.perf

tools: Copy the header files needed by perf tools

2016-07-12 15:20:36 -03:00

MANIFEST

perf tools: Add the tools/ stringify copy to the MANIFEST

2016-07-12 15:20:40 -03:00

perf-archive.sh

perf archive: Make 'f' the last parameter for tar

2012-09-17 13:10:42 -03:00

perf-completion.sh

perf tools: Avoid confusion with preloaded bash function for perf bash completion

2015-03-19 13:53:27 -03:00

perf-read-vdso.c

perf tools: Build programs to copy 32-bit compatibility

2014-10-29 10:32:48 -02:00

perf-sys.h

perf tools: Move syscall number fallbacks from perf-sys.h to tools/arch/x86/include/asm/

2016-07-12 15:19:54 -03:00

perf-with-kcore.sh

perf tools: Fix perf-with-kcore handling of arguments containing spaces

2015-08-06 16:48:27 -03:00

perf.c

perf tools: Fallback to reading sysfs to get cacheline size

2016-07-12 15:20:37 -03:00

perf.h

perf tools: Ditch record_opts.callgraph_set

2016-04-18 12:26:27 -03:00