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| author | Tomas Glozar <tglozar@redhat.com> | 2025-02-18 15:58:59 +0100 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2025-03-04 12:35:18 -0500 |
| commit | 005682b403c5ecf7e1eb965e8dc9d6058061ee30 (patch) | |
| tree | 5b4d850f0b60b4f9e28207649f32e6fd1532bb51 | |
| parent | 9a82a3fd9ef2afaafbd6f8059609cdead0f97f15 (diff) | |
rtla/timerlat: Test BPF mode
Using the RTLA_NO_BPF environmental variable, execute rtla-timerlat
tests both with and without BPF support to cover both paths.
If rtla is built without BPF or the osnoise:timerlat_sample trace event
is not available, test only the non-BPF path.
Cc: John Kacur <jkacur@redhat.com>
Cc: Luis Goncalves <lgoncalv@redhat.com>
Cc: Gabriele Monaco <gmonaco@redhat.com>
Cc: Clark Williams <williams@redhat.com>
Link: https://lore.kernel.org/20250218145859.27762-9-tglozar@redhat.com
Signed-off-by: Tomas Glozar <tglozar@redhat.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
| -rw-r--r-- | tools/tracing/rtla/tests/timerlat.t | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/tools/tracing/rtla/tests/timerlat.t b/tools/tracing/rtla/tests/timerlat.t index e86f40e5749e..e939ff71d6be 100644 --- a/tools/tracing/rtla/tests/timerlat.t +++ b/tools/tracing/rtla/tests/timerlat.t @@ -4,7 +4,20 @@ source tests/engine.sh test_begin set_timeout 2m +timerlat_sample_event='/sys/kernel/tracing/events/osnoise/timerlat_sample' +if ldd $RTLA | grep libbpf >/dev/null && [ -d "$timerlat_sample_event" ] +then + # rtla build with BPF and system supports BPF mode + no_bpf_options='0 1' +else + no_bpf_options='1' +fi + +# Do every test with and without BPF +for option in $no_bpf_options +do +export RTLA_NO_BPF=$option check "verify help page" \ "timerlat --help" check "verify -s/--stack" \ @@ -23,5 +36,6 @@ check "verify -c/--cpus" \ "timerlat hist -c 0 -d 30s" check "hist test in nanoseconds" \ "timerlat hist -i 2 -c 0 -n -d 30s" +done test_end |