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| author | Namhyung Kim <namhyung@kernel.org> | 2024-10-16 09:23:59 +0300 |
|---|---|---|
| committer | Namhyung Kim <namhyung@kernel.org> | 2024-10-22 19:55:08 +0300 |
| commit | 36fae9f93e5f00eb3e410784ce99a4d7503aa12e (patch) | |
| tree | c8c45511759be561d640e234048a21e22fa7d354 /tools/perf | |
| parent | 634d36f82517eb5c6a9b9ec7fe3ba19dbbcb7809 (diff) | |
| download | linux-36fae9f93e5f00eb3e410784ce99a4d7503aa12e.tar.xz | |
perf test: Add precise_max subtest to the perf record shell test
It's a very simply test just to run with cycles:P and instructions:P
events.
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: James Clark <james.clark@arm.com>
Cc: Atish Patra <atishp@atishpatra.org>
Cc: Mingwei Zhang <mizhang@google.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Palmer Dabbelt <palmer@rivosinc.com>
Link: https://lore.kernel.org/r/20241016062359.264929-10-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Diffstat (limited to 'tools/perf')
| -rwxr-xr-x | tools/perf/tests/shell/record.sh | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/tools/perf/tests/shell/record.sh b/tools/perf/tests/shell/record.sh index 3eee72242290..f0e79200b981 100755 --- a/tools/perf/tests/shell/record.sh +++ b/tools/perf/tests/shell/record.sh @@ -271,6 +271,30 @@ test_topdown_leader_sampling() { echo "Topdown leader sampling test [Success]" } +test_precise_max() { + echo "precise_max attribute test" + if ! perf stat -e "cycles,instructions" true 2> /dev/null + then + echo "precise_max attribute [Skipped no hardware events]" + return + fi + # Just to make sure it doesn't fail + if ! perf record -o "${perfdata}" -e "cycles:P" true 2> /dev/null + then + echo "precise_max attribute [Failed cycles:P event]" + err=1 + return + fi + # On AMD, cycles and instructions events are treated differently + if ! perf record -o "${perfdata}" -e "instructions:P" true 2> /dev/null + then + echo "precise_max attribute [Failed instructions:P event]" + err=1 + return + fi + echo "precise_max attribute test [Success]" +} + # raise the limit of file descriptors to minimum if [[ $default_fd_limit -lt $min_fd_limit ]]; then ulimit -Sn $min_fd_limit @@ -284,6 +308,7 @@ test_branch_counter test_cgroup test_leader_sampling test_topdown_leader_sampling +test_precise_max # restore the default value ulimit -Sn $default_fd_limit |