kernel/linux.git/tools/perf/tests/tests.h, branch v6.18.21

perf test: Remove C python_use test

2025-10-01T19:59:11+00:00

Removed in favor of the shell script version. Signed-off-by: Ian Rogers Tested-by: Arnaldo Carvalho de Melo Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Collin Funk Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: Kan Liang Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Ravi Bangoria Signed-off-by: Arnaldo Carvalho de Melo

perf test: Extend branch stack sampling test for Arm64 BRBE

2025-10-01T18:31:49+00:00

BRBE emits IRQ and ERET branches for branching and returning from trapped instructions. Add a test that loops on a trapped instruction (MRS - Read special register) for this. Extend the expected 'any_call' branches to include FAULT_DATA and FAULT_INST as these are emitted by BRBE. Reviewed-by: Ian Rogers Co-developed-by: German Gomez Signed-off-by: German Gomez Signed-off-by: James Clark Cc: Adam Young Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Anshuman Khandual Cc: Ingo Molnar Cc: Jiri Olsa Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Rob Herring Cc: Will Deacon Signed-off-by: Arnaldo Carvalho de Melo

perf test: Add libsubcmd help tests

2025-07-01T22:51:55+00:00

Add a set of tests for subcmd routines. Currently it fails the last one since there's a bug. It'll be fixed by the next commit. $ perf test subcmd 69: libsubcmd help tests : 69.1: Load subcmd names : Ok 69.2: Uniquify subcmd names : Ok 69.3: Exclude duplicate subcmd names : FAILED! Reviewed-by: Ian Rogers Link: https://lore.kernel.org/r/20250701201027.1171561-2-namhyung@kernel.org Signed-off-by: Namhyung Kim

perf test: Expand user space event reading (rdpmc) tests

2025-06-20T20:14:07+00:00

Test that disabling rdpmc support via /sys/bus/event_source/cpu*/rdpmc disables reading in the mmap (libperf read support will fallback to using a system call). Test all hybrid PMUs support rdpmc. Ensure hybrid PMUs use the correct CPU to rdpmc the correct event. Previously the test would open cycles or instructions with no extended type then rdpmc it on whatever CPU. This could fail/skip due to which CPU the test was scheduled upon. Signed-off-by: Ian Rogers Reviewed-by: Kan Liang Link: https://lore.kernel.org/r/20250614004528.1652860-1-irogers@google.com Signed-off-by: Namhyung Kim

perf test demangle-rust: Add Rust demangling test

2025-05-09T20:01:57+00:00

The test cases are listed examples in: https://doc.rust-lang.org/rustc/symbol-mangling/v0.html This test was previously part of a different Rust v0 demangler: https://lore.kernel.org/lkml/20250129193037.573431-1-irogers@google.com/ Signed-off-by: Ian Rogers Cc: Adrian Hunter Cc: Alex Gaynor Cc: Alexander Shishkin Cc: Alice Ryhl Cc: Andreas Hindborg Cc: Ariel Ben-Yehuda Cc: Benno Lossin Cc: Bill Wendling Cc: Björn Roy Baron Cc: Boqun Feng Cc: Daniel Xu Cc: Danilo Krummrich Cc: Gary Guo Cc: Howard Chu Cc: Ingo Molnar Cc: James Clark Cc: Jiapeng Chong Cc: Jiri Olsa Cc: Justin Stitt Cc: Kan Liang Cc: Mark Rutland Cc: Masami Hiramatsu Cc: Miguel Ojeda Cc: Namhyung Kim Cc: Nathan Chancellor Cc: Nick Desaulniers Cc: Peter Zijlstra Cc: Ravi Bangoria Cc: Stephen Brennan Cc: Trevor Gross Link: https://lore.kernel.org/r/20250430004128.474388-5-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf test: Introduce DEFINE_SUITE_EXCLUSIVE()

2024-12-13T19:55:09+00:00

A variant of DEFINE_SUITE() but sets ->exclusive bit for the test so the test will be executed sequentially. Signed-off-by: Ravi Bangoria Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Ananth Narayan Cc: Borislav Petkov Cc: Dave Hansen Cc: H. Peter Anvin Cc: Ian Rogers Cc: Ingo Molnar Cc: Jiri Olsa Cc: Kan Liang Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Sandipan Das Cc: Santosh Shukla Cc: Stephane Eranian Cc: Thomas Gleixner Cc: x86@kernel.org Link: https://lore.kernel.org/r/20241210093449.1662-10-ravi.bangoria@amd.com Signed-off-by: Arnaldo Carvalho de Melo

perf test: Add hwmon filename parser test

2024-11-09T16:27:44+00:00

Filename parsing maps a hwmon filename to constituent parts enum/int parts for the hwmon config value. Add a test case for the parsing. Signed-off-by: Ian Rogers Cc: Ravi Bangoria Cc: Yoshihiro Furudera Cc: Howard Chu Cc: Ze Gao Cc: Changbin Du Cc: Junhao He Cc: Weilin Wang Cc: James Clark Cc: Oliver Upton Cc: Athira Jajeev [namhyung: add #include for strlcpy()] Link: https://lore.kernel.org/r/20241109003759.473460-4-irogers@google.com Signed-off-by: Namhyung Kim

perf test: Run parallel tests in two passes

2024-10-28T16:32:58+00:00

In pass 1 run all tests that succeed when run in parallel. In pass 2 sequentially run all remaining tests that are flagged as "exclusive". Sequential and dont_fork tests keep to run in pass 1. Read the exclusive flag from the shell test descriptions, but remove from display to avoid >100 characters. Add error handling to finish tests if starting a later test fails. Mark the task-exit test as exclusive due to issues reported-by James Clark. Tested-by: James Clark Signed-off-by: Ian Rogers Cc: Colin Ian King Cc: Howard Chu Cc: Weilin Wang Cc: Ilya Leoshkevich Cc: Thomas Richter Cc: Andi Kleen Cc: Dapeng Mi Cc: Athira Jajeev Cc: Michael Petlan Cc: Veronika Molnarova Link: https://lore.kernel.org/r/20241025192109.132482-8-irogers@google.com Signed-off-by: Namhyung Kim

perf tests: Add tool PMU test

2024-10-11T06:41:13+00:00

Ensure parsing with and without PMU creates events with the expected config values. This ensures the tool.json doesn't get out of sync with tool_pmu_event enum. Signed-off-by: Ian Rogers Acked-by: Namhyung Kim Link: https://lore.kernel.org/r/20241002032016.333748-11-irogers@google.com Signed-off-by: Namhyung Kim

perf test: Add landlock workload

2024-07-31T19:12:46+00:00

We'll use it to add a regression test for the BTF augmentation of enum arguments for tracepoints in 'perf trace': root@x1:~# perf trace -e landlock_add_rule perf test -w landlock 0.000 ( 0.009 ms): perf/747160 landlock_add_rule(ruleset_fd: 11, rule_type: LANDLOCK_RULE_PATH_BENEATH, rule_attr: 0x7ffd8e258594, flags: 45) = -1 EINVAL (Invalid argument) 0.011 ( 0.002 ms): perf/747160 landlock_add_rule(ruleset_fd: 11, rule_type: LANDLOCK_RULE_NET_PORT, rule_attr: 0x7ffd8e2585a0, flags: 45) = -1 EINVAL (Invalid argument) root@x1:~# Committer notes: It was agreed on the discussion (see Link below) to shorten then name of the workload from 'landlock_add_rule' to 'landlock', and I moved it to a separate patch. Also, to address a build failure from Namhyung, I stopped loading linux/landlock.h and instead added the used defines, enums and types to make this build in older systems. All we want is to emit the syscall and intercept it. Suggested-by: Arnaldo Carvalho de Melo Signed-off-by: Howard Chu Tested-by: Arnaldo Carvalho de Melo Cc: Adrian Hunter Cc: Ian Rogers Cc: Jiri Olsa Cc: Kan Liang Cc: Namhyung Kim Link: https://lore.kernel.org/lkml/CAH0uvohaypdTV6Z7O5QSK+va_qnhZ6BP6oSJ89s1c1E0CjgxDA@mail.gmail.com Link: https://lore.kernel.org/r/20240624181345.124764-1-howardchu95@gmail.com Link: https://lore.kernel.org/r/20240624181345.124764-6-howardchu95@gmail.com Signed-off-by: Arnaldo Carvalho de Melo