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48314d20fe
linux/tools/perf
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Ian Rogers 48314d20fe perf test shell lbr: Avoid failures with perf event paranoia 
When not running as root and with higher perf event paranoia values
the perf record LBR tests could fail rather than skipping the
problematic tests.

Add the sensitivity to the test and confirm it passes with paranoia
values from -1 to 2.

Committer testing:

Testing with '$ perf test -vv lbr', i.e. as non root, and then comparing
the output shows the mentioned errors before this patch:

  acme@x1:~$ grep -m1 "model name" /proc/cpuinfo
  model name	: 13th Gen Intel(R) Core(TM) i7-1365U
  acme@x1:~$

Before:

 132: perf record LBR tests            : Skip

After:

 132: perf record LBR tests            : Ok

Fixes: 32559b99e0 ("perf test: Add set of perf record LBR tests")
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Chun-Tse Shao <ctshao@google.com>
Cc: Howard Chu <howardchu95@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2025-09-19 12:14:30 -03:00
..
arch perf arm_spe: Add "event_filter" entry in meta data 2025-09-19 12:14:28 -03:00
bench perf symbol: Add blocking argument to filename__read_build_id 2025-08-25 15:07:18 -07:00
check-header_ignore_hunks/lib perf tools: update expected diff for lib/list_sort.c 2024-11-05 17:12:33 -08:00
dlfilters perf tools: Simplify evsel__add_modifier() 2024-10-22 09:52:11 -07:00
Documentation perf tools: Update header documentation on BPF_PROG_INFO 2025-09-19 12:14:30 -03:00
include/perf perf dso: Move build_id to dso_id 2025-07-25 10:37:56 -07:00
jvmti perf: Fix libjvmti.c sign compare error 2025-06-09 22:12:08 -07:00
pmu-events perf vendor events arm64 AmpereOne: Fix typos in metrics' descriptions 2025-09-19 12:14:29 -03:00
python perf ilist: Add support for metrics 2025-09-03 12:34:54 -03:00
scripts perf flamegraph: Fix minor pylint/type hint issues 2025-07-16 10:43:27 -07:00
tests perf test shell lbr: Avoid failures with perf event paranoia 2025-09-19 12:14:30 -03:00
trace tools headers: Sync uapi/linux/vhost.h with the kernel source 2025-08-18 13:49:26 -07:00
ui perf annotate: Fix title line after return from call 2025-09-09 15:12:33 -03:00
util perf tools: Remove a pointless check 2025-09-19 12:14:30 -03:00
.gitignore perf tools: Remove libtraceevent in .gitignore 2025-07-26 15:38:10 -07:00
Build perf build: Specify shellcheck should use bash 2025-06-30 09:43:06 -07:00
builtin-annotate.c perf annotate: Add --code-with-type support for TUI 2025-08-28 12:33:08 -03:00
builtin-bench.c
builtin-buildid-cache.c perf symbol: Add blocking argument to filename__read_build_id 2025-08-25 15:07:18 -07:00
builtin-buildid-list.c perf machine: Explicitly pass in host perf_env 2025-07-25 10:37:57 -07:00
builtin-c2c.c perf sort: Use perf_env to set arch sort keys and header 2025-07-25 10:37:58 -07:00
builtin-check.c tools: Remove libcrypto dependency 2025-06-26 10:51:41 -07:00
builtin-config.c perf config: Add a function to set one variable in .perfconfig 2025-01-14 15:05:56 -03:00
builtin-daemon.c perf daemon: Fix the build on more 32-bit architectures 2024-08-19 21:44:30 -03:00
builtin-data.c
builtin-diff.c perf sort: Use perf_env to set arch sort keys and header 2025-07-25 10:37:58 -07:00
builtin-evlist.c perf evlist: Print hint for group 2024-09-11 13:08:45 -03:00
builtin-ftrace.c perf: ftrace: add graph tracer options args/retval/retval-hex/retaddr 2025-07-22 17:47:22 -07:00
builtin-help.c perf tools: Remove dependency on libaudit 2025-01-10 10:59:42 -03:00
builtin-inject.c perf symbol: Add blocking argument to filename__read_build_id 2025-08-25 15:07:18 -07:00
builtin-kallsyms.c perf machine: Explicitly pass in host perf_env 2025-07-25 10:37:57 -07:00
builtin-kmem.c perf session: Add accessor for session->header.env 2025-07-25 10:37:56 -07:00
builtin-kvm.c perf session: Add accessor for session->header.env 2025-07-25 10:37:56 -07:00
builtin-kwork.c perf session: Add accessor for session->header.env 2025-07-25 10:37:56 -07:00
builtin-list.c perf list: Skip ABI PMUs when printing pmu values 2025-07-26 16:31:43 -07:00
builtin-lock.c perf session: Add accessor for session->header.env 2025-07-25 10:37:56 -07:00
builtin-mem.c perf session: Add accessor for session->header.env 2025-07-25 10:37:56 -07:00
builtin-probe.c perf build: Rename HAVE_DWARF_SUPPORT to HAVE_LIBDW_SUPPORT 2024-10-18 10:17:40 -07:00
builtin-record.c perf auxtrace: Pass perf_env from session through to mmap read 2025-07-25 10:37:58 -07:00
builtin-report.c perf sort: Use perf_env to set arch sort keys and header 2025-07-25 10:37:58 -07:00
builtin-sched.c perf session: Add accessor for session->header.env 2025-07-25 10:37:56 -07:00
builtin-script.c perf sample: Remove arch notion of sample parsing 2025-07-25 10:37:58 -07:00
builtin-stat.c perf stat: Don't skip failing group events 2025-09-12 15:51:43 -03:00
builtin-timechart.c perf session: Add accessor for session->header.env 2025-07-25 10:37:56 -07:00
builtin-top.c perf sort: Use perf_env to set arch sort keys and header 2025-07-25 10:37:58 -07:00
builtin-trace.c perf trace: Add --max-summary option 2025-09-19 12:14:29 -03:00
builtin-version.c perf check: Share the feature status printing routine with 'perf version' 2025-04-10 10:44:04 -03:00
builtin.h perf check: Allow showing a tip for opt-in features not built into perf 2025-04-10 10:44:42 -03:00
check-headers.sh tools headers: Remove unused arm32 asm/kvm.h copy 2025-09-11 16:58:21 -03:00
command-list.txt
CREDITS
design.txt
Makefile perf tools: Fix wrong message when running "make JOBS=1" 2024-08-01 12:11:33 -03:00
Makefile.config tools: Remove libcrypto dependency 2025-06-26 10:51:41 -07:00
Makefile.perf perf build: Always disable stack protection for BPF skeleton objects 2025-07-20 20:49:35 -07:00
MANIFEST perf tools: Fix arm64 source package build 2025-05-13 17:26:35 -03:00
perf-archive.sh tools/perf: Add --exclude-buildids option to perf archive command 2025-06-26 15:40:19 -07:00
perf-completion.sh
perf-iostat.sh
perf-read-vdso.c
perf-sys.h
perf.c perf env: Remove global perf_env 2025-07-25 10:37:58 -07:00
perf.h perf: Completely remove possibility to override MAX_NR_CPUS 2025-09-12 10:52:22 -03:00