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dd41f660c0
linux_dsm_epyc7002/tools/perf
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Arnaldo Carvalho de Melo dd41f660c0 perf script: Allow specifying event to switch off processing of other events 
Counterpart of --switch-on:

  # perf record -e sched:*,syscalls:sys_*_nanosleep sleep 1
  [ perf record: Woken up 36 times to write data ]
  [ perf record: Captured and wrote 0.032 MB perf.data (10 samples) ]
  #
  # perf script
      :20918 20918 [002] 109866.143696:            sched:sched_waking: comm=perf pid=20919 prio=120 target_cpu=001
      :20918 20918 [002] 109866.143702:            sched:sched_wakeup: perf:20919 [120] success=1 CPU:001
       sleep 20919 [001] 109866.144081:      sched:sched_process_exec: filename=/usr/bin/sleep pid=20919 old_pid=20919
       sleep 20919 [001] 109866.144408:  syscalls:sys_enter_nanosleep: rqtp: 0x7ffc2384fef0, rmtp: 0x00000000
       sleep 20919 [001] 109866.144411:      sched:sched_stat_runtime: comm=sleep pid=20919 runtime=521249 [ns] vruntime=202919398131 [n>
       sleep 20919 [001] 109866.144412:            sched:sched_switch: sleep:20919 [120] S ==> swapper/1:0 [120]
     swapper     0 [001] 109867.144568:            sched:sched_waking: comm=sleep pid=20919 prio=120 target_cpu=001
     swapper     0 [001] 109867.144586:            sched:sched_wakeup: sleep:20919 [120] success=1 CPU:001
       sleep 20919 [001] 109867.144614:   syscalls:sys_exit_nanosleep: 0x0
       sleep 20919 [001] 109867.144753:      sched:sched_process_exit: comm=sleep pid=20919 prio=120
  #
  # perf script --switch-off syscalls:sys_exit_nanosleep
      :20918 20918 [002] 109866.143696:            sched:sched_waking: comm=perf pid=20919 prio=120 target_cpu=001
      :20918 20918 [002] 109866.143702:            sched:sched_wakeup: perf:20919 [120] success=1 CPU:001
       sleep 20919 [001] 109866.144081:      sched:sched_process_exec: filename=/usr/bin/sleep pid=20919 old_pid=20919
       sleep 20919 [001] 109866.144408:  syscalls:sys_enter_nanosleep: rqtp: 0x7ffc2384fef0, rmtp: 0x00000000
       sleep 20919 [001] 109866.144411:      sched:sched_stat_runtime: comm=sleep pid=20919 runtime=521249 [ns] vruntime=202919398131 [n>
       sleep 20919 [001] 109866.144412:            sched:sched_switch: sleep:20919 [120] S ==> swapper/1:0 [120]
     swapper     0 [001] 109867.144568:            sched:sched_waking: comm=sleep pid=20919 prio=120 target_cpu=001
     swapper     0 [001] 109867.144586:            sched:sched_wakeup: sleep:20919 [120] success=1 CPU:001
       sleep 20919 [001] 109867.144753:      sched:sched_process_exit: comm=sleep pid=20919 prio=120
  #
  # perf script --switch-on syscalls:sys_enter_nanosleep --switch-off syscalls:sys_exit_nanosleep
       sleep 20919 [001] 109866.144411:      sched:sched_stat_runtime: comm=sleep pid=20919 runtime=521249 [ns] vruntime=202919398131 [n>
       sleep 20919 [001] 109866.144412:            sched:sched_switch: sleep:20919 [120] S ==> swapper/1:0 [120]
     swapper     0 [001] 109867.144568:            sched:sched_waking: comm=sleep pid=20919 prio=120 target_cpu=001
     swapper     0 [001] 109867.144586:            sched:sched_wakeup: sleep:20919 [120] success=1 CPU:001
  #
  # perf script --switch-on syscalls:sys_enter_nanosleep --switch-off syscalls:sys_exit_nanosleep --show-on-off
       sleep 20919 [001] 109866.144408:  syscalls:sys_enter_nanosleep: rqtp: 0x7ffc2384fef0, rmtp: 0x00000000
       sleep 20919 [001] 109866.144411:      sched:sched_stat_runtime: comm=sleep pid=20919 runtime=521249 [ns] vruntime=202919398131 [n>
       sleep 20919 [001] 109866.144412:            sched:sched_switch: sleep:20919 [120] S ==> swapper/1:0 [120]
     swapper     0 [001] 109867.144568:            sched:sched_waking: comm=sleep pid=20919 prio=120 target_cpu=001
     swapper     0 [001] 109867.144586:            sched:sched_wakeup: sleep:20919 [120] success=1 CPU:001
       sleep 20919 [001] 109867.144614:   syscalls:sys_exit_nanosleep: 0x0
  #

Now think about using this together with 'perf probe' to create custom on/off
events in your app :-)

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: William Cohen <wcohen@redhat.com>
Link: https://lkml.kernel.org/n/tip-li3j01c4tmj9kw6ydsl8swej@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-08-15 12:24:16 -03:00
..
arch perf intel-pt: Process options for PEBS event synthesis 2019-08-14 10:59:59 -03:00
bench Merge remote-tracking branch 'torvalds/master' into perf/core 2019-08-12 16:25:00 -03:00
Documentation perf script: Allow specifying event to switch off processing of other events 2019-08-15 12:24:16 -03:00
examples/bpf perf trace beauty: Add BPF augmenter for the 'rename' syscall 2019-07-29 18:34:42 -03:00
include/bpf perf include bpf: Add bpf_tail_call() prototype 2019-07-29 18:34:40 -03:00
jvmti tools build: Check if gettid() is available before providing helper 2019-07-07 17:53:09 -03:00
lib libperf: Initial documentation 2019-07-29 18:34:47 -03:00
pmu-events perf vendor events intel: Add Tremontx event file v1.02 2019-08-15 12:04:04 -03:00
python treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 407 2019-06-05 17:37:14 +02:00
scripts perf scripts python: export-to-postgresql.py: Export switch events 2019-07-10 13:05:12 -03:00
tests perf tools: Add NO_LIBCAP=1 to the minimal build test 2019-08-14 10:59:59 -03:00
trace tools perf beauty: Fix usbdevfs_ioctl table generator to handle _IOC() 2019-07-29 09:03:42 -03:00
ui perf ui: No need to set ui_browser to 1 twice 2019-08-14 11:00:00 -03:00
util perf record: Support aarch64 random socket_id assignment 2019-08-14 11:00:00 -03:00
.gitignore perf tools: Add trace/beauty/generated/ into .gitignore 2018-02-05 13:58:02 -03:00
Build perf tools: Rename build libperf to perf 2019-02-14 15:18:08 -03:00
builtin-annotate.c perf evsel: Rename struct perf_evsel to struct evsel 2019-07-29 18:34:42 -03:00
builtin-bench.c tools lib: Adopt zalloc()/zfree() from tools/perf 2019-07-09 10:13:26 -03:00
builtin-buildid-cache.c perf data: Add global path holder 2019-02-22 16:52:07 -03:00
builtin-buildid-list.c perf data: Add global path holder 2019-02-22 16:52:07 -03:00
builtin-c2c.c perf evlist: Rename struct perf_evlist to struct evlist 2019-07-29 18:34:42 -03:00
builtin-config.c perf tools: Add missing headers, mostly stdlib.h 2019-07-09 10:13:22 -03:00
builtin-data.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
builtin-diff.c perf evlist: Rename struct perf_evlist to struct evlist 2019-07-29 18:34:42 -03:00
builtin-evlist.c libperf: Move perf_event_attr field from perf's evsel to libperf's perf_evsel 2019-07-29 18:34:45 -03:00
builtin-ftrace.c perf ftrace: Improve error message about capability to use ftrace 2019-08-14 10:59:59 -03:00
builtin-help.c tools lib: Adopt zalloc()/zfree() from tools/perf 2019-07-09 10:13:26 -03:00
builtin-inject.c libperf: Move perf_event_attr field from perf's evsel to libperf's perf_evsel 2019-07-29 18:34:45 -03:00
builtin-kallsyms.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 251 2019-06-05 17:30:26 +02:00
builtin-kmem.c perf evsel: Rename struct perf_evsel to struct evsel 2019-07-29 18:34:42 -03:00
builtin-kvm.c libperf: Add threads to struct perf_evlist 2019-07-29 18:34:45 -03:00
builtin-list.c perf list: Output tool events 2019-04-01 14:49:25 -03:00
builtin-lock.c perf evsel: Rename struct perf_evsel to struct evsel 2019-07-29 18:34:42 -03:00
builtin-mem.c perf evsel: Rename struct perf_evsel to struct evsel 2019-07-29 18:34:42 -03:00
builtin-probe.c perf probe: Avoid calling freeing routine multiple times for same pointer 2019-07-23 09:04:41 -03:00
builtin-record.c perf record: Add an option to take an AUX snapshot on exit 2019-08-14 10:59:59 -03:00
builtin-report.c libperf: Move nr_members from perf's evsel to libperf's perf_evsel 2019-07-29 18:34:46 -03:00
builtin-sched.c libperf: Add perf_cpu_map__new()/perf_cpu_map__read() functions 2019-07-29 18:34:45 -03:00
builtin-script.c perf script: Allow specifying event to switch off processing of other events 2019-08-15 12:24:16 -03:00
builtin-stat.c libperf: Move nr_members from perf's evsel to libperf's perf_evsel 2019-07-29 18:34:46 -03:00
builtin-timechart.c libperf: Move perf_event_attr field from perf's evsel to libperf's perf_evsel 2019-07-29 18:34:45 -03:00
builtin-top.c perf top: Collapse and resort all evsels in a group 2019-08-12 16:26:02 -03:00
builtin-trace.c perf trace: Fix segmentation fault when access syscall info on arm64 2019-08-12 16:26:02 -03:00
builtin-version.c perf version: Fix segfault due to missing OPT_END() 2019-07-15 07:59:05 -03:00
builtin.h perf script: Add array bound checking to list_scripts 2019-03-11 16:33:19 -03:00
check-headers.sh tools perf: Move from sane_ctype.h obtained from git to the Linux's original 2019-06-25 21:02:47 -03:00
command-list.txt perf help: Add missing subcommand version 2018-09-19 14:53:36 -03:00
CREDITS
design.txt perf/doc: Update design.txt for exclude_{host|guest} flags 2019-01-21 11:01:18 +01:00
Makefile perf tools: Disable parallelism for 'make clean' 2018-08-20 08:54:58 -03:00
Makefile.config tools build: Add capability-related feature detection 2019-08-12 17:14:14 -03:00
Makefile.perf tools build: Add capability-related feature detection 2019-08-12 17:14:14 -03:00
MANIFEST tools lib: Adopt zalloc()/zfree() from tools/perf 2019-07-09 10:13:26 -03:00
perf-archive.sh License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
perf-completion.sh perf tools: Auto-complete for events with ':' 2017-12-27 12:16:00 -03:00
perf-read-vdso.c perf tools: Make find_vdso_map() more modular 2019-01-08 13:28:13 -03:00
perf-sys.h Drop a bunch of metag references 2018-02-23 14:29:59 +00:00
perf-with-kcore.sh Merge branch 'x86/cpu' into perf/core, to pick up dependent changes 2019-06-17 12:29:16 +02:00
perf.c perf config: Honour $PERF_CONFIG env var to specify alternate .perfconfig 2019-08-12 16:26:02 -03:00
perf.h perf record: Add an option to take an AUX snapshot on exit 2019-08-14 10:59:59 -03:00