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Namhyung Kim cdeb01bf78 perf sched timehist: Mark schedule function in callchains 
The sched_switch event always captured from the scheduler function.  So
it'd be great omit them from the callchain.  This patch marks the
functions to be omitted by later patch.

Committer notes:

Testing it:

Before:

  [root@jouet experimental]# perf sched record -g ls
  Dockerfile  perf.data  x-mips64
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 1.355 MB perf.data (29 samples) ]
  [root@jouet experimental]# perf sched timehist
      time  cpu  task name         wait time sch delay run time
                 [tid/pid]             (msec) (msec) (msec)
  ----------- -----  ----------------- ------ ------ ------
  6.494998 [001] <idle>                0.000  0.000  0.000
  6.495027 [002] perf[519]             0.000  0.000  0.000 __schedule <- schedule <- schedule_hrtimeout_range_clock <- schedule_hrtimeou
  6.495096 [003] <idle>                0.000  0.000  0.000
  6.495100 [003] rcuos/0[9]            0.000  0.005  0.003 __schedule <- schedule <- rcu_nocb_kthread <- kthread <- ret_from_fork
  6.495113 [001] perf[520]             0.000  0.008  0.114 __schedule <- preempt_schedule_common <- _cond_resched <- wait_for_completion
  6.495121 [000] <idle>                0.000  0.000  0.000
  6.495129 [001] migration/1[17]       0.000  0.003  0.016 __schedule <- schedule <- smpboot_thread_fn <- kthread <- ret_from_fork
  6.496085 [002] <idle>                0.000  0.000  1.057
  6.496096 [002] kworker/u16:1[31169]  0.000  0.004  0.011 __schedule <- schedule <- worker_thread <- kthread <- ret_from_fork
  6.496096 [003] <idle>                0.003  0.000  0.996
  6.496169 [002] <idle>                0.011  0.000  0.072
  6.496171 [000] ls[520]               0.008  0.000  1.049 __schedule <- schedule <- do_exit <- do_group_exit <- [unknown]
  6.496172 [003] gnome-terminal-[4391] 0.000  0.003  0.076 __schedule <- schedule <- schedule_hrtimeout_range_clock <- schedule_hrtimeo

After:

  [root@jouet experimental]# perf sched timehist
      time  cpu  task name         wait time sch delay run time
                 [tid/pid]            (msec)  (msec)  (msec)
  ----------- -----  ----------------- -----  -----  ------
  6.494998 [001] <idle>                0.000  0.000  0.000
  6.495027 [002] perf[519]             0.000  0.000  0.000 schedule_hrtimeout_range_clock <- schedule_hrtimeout_range <- poll_schedule_t
  6.495096 [003] <idle>                0.000  0.000  0.000
  6.495100 [003] rcuos/0[9]            0.000  0.005  0.003 rcu_nocb_kthread <- kthread <- ret_from_fork
  6.495113 [001] perf[520]             0.000  0.008  0.114 preempt_schedule_common <- _cond_resched <- wait_for_completion <- stop_one_c
  6.495121 [000] <idle>                0.000  0.000  0.000
  6.495129 [001] migration/1[17]       0.000  0.003  0.016 smpboot_thread_fn <- kthread <- ret_from_fork
  6.496085 [002] <idle>                0.000  0.000  1.057
  6.496096 [002] kworker/u16:1[31169]  0.000  0.004  0.011 worker_thread <- kthread <- ret_from_fork
  6.496096 [003] <idle>                0.003  0.000  0.996
  6.496169 [002] <idle>                0.011  0.000  0.072
  6.496171 [000] ls[520]               0.008  0.000  1.049 do_exit <- do_group_exit <- [unknown]
  6.496172 [003] gnome-terminal-[4391] 0.000  0.003  0.076 schedule_hrtimeout_range_clock <- schedule_hrtimeout_range <- poll_schedule_
  [root@jouet experimental]#

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/20161124011114.7102-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 		2016-11-25 10:49:43 -03:00
..
Documentation perf sched timehist: Add -V/--cpu-visual option 2016-11-23 10:44:09 -03:00
arch perf annotate: Initial PowerPC support 2016-11-25 10:38:56 -03:00
bench perf bench futex: Sanitize numeric parameters 2016-10-25 09:50:53 -03:00
jvmti perf kvmti: Remove unused Makefile file 2016-11-14 12:42:56 -03:00
pmu-events perf vendor events: Support couple more POWER8 PVRs in mapfile 2016-10-17 13:39:47 -03:00
python perf python: Add tracepoint example 2016-07-12 16:23:35 -03:00
scripts perf/core improvements and fixes: 2016-08-04 11:02:38 +02:00
tests perf jvmti: Plug compilation into perf build 2016-11-14 12:42:47 -03:00
trace perf trace beauty mmap: Add missing MADV_FREE 2016-09-19 11:25:07 -03:00
ui perf annotate: Remove duplicate 'name' field from disasm_line 2016-11-25 10:24:16 -03:00
util perf sched timehist: Mark schedule function in callchains 2016-11-25 10:49:43 -03:00
.gitignore perf tools: Add arch/*/include/generated/ to .gitignore 2016-05-30 12:41:46 -03:00
Build perf c2c: Add c2c command 2016-10-19 13:18:31 -03:00
CREDITS
…
MANIFEST tools lib: Add for_each_clear_bit macro 2016-10-24 11:07:33 -03:00
Makefile perf build tests: Do parallell builds with 'build-test' 2016-02-04 15:57:00 -03:00
Makefile.config perf jvmti: Plug compilation into perf build 2016-11-14 12:42:47 -03:00
Makefile.perf perf jvmti: Plug compilation into perf build 2016-11-14 12:42:47 -03:00
builtin-annotate.c perf annotate: Add branch stack / basic block 2016-09-08 13:44:03 -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-c2c.c perf c2c: Support cascading options 2016-11-23 10:44:06 -03:00
builtin-config.c perf config: Mark where are config items from (user or system) 2016-11-14 13:10:37 -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 hists: Add support for header span 2016-08-23 15:37:33 -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 symbols: Remove symbol_filter_t machinery 2016-09-05 11:14:50 -03:00
builtin-kmem.c perf symbols: Remove symbol_filter_t machinery 2016-09-05 11:14:50 -03:00
builtin-kvm.c perf kvm: Use NSEC_PER_USEC 2016-08-23 15:37:33 -03:00
builtin-list.c perf list: Support long jevents descriptions 2016-10-03 21:35:47 -03:00
builtin-lock.c perf subcmd: Create subcmd library 2015-12-17 14:27:14 -03:00
builtin-mem.c perf tools mem: Fix -t store option for record command 2016-08-12 14:39:48 -03:00
builtin-probe.c perf probe: Ignore vmlinux Build-id when offline vmlinux given 2016-09-01 12:42:22 -03:00
builtin-record.c perf record: Add support for using symbols in address filters 2016-09-29 11:17:02 -03:00
builtin-report.c perf report: Create a symbol_conf flag for showing branch flag counting 2016-11-14 13:23:42 -03:00
builtin-sched.c perf sched timehist: Mark schedule function in callchains 2016-11-25 10:49:43 -03:00
builtin-script.c perf tools: Introduce timestamp__scnprintf_usec() 2016-10-28 11:29:40 -02:00
builtin-stat.c perf tools: Add PMU configuration to tools 2016-09-22 13:07:36 -03:00
builtin-timechart.c perf timechart: Use NSEC_PER_U?SEC 2016-08-23 15:37:33 -03:00
builtin-top.c perf annotate: Start supporting cross arch annotation 2016-11-17 17:12:50 -03:00
builtin-trace.c perf trace: Use the syscall raw_syscalls:sys_enter timestamp 2016-10-24 11:07:46 -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 c2c: Add c2c command 2016-10-19 13:18:31 -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
design.txt
…
perf-archive.sh
…
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 powerpc: Fix build-test failure 2016-09-08 13:44:07 -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 c2c: Add c2c command 2016-10-19 13:18:31 -03:00
perf.h tools: Introduce tools/include/linux/time64.h for *SEC_PER_*SEC macros 2016-08-23 15:37:33 -03:00