Commit c54e2f82 authored by Ian Rogers's avatar Ian Rogers Committed by Namhyung Kim
Browse files

perf tests record: Add basic uid filtering test 



Based on the system-wide test with changes around how failure is
handled as BPF permissions are a bigger issue than perf event
paranoia.

Signed-off-by: default avatarIan Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250604174545.2853620-6-irogers@google.com


Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
parent 1151208e

tools/perf/tests/shell/record.sh

+26 −0
Original line number Diff line number Diff line
@@ -231,6 +231,31 @@ test_cgroup() { 
  echo "Cgroup sampling test [Success]"

}



test_uid() {

  echo "Uid sampling test"

  if ! perf record -aB --synth=no --uid "$(id -u)" -o "${perfdata}" ${testprog} \

    > "${script_output}" 2>&1

  then

    if grep -q "libbpf.*EPERM" "${script_output}"

    then

      echo "Uid sampling [Skipped permissions]"

      return

    else

      echo "Uid sampling [Failed to record]"

      err=1

      # cat "${script_output}"

      return

    fi

  fi

  if ! perf report -i "${perfdata}" -q | grep -q "${testsym}"

  then

    echo "Uid sampling [Failed missing output]"

    err=1

    return

  fi

  echo "Uid sampling test [Success]"

}



test_leader_sampling() {

  echo "Basic leader sampling test"

  if ! perf record -o "${perfdata}" -e "{cycles,cycles}:Su" -- \
@@ -345,6 +370,7 @@ test_system_wide 
test_workload

test_branch_counter

test_cgroup

test_uid

test_leader_sampling

test_topdown_leader_sampling

test_precise_max