linux-stable.git/tools/perf/tests, branch v6.9.2

perf test: Fix spelling mistake "curent" -> "current"

2024-02-27T05:41:27+00:00

There is a spelling mistake in a pr_debug message. Fix it.

Signed-off-by: Colin Ian King 
Reviewed-by: Adrian Hunter 
Cc: kernel-janitors@vger.kernel.org
Signed-off-by: Namhyung Kim 
Link: https://lore.kernel.org/r/20240226105326.3944887-1-colin.i.king@gmail.com

perf test: Use TEST_FAIL in the TEST_ASSERT macros instead of -1

2024-02-26T16:31:24+00:00

Just to make things clearer, return TEST_FAIL (-1) instead of an open
coded -1.

Signed-off-by: Arnaldo Carvalho de Melo 
Reviewed-by: Ian Rogers 
Signed-off-by: Namhyung Kim 
Link: https://lore.kernel.org/r/ZdepeMsjagbf1ufD@x1

perf tests: Add option to run tests in parallel

2024-02-22T17:13:20+00:00

By default tests are forked, add an option (-p or --parallel) so that
the forked tests are all started in parallel and then their output
gathered serially. This is opt-in as running in parallel can cause
test flakes.

Rather than fork within the code, the start_command/finish_command
from libsubcmd are used. This changes how stderr and stdout are
handled. The child stderr and stdout are always read to avoid the
child blocking. If verbose is 1 (-v) then if the test fails the child
stdout and stderr are displayed. If the verbose is >1 (e.g. -vv) then
the stdout and stderr from the child are immediately displayed.

An unscientific test on my laptop shows the wall clock time for perf
test without parallel being 5 minutes 21 seconds and with parallel
(-p) being 1 minute 50 seconds.

Signed-off-by: Ian Rogers 
Cc: James Clark 
Cc: Justin Stitt 
Cc: Bill Wendling 
Cc: Nick Desaulniers 
Cc: Yang Jihong 
Cc: Nathan Chancellor 
Cc: Kan Liang 
Cc: Athira Jajeev 
Cc: llvm@lists.linux.dev
Signed-off-by: Namhyung Kim 
Link: https://lore.kernel.org/r/20240221034155.1500118-9-irogers@google.com

perf tests: Run time generate shell test suites

2024-02-22T17:13:06+00:00

Rather than special shell test logic, do a single pass to create an
array of test suites. Hold the shell test file name in the test suite
priv field. This makes the special shell test logic in builtin-test.c
redundant so remove it.

Signed-off-by: Ian Rogers 
Cc: James Clark 
Cc: Justin Stitt 
Cc: Bill Wendling 
Cc: Nick Desaulniers 
Cc: Yang Jihong 
Cc: Nathan Chancellor 
Cc: Kan Liang 
Cc: Athira Jajeev 
Cc: llvm@lists.linux.dev
Signed-off-by: Namhyung Kim 
Link: https://lore.kernel.org/r/20240221034155.1500118-8-irogers@google.com

perf tests: Use scandirat for shell script finding

2024-02-22T17:12:53+00:00

Avoid filename appending buffers by using openat, faccessat and
scandirat more widely. Turn the script's path back to a file name
using readlink from /proc//fd/.

Read the script's description using api/io.h to avoid fdopen
conversions. Whilst reading perform additional sanity checks on the
script's contents.

Signed-off-by: Ian Rogers 
Cc: James Clark 
Cc: Justin Stitt 
Cc: Bill Wendling 
Cc: Nick Desaulniers 
Cc: Yang Jihong 
Cc: Nathan Chancellor 
Cc: Kan Liang 
Cc: Athira Jajeev 
Cc: llvm@lists.linux.dev
Signed-off-by: Namhyung Kim 
Link: https://lore.kernel.org/r/20240221034155.1500118-7-irogers@google.com

perf test: Rename builtin-test-list and add missed header guard

2024-02-22T17:12:40+00:00

builtin-test-list is primarily concerned with shell script
tests. Rename the file to better reflect this and add a missed header
guard.

Signed-off-by: Ian Rogers 
Cc: James Clark 
Cc: Justin Stitt 
Cc: Bill Wendling 
Cc: Nick Desaulniers 
Cc: Yang Jihong 
Cc: Nathan Chancellor 
Cc: Kan Liang 
Cc: Athira Jajeev 
Cc: llvm@lists.linux.dev
Signed-off-by: Namhyung Kim 
Link: https://lore.kernel.org/r/20240221034155.1500118-6-irogers@google.com

perf tests: Avoid fork in perf_has_symbol test

2024-02-22T17:12:04+00:00

perf test -vv Symbols is used to indentify symbols within the perf
binary. Add the -F flag so that the test command doesn't fork the test
before running. This removes a little overhead.

Acked-by: Adrian Hunter 
Signed-off-by: Ian Rogers 
Cc: James Clark 
Cc: Justin Stitt 
Cc: Bill Wendling 
Cc: Nick Desaulniers 
Cc: Yang Jihong 
Cc: Nathan Chancellor 
Cc: Kan Liang 
Cc: Athira Jajeev 
Cc: llvm@lists.linux.dev
Signed-off-by: Namhyung Kim 
Link: https://lore.kernel.org/r/20240221034155.1500118-4-irogers@google.com

perf: build: introduce the libcapstone

2024-02-21T02:06:25+00:00

Later we will use libcapstone to disassemble instructions of samples.

Signed-off-by: Changbin Du 
Reviewed-by: Adrian Hunter 
Cc: changbin.du@gmail.com
Cc: Thomas Richter 
Cc: Andi Kleen 
Signed-off-by: Namhyung Kim 
Link: https://lore.kernel.org/r/20240217074046.4100789-2-changbin.du@huawei.com

perf testsuite: Add test for kprobe handling

2024-02-16T19:49:47+00:00

Test perf interface to kprobes: listing, adding and removing probes. It
is run as a part of perftool-testsuite_probe test case.

Signed-off-by: Veronika Molnarova 
Signed-off-by: Michael Petlan 
Cc: kjain@linux.ibm.com
Cc: atrajeev@linux.vnet.ibm.com
Signed-off-by: Namhyung Kim 
Link: https://lore.kernel.org/r/20240215110231.15385-7-mpetlan@redhat.com

perf testsuite: Add common output checking helpers

2024-02-16T19:49:36+00:00

As a form of validation, it is a common practice to check the outputs
of commands whether they contain expected patterns or match a certain
regex.

Add helpers for verifying that all regexes are found in the output, that
all lines match any pattern from a set and that a certain expression is
not present in the output.

In verbose mode these helpers log mismatches for easier failure
investigation.

Signed-off-by: Veronika Molnarova 
Signed-off-by: Michael Petlan 
Cc: kjain@linux.ibm.com
Cc: atrajeev@linux.vnet.ibm.com
Signed-off-by: Namhyung Kim 
Link: https://lore.kernel.org/r/20240215110231.15385-6-mpetlan@redhat.com