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| author | Namhyung Kim <namhyung@kernel.org> | 2022-11-17 00:38:49 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-11-23 14:26:27 +0100 |
| commit | 39281709a6e2301ac4c6ac7015c7793392ca2dfe (patch) | |
| tree | bf8d94e95bbc24af9a18e79befc52f2b6dcf501e /tools/perf/tests/builtin-test.c | |
| parent | perf test: Replace arm callgraph fp test workload with leafloop (diff) | |
| download | linux-39281709a6e2301ac4c6ac7015c7793392ca2dfe.tar.xz linux-39281709a6e2301ac4c6ac7015c7793392ca2dfe.zip | |
perf test: Add 'sqrtloop' test workload
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 <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20221116233854.1596378-8-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/tests/builtin-test.c')
| -rw-r--r-- | tools/perf/tests/builtin-test.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index 0ed5ac452f6e..9acb7a93eeb9 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -122,6 +122,7 @@ static struct test_workload *workloads[] = { &workload__noploop, &workload__thloop, &workload__leafloop, + &workload__sqrtloop, }; static int num_subtests(const struct test_suite *t) |