original_kernel/tools/perf/tests
German Gomez 4f52ca1358 perf test arm-spe: Check if perf-record hangs when recording workload with forks
Add shell test to check if perf-record hangs when recording an arm_spe
event with forks.

The test FAILS if the Kernel is not patched with Commit 961c391217 ("perf:
Always wake the parent event").

Unpatched Kernel:

  $ perf test -v 90
  90: Check Arm SPE doesn't hang when there are forks
  --- start ---
  test child forked, pid 14232
  Recording workload with fork
  Log lines = 90 /tmp/__perf_test.stderr.0Nu0U
  Log lines after 1 second = 90 /tmp/__perf_test.stderr.0Nu0U
  SPE hang test: FAIL
  test child finished with -1
  ---- end ----
  Check Arm SPE trace data in workload with forks: FAILED!

Patched Kernel:

  $ perf test -v 90
  90: Check Arm SPE doesn't hang when there are forks
  --- start ---
  test child forked, pid 2930
  Compiling test program...
  Recording workload...
  Log lines = 478 /tmp/__perf_test.log.026AI
  Log lines after 1 second = 557 /tmp/__perf_test.log.026AI
  SPE hang test: PASS
  Cleaning up files...
  test child finished with 0
  ---- end ----
  Check Arm SPE trace data in workload with forks: Ok

Reviewed-by: James Clark <james.clark@arm.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: German Gomez <german.gomez@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220228165655.3920-1-german.gomez@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-06-03 21:18:35 +02:00
..
attr
shell perf test arm-spe: Check if perf-record hangs when recording workload with forks 2022-06-03 21:18:35 +02:00
.gitignore
Build
api-io.c
attr.c
attr.py
backward-ring-buffer.c
bitmap.c
bp_account.c
bp_signal.c
bp_signal_overflow.c
bpf-script-example.c
bpf-script-test-kbuild.c
bpf-script-test-prologue.c
bpf-script-test-relocation.c
bpf.c perf test bpf: Skip test if clang is not present 2022-05-21 14:54:21 -03:00
builtin-test.c perf test: Skip reason for suites with 1 test 2022-05-23 10:00:43 -03:00
clang.c
code-reading.c
cpumap.c
demangle-java-test.c
demangle-ocaml-test.c
dlfilter-test.c
dso-data.c
dwarf-unwind.c
event-times.c
event_update.c
evsel-roundtrip-name.c perf evsel: Constify a few arrays 2022-05-09 10:12:14 -03:00
evsel-tp-sched.c
expand-cgroup.c
expr.c
fdarray.c
genelf.c
hists_common.c
hists_common.h
hists_cumulate.c
hists_filter.c
hists_link.c
hists_output.c
is_printable_array.c
keep-tracking.c
kmod-path.c
llvm.c
llvm.h
make
maps.c
mem.c
mem2node.c
mmap-basic.c perf test: Basic mmap use skip 2022-05-23 10:03:39 -03:00
mmap-thread-lookup.c
openat-syscall-all-cpus.c perf test: Use skip in openat syscall 2022-05-23 10:01:57 -03:00
openat-syscall-tp-fields.c
openat-syscall.c perf test: Use skip in openat syscall 2022-05-23 10:01:57 -03:00
parse-events.c perf test: Parse events break apart tests 2022-05-23 10:04:59 -03:00
parse-metric.c
parse-no-sample-id-all.c
pe-file-parsing.c
pe-file.c
pe-file.exe
pe-file.exe.debug
perf-hooks.c
perf-record.c perf test: Use skip in PERF_RECORD_* 2022-05-23 10:05:07 -03:00
perf-targz-src-pkg
perf-time-to-tsc.c
pfm.c
pmu-events.c perf jevents: Modify match field 2022-05-23 10:08:15 -03:00
pmu.c
python-use.c
sample-parsing.c
sdt.c
sigtrap.c
stat.c
sw-clock.c
switch-tracking.c
task-exit.c
tests.h
thread-map.c
thread-maps-share.c
time-utils-test.c
topology.c perf test session topology: Fix test to skip the test in guest environment 2022-05-21 14:52:33 -03:00
unit_number__scnprintf.c
vmlinux-kallsyms.c perf test: Use skip in vmlinux kallsyms 2022-05-23 10:01:15 -03:00
wp.c