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831068eed9
Commitae42a2a2a3("perf tests: Speed up lock contention analysis shell test") in linux-next heavily optimized the test runtimes by switching the workload from the default of 10 process groups down to 1 (`perf bench sched messaging -g 1`). However, this change inadvertently dropped the original `-p` flag, causing the benchmark to default to `socketpair()` instead of `pipe()`. While `socketpair()` still generates some lock events on x86, it fails to trigger enough samples on architectures like s390, causing the test suite to fail due to lack of captured data. Restore the omitted `-p` pipe flag. The test retains the massive speedups achieved through the `-g 1` scaling, while producing a massive density of lock events across all architectures to fully satisfy the BPF trace filtering logic. Fixes:ae42a2a2a3("perf tests: Speed up lock contention analysis shell test") Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Thomas Richter <tmricht@linux.ibm.com> Assisted-by: Antigravity:gemini-3.1-pro Signed-off-by: Namhyung Kim <namhyung@kernel.org>