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2f53ae347f
linux_dsm_epyc7002/tools/perf
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Arnaldo Carvalho de Melo 2f53ae347f perf top: Add --switch-on/--switch-off events 
Just like 'perf trace' and 'perf script', should be useful for instance
to only consider samples after the initialization phase of some
workload.

The man page has some examples and considerations about its current
interface, that still doesn't handle the on/off events in a special way,
behaving just like when multiple events are specified, i.e.:

- In non-group mode (when the event list is not enclosed in {}) show a
  a menu to allow choosing which event the user wants to see in the
  histograms browser

- In group mode, be it using {} or asking for --group, show one column
  per event.

Try for instance:

  # perf top -e '{cycles,instructions,probe:icmp_rcv}' --switch-on=probe:icmp_rcv

Replace probe:icmp_rcv, that I put in place using:

  # perf probe icmp_rcv:59

To hit when broadcast packets arrive, with a probe installed after an
initialization phase is over or after some other point of interest, some
garbage collection, etc, and also use --switch-off, for instance, on a
probe installed after said garbage collection is over.

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-c7q7qjeqtyvc9mkeipxza6ne@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-08-15 16:03:26 -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 top: Add --switch-on/--switch-off events 2019-08-15 16:03:26 -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 top: Add --switch-on/--switch-off events 2019-08-15 16:03:26 -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 evswitch: Introduce init() method to set the on/off evsels from the command line 2019-08-15 12:25:55 -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: Add --switch-on/--switch-off events 2019-08-15 16:03:26 -03:00
builtin-trace.c perf trace: Add --switch-on/--switch-off events 2019-08-15 12:26:21 -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