linux-toradex.git/tools/perf/tests/shell, branch v6.12-rc4

perf test shell probe_vfs_getname: Remove extraneous '=' from probe line number regex

2024-09-11T12:35:34+00:00

Thomas reported the vfs_getname perf tests failing on s/390, it seems it
was just to some extraneous '=' somehow getting into the regexp, remove
it, now:

  root@x1:~# perf test getname
   91: Add vfs_getname probe to get syscall args filenames             : Ok
   93: Use vfs_getname probe to get syscall args filenames             : FAILED!
  126: Check open filename arg using perf trace + vfs_getname          : Ok
  root@x1:~#

Second one remains a mistery, have to take some time to nail it down.

Reported-by: Thomas Richter 
Tested-by: Thomas Richter 
Cc: Adrian Hunter 
Cc: Alexander Gordeev 
Cc: Heiko Carstens 
Cc: Ian Rogers 
Cc: Jiri Olsa 
Cc: Kan Liang 
Cc: Namhyung Kim 
Cc: Vasily Gorbik ,
Link: https://lore.kernel.org/lkml/1d7f3b7b-9edc-4d90-955c-9345428563f1@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo

perf inject: Lazy build-id mmap2 event insertion

2024-09-10T20:32:47+00:00

Add -B option that lazily inserts mmap2 events thereby dropping all
mmap events without samples. This is similar to the behavior of -b
where only build_id events are inserted when a dso is accessed in a
sample.

File size savings can be significant in system-wide mode, consider:

  $ perf record -g -a -o perf.data sleep 1
  $ perf inject -B -i perf.data -o perf.new.data
  $ ls -al perf.data perf.new.data
           5147049 perf.data
           2248493 perf.new.data

Give test coverage of the new option in pipe test.

Signed-off-by: Ian Rogers 
Acked-by: Namhyung Kim 
Cc: Adrian Hunter 
Cc: Alexander Shishkin 
Cc: Anne Macedo 
Cc: Casey Chen 
Cc: Colin Ian King 
Cc: Ingo Molnar 
Cc: Jiri Olsa 
Cc: Kan Liang 
Cc: Mark Rutland 
Cc: Peter Zijlstra 
Cc: Sun Haiyong 
Link: https://lore.kernel.org/r/20240909203740.143492-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo

perf inject: Add new mmap2-buildid-all option

2024-09-10T20:32:47+00:00

Add an option that allows all mmap or mmap2 events to be rewritten as
mmap2 events with build IDs.

This is similar to the existing -b/--build-ids and --buildid-all options
except instead of adding a build_id event an existing mmap/mmap2 event
is used as a template and a new mmap2 event synthesized from it.

As mmap2 events are typical this avoids the insertion of build_id
events.

Add test coverage to the pipe test.

Signed-off-by: Ian Rogers 
Acked-by: Namhyung Kim 
Cc: Adrian Hunter 
Cc: Alexander Shishkin 
Cc: Anne Macedo 
Cc: Casey Chen 
Cc: Colin Ian King 
Cc: Ingo Molnar 
Cc: Jiri Olsa 
Cc: Kan Liang 
Cc: Mark Rutland 
Cc: Peter Zijlstra 
Cc: Sun Haiyong 
Link: https://lore.kernel.org/r/20240909203740.143492-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo

perf tests probe_vfs_getname.sh: Update to use 'perf check feature'

2024-09-04T19:19:52+00:00

In probe_vfs_getname.sh, current we use "perf record --dry-run"
to check for libtraceevent and skip the test if perf is not
build with libtraceevent. Change the check to use "perf check feature"
option

Signed-off-by: Athira Rajeev 
Acked-by: Namhyung Kim 
Cc: Disha Goel 
Cc: Ian Rogers 
Cc: Jiri Olsa 
Cc: Kajol Jain 
Cc: Madhavan Srinivasan 
Cc: Namhyung Kim 
Link: https://lore.kernel.org/r/20240904190132.415212-6-adityag@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo

perf tools test_task_analyzer.sh: Update to use 'perf check feature'

2024-09-04T19:19:33+00:00

Currently we use output of 'perf version --build-options', to check
whether perf was built with libtraceevent support.

Instead, use 'perf check feature libtraceevent' to check for
libtraceevent support.

Reviewed-by: Athira Rajeev 
Signed-off-by: Aditya Gupta 
Acked-by: Namhyung Kim 
Cc: Disha Goel 
Cc: Ian Rogers 
Cc: Jiri Olsa 
Cc: Kajol Jain 
Cc: Madhavan Srinivasan 
Cc: Namhyung Kim 
Link: https://lore.kernel.org/r/20240904190132.415212-5-adityag@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo

perf test: Skip uprobe test if probe command isn't present

2024-09-03T14:23:01+00:00

The probe command is dependent on libelf. Skip the test if the
required probe command isn't present.

Signed-off-by: Ian Rogers 
Cc: Adrian Hunter 
Cc: Alexander Shishkin 
Cc: Athira Rajeev 
Cc: Chaitanya S Prakash 
Cc: Colin Ian King 
Cc: David Ahern 
Cc: Dominique Martinet 
Cc: Ingo Molnar 
Cc: James Clark 
Cc: Jiri Olsa 
Cc: John Garry 
Cc: Junhao He 
Cc: Kan Liang 
Cc: Mark Rutland 
Cc: Masami Hiramatsu 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Yang Jihong 
Link: https://lore.kernel.org/r/20240831070415.506194-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo

perf test: Additional pipe tests with pipe output written to a file

2024-08-30T12:24:27+00:00

Additional pipe tests where piped files are written to disk. This
means that spotting a file name of "-" isn't a sufficient "is pipe?"
test.

Signed-off-by: Ian Rogers 
Cc: Adrian Hunter 
Cc: Alexander Shishkin 
Cc: Ingo Molnar 
Cc: James Clark 
Cc: Jiri Olsa 
Cc: Kan Liang 
Cc: Mark Rutland 
Cc: Namhyung Kim 
Cc: Nick Terrell 
Cc: Peter Zijlstra 
Cc: Yanteng Si 
Cc: Yicong Yang 
Link: https://lore.kernel.org/r/20240829150154.37929-9-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo

perf test: Add 'perf record cgroup' filtering test

2024-08-28T21:22:27+00:00

  $ sudo ./perf test filtering -vv
   96: perf record sample filtering (by BPF) tests:
  --- start ---
  test child forked, pid 2966908
  Checking BPF-filter privilege
  Basic bpf-filter test
  Basic bpf-filter test [Success]
  Failing bpf-filter test
  Failing bpf-filter test [Success]
  Group bpf-filter test
  Group bpf-filter test [Success]
  Multiple bpf-filter test
  Multiple bpf-filter test [Success]
  Cgroup bpf-filter test
  Cgroup bpf-filter test [Success]
  ---- end(0) ----
   96: perf record sample filtering (by BPF) tests                     : Ok

Signed-off-by: Namhyung Kim 
Cc: Adrian Hunter 
Cc: Ian Rogers 
Cc: Ingo Molnar 
Cc: Jiri Olsa 
Cc: Kan Liang 
Cc: Peter Zijlstra 
Cc: Stephane Eranian 
Link: https://lore.kernel.org/r/20240826221045.1202305-5-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf test trace_btf_enum: Fix shellcheck warning

2024-08-28T21:18:33+00:00

Shellcheck versions < v0.7.2 can't follow this path so add the helper to
fix the following warning:

  In tests/shell/trace_btf_enum.sh line 13:
  . "$(dirname $0)"/lib/probe.sh
  ^--------------------------^ SC1090: Can't follow non-constant source.
  Use a directive to specify location.

Fixes: d66763fed30f0bd8 ("perf test trace_btf_enum: Add regression test for the BTF augmentation of enums in 'perf trace'")
Signed-off-by: James Clark 
Cc: Adrian Hunter 
Cc: Alexander Shishkin 
Cc: Howard Chu 
Cc: Ian Rogers 
Cc: Ingo Molnar 
Cc: Jiri Olsa 
Cc: Kan Liang 
Cc: Mark Rutland 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: https://lore.kernel.org/r/20240809095426.3065163-1-james.clark@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo

perf testsuite report: Add test case for perf report

2024-08-28T21:07:21+00:00

Add a new 'perf report' test case that acts as an entry element in 'perf
test list'.

Runs multiple subtests from directory "base_report", which can be
expanded without further editing.

Signed-off-by: Veronika Molnarova 
Cc: Athira Rajeev 
Cc: Ian Rogers 
Cc: Masami Hiramatsu 
Cc: Namhyung Kim 
Link: https://lore.kernel.org/r/20240702110849.31904-12-vmolnaro@redhat.com
Signed-off-by: Michael Petlan 
Signed-off-by: Arnaldo Carvalho de Melo