kernel/linux.git/tools/perf/tests/tests.h, branch v6.1.168

perf test: Add 'datasym' test workload

2024-06-12T09:03:36+00:00

[ Upstream commit 3dfc01fe9d12a1e832f49deab37279faa8a9ebc8 ] The datasym workload is to check if perf mem command gets the data addresses precisely. This is needed for data symbol test. $ perf test -w datasym I had to keep the buf1 in the data section, otherwise it could end up in the BSS and was mmaped as a separate //anon region, then it was not symbolized at all. It needs to be fixed separately. Committer notes: Add a -U _FORTIFY_SOURCE to the datasym CFLAGS, as the main perf flags set it and it requires building with optimization, and this new test has a -O0. Signed-off-by: Namhyung Kim Cc: Adrian Hunter Cc: Athira Jajeev Cc: German Gomez Cc: Ian Rogers Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: Leo Yan Cc: Peter Zijlstra Cc: Zhengjun Xing Link: https://lore.kernel.org/r/20221116233854.1596378-12-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo Stable-dep-of: 256ef072b384 ("perf tests: Make "test data symbol" more robust on Neoverse N1") Signed-off-by: Sasha Levin

perf test: Add 'brstack' test workload

2024-06-12T09:03:36+00:00

[ Upstream commit a104f0ea99d846df19aad8a5476eb9bc39fa42ca ] The brstack is to run different kinds of branches repeatedly. This is necessary for brstack test case to verify if it has correct branch info. $ perf test -w brstack I renamed the internal functions to have brstack_ prefix as it's too generic name. Add a -U_FORTIFY_SOURCE to the brstack CFLAGS, as the main perf flags set it and it requires building with optimization, and this new test has a -O0. Signed-off-by: Namhyung Kim Cc: Adrian Hunter Cc: Athira Jajeev Cc: German Gomez Cc: Ian Rogers Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: Leo Yan Cc: Peter Zijlstra Cc: Zhengjun Xing Link: https://lore.kernel.org/r/20221116233854.1596378-10-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo Stable-dep-of: 256ef072b384 ("perf tests: Make "test data symbol" more robust on Neoverse N1") Signed-off-by: Sasha Levin

perf test: Add 'sqrtloop' test workload

2024-06-12T09:03:36+00:00

[ Upstream commit 39281709a6e2301ac4c6ac7015c7793392ca2dfe ] The sqrtloop creates a child process to run an infinite loop calling sqrt() with rand(). This is needed for ARM SPE fork test. $ perf test -w sqrtloop It can take an optional argument to specify how long it will run in seconds (default: 1). Committer notes: Explicitely ignored the sqrt() return to fix the build on systems where the compiler complains it isn't being used. And added a sqrtloop specific CFLAGS to disable optimizations to make this a bit more robust wrt dead code elimination. Doing that a -U_FORTIFY_SOURCE needs to be added, as -O0 is incompatible with it. Signed-off-by: Namhyung Kim Cc: Adrian Hunter Cc: Athira Jajeev Cc: German Gomez Cc: Ian Rogers Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: Leo Yan Cc: Peter Zijlstra Cc: Zhengjun Xing Link: https://lore.kernel.org/r/20221116233854.1596378-8-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo Stable-dep-of: 256ef072b384 ("perf tests: Make "test data symbol" more robust on Neoverse N1") Signed-off-by: Sasha Levin

perf test: Add 'leafloop' test workload

2024-06-12T09:03:36+00:00

[ Upstream commit 41522f7442905814c654dbe2ca7b8d3605c7e0cc ] The leafloop workload is to run an infinite loop in the test_leaf function. This is needed for the ARM fp callgraph test to verify if it gets the correct callchains. $ perf test -w leafloop Committer notes: Add a: -U_FORTIFY_SOURCE to the leafloop CFLAGS as the main perf flags set it and it requires building with optimization, and this new test has a -O0. Signed-off-by: Namhyung Kim Cc: Adrian Hunter Cc: Athira Jajeev Cc: German Gomez Cc: Ian Rogers Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: Leo Yan Cc: Peter Zijlstra Cc: Zhengjun Xing Link: https://lore.kernel.org/r/20221116233854.1596378-6-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo Stable-dep-of: 256ef072b384 ("perf tests: Make "test data symbol" more robust on Neoverse N1") Signed-off-by: Sasha Levin

perf test: Add 'thloop' test workload

2024-06-12T09:03:36+00:00

[ Upstream commit 69b352927885b17f03d3ee4ee38f580699af107a ] The thloop is similar to noploop but runs in two threads. This is needed to verify perf record --per-thread to handle multi-threaded programs properly. $ perf test -w thloop It also takes an optional argument to specify runtime in seconds (default: 1). Signed-off-by: Namhyung Kim Cc: Adrian Hunter Cc: Athira Jajeev Cc: German Gomez Cc: Ian Rogers Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: Leo Yan Cc: Peter Zijlstra Cc: Zhengjun Xing Link: https://lore.kernel.org/r/20221116233854.1596378-4-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo Stable-dep-of: 256ef072b384 ("perf tests: Make "test data symbol" more robust on Neoverse N1") Signed-off-by: Sasha Levin

perf test: Add -w/--workload option

2024-06-12T09:03:36+00:00

[ Upstream commit f215054d749b17c56e014fdca2fcc592dac4529c ] The -w/--workload option is to run a simple workload used by testing. This adds a basic framework to run the workloads and 'noploop' workload as an example. $ perf test -w noploop The noploop does a loop doing nothing (NOP) for a second by default. It can have an optional argument to specify the time in seconds. Signed-off-by: Namhyung Kim Cc: Adrian Hunter Cc: Athira Jajeev Cc: German Gomez Cc: Ian Rogers Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: Leo Yan Cc: Peter Zijlstra Cc: Zhengjun Xing Link: https://lore.kernel.org/r/20221116233854.1596378-2-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo Stable-dep-of: 256ef072b384 ("perf tests: Make "test data symbol" more robust on Neoverse N1") Signed-off-by: Sasha Levin

perf test sigtrap: Add basic stress test for sigtrap handling

2021-12-08T01:18:23+00:00

Add basic stress test for sigtrap handling as a perf tool built-in test. This allows sanity checking the basic sigtrap functionality from within the perf tool. Committer notes: Reported that !root was getting -EPERM, applied a fixup from Marco to set .exclude_{hv,kernel} that made it work. Signed-off-by: Marco Elver Tested-by: Arnaldo Carvalho de Melo Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Fabian Hemmer Cc: Ian Rogers Cc: Jiri Olsa Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: kasan-dev@googlegroups.com Link: http://lore.kernel.org/lkml/20211115112822.4077224-1-elver@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf test: Remove skip_if_fail

2021-11-13T21:11:50+00:00

Remove optionality, always run tests in a suite even if one fails. This brings perf's test more inline with kunit that lacks this notion. Signed-off-by: Ian Rogers Tested-by: Sohaib Mohamed Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Brendan Higgins Cc: Daniel Latypov Cc: David Gow Cc: Ingo Molnar Cc: Jin Yao Cc: John Garry Cc: Mark Rutland Cc: Namhyung Kim Cc: Paul Clarke Cc: Peter Zijlstra Cc: Stephane Eranian Link: https://lore.kernel.org/r/20211104064208.3156807-23-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf test: Remove is_supported function

2021-11-13T21:11:50+00:00

All tests now return TEST_SKIP if not supported. Removing this function brings perf's test_suite struct more inline with kunit. Signed-off-by: Ian Rogers Tested-by: Sohaib Mohamed Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Brendan Higgins Cc: Daniel Latypov Cc: David Gow Cc: Ingo Molnar Cc: Jin Yao Cc: John Garry Cc: Mark Rutland Cc: Namhyung Kim Cc: Paul Clarke Cc: Peter Zijlstra Cc: Stephane Eranian Link: https://lore.kernel.org/r/20211104064208.3156807-22-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf test: BP tests, remove is_supported use

2021-11-13T21:11:50+00:00

Migrate the is_supported functionality to returning TEST_SKIP. Motivation is kunit has no is_supported function. Signed-off-by: Ian Rogers Tested-by: Sohaib Mohamed Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Brendan Higgins Cc: Daniel Latypov Cc: David Gow Cc: Ingo Molnar Cc: Jin Yao Cc: John Garry Cc: Mark Rutland Cc: Namhyung Kim Cc: Paul Clarke Cc: Peter Zijlstra Cc: Stephane Eranian Link: https://lore.kernel.org/r/20211104064208.3156807-20-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo