linux_dsm_epyc7002/tools/perf/tests/attr
Ian Rogers 1b98c6e3ba perf test: Ensure sample_period is set libpfm4 events
Test that a command line option doesn't override the period set on a
libpfm4 event.

Without libpfm4 test passes as unsupported.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrii Nakryiko <andriin@fb.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: KP Singh <kpsingh@chromium.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: netdev@vger.kernel.org
Link: http://lore.kernel.org/lkml/20200728085734.609930-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-07-30 07:01:49 -03:00
..
base-record perf tools: Add kernel AUX area sampling definitions 2019-11-21 10:54:20 -03:00
base-stat perf tools: Add kernel AUX area sampling definitions 2019-11-21 10:54:20 -03:00
README perf test: Ensure sample_period is set libpfm4 events 2020-07-30 07:01:49 -03:00
system-wide-dummy perf record: Add dummy event during system wide synthesis 2020-05-28 10:03:25 -03:00
test-record-basic perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-branch-any perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-branch-filter-any perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-branch-filter-any_call perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-branch-filter-any_ret perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-branch-filter-hv perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-branch-filter-ind_call perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-branch-filter-k perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-branch-filter-u perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-C0 perf record: Add dummy event during system wide synthesis 2020-05-28 10:03:25 -03:00
test-record-count perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-data perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-freq perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-graph-default perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-graph-dwarf perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-graph-fp perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-group perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-group1 perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-group-sampling perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-no-buffering perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-no-inherit perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-no-samples perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-period perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-record-pfm-period perf test: Ensure sample_period is set libpfm4 events 2020-07-30 07:01:49 -03:00
test-record-raw perf tools: Save bpf_prog_info and BTF of new BPF programs 2019-03-21 11:27:04 -03:00
test-stat-basic perf tests attr: Make hw events optional 2017-10-23 11:20:54 -03:00
test-stat-C0 perf tests attr: Make hw events optional 2017-10-23 11:20:54 -03:00
test-stat-default perf tests attr: Make hw events optional 2017-10-23 11:20:54 -03:00
test-stat-detailed-1 perf tests attr: Make hw events optional 2017-10-23 11:20:54 -03:00
test-stat-detailed-2 perf tests attr: Make hw events optional 2017-10-23 11:20:54 -03:00
test-stat-detailed-3 perf tests attr: Make hw events optional 2017-10-23 11:20:54 -03:00
test-stat-group perf tests attr: Fix group stat tests 2017-10-03 09:41:45 -03:00
test-stat-group1 perf tests attr: Fix group stat tests 2017-10-03 09:41:45 -03:00
test-stat-no-inherit perf tests attr: Make hw events optional 2017-10-23 11:20:54 -03:00

The struct perf_event_attr test (attr tests) support
====================================================
This testing support is embedded into perf directly and is governed
by the PERF_TEST_ATTR environment variable and hook inside the
sys_perf_event_open function.

The general idea is to store 'struct perf_event_attr' details for
each event created within single perf command. Each event details
are stored into separate text file. Once perf command is finished
these files are checked for values we expect for command.

The attr tests consist of following parts:

tests/attr.c
------------
This is the sys_perf_event_open hook implementation. The hook
is triggered when the PERF_TEST_ATTR environment variable is
defined. It must contain name of existing directory with access
and write permissions.

For each sys_perf_event_open call event details are stored in
separate file. Besides 'struct perf_event_attr' values we also
store 'fd' and 'group_fd' values to allow checking for groups.

tests/attr.py
-------------
This is the python script that does all the hard work. It reads
the test definition, executes it and checks results.

tests/attr/
-----------
Directory containing all attr test definitions.
Following tests are defined (with perf commands):

  perf record kill                              (test-record-basic)
  perf record -b kill                           (test-record-branch-any)
  perf record -j any kill                       (test-record-branch-filter-any)
  perf record -j any_call kill                  (test-record-branch-filter-any_call)
  perf record -j any_ret kill                   (test-record-branch-filter-any_ret)
  perf record -j hv kill                        (test-record-branch-filter-hv)
  perf record -j ind_call kill                  (test-record-branch-filter-ind_call)
  perf record -j k kill                         (test-record-branch-filter-k)
  perf record -j u kill                         (test-record-branch-filter-u)
  perf record -c 123 kill                       (test-record-count)
  perf record -d kill                           (test-record-data)
  perf record -F 100 kill                       (test-record-freq)
  perf record -g kill                           (test-record-graph-default)
  perf record --call-graph dwarf kill		(test-record-graph-dwarf)
  perf record --call-graph fp kill              (test-record-graph-fp)
  perf record --group -e cycles,instructions kill (test-record-group)
  perf record -e '{cycles,instructions}' kill   (test-record-group1)
  perf record -D kill                           (test-record-no-delay)
  perf record -i kill                           (test-record-no-inherit)
  perf record -n kill                           (test-record-no-samples)
  perf record -c 100 -P kill                    (test-record-period)
  perf record -c 1 --pfm-events=cycles:period=2 (test-record-pfm-period)
  perf record -R kill                           (test-record-raw)
  perf stat -e cycles kill                      (test-stat-basic)
  perf stat kill                                (test-stat-default)
  perf stat -d kill                             (test-stat-detailed-1)
  perf stat -dd kill                            (test-stat-detailed-2)
  perf stat -ddd kill                           (test-stat-detailed-3)
  perf stat --group -e cycles,instructions kill (test-stat-group)
  perf stat -e '{cycles,instructions}' kill     (test-stat-group1)
  perf stat -i -e cycles kill                   (test-stat-no-inherit)