diff options
Diffstat (limited to 'tools/perf/tests/shell/test_stat_cpi_python.sh')
| -rwxr-xr-x | tools/perf/tests/shell/test_stat_cpi_python.sh | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/tools/perf/tests/shell/test_stat_cpi_python.sh b/tools/perf/tests/shell/test_stat_cpi_python.sh index fe7562307634..6cb376c92e2f 100755 --- a/tools/perf/tests/shell/test_stat_cpi_python.sh +++ b/tools/perf/tests/shell/test_stat_cpi_python.sh @@ -50,7 +50,7 @@ test_live_mode() { echo "perf stat failed (permissions?), skipping live mode test." return 0 fi - perf test -w noploop & + perf test -w noploop 60 & workload_pid=$! if ! perf stat -e cycles,instructions -p "$workload_pid" -- sleep 0.05 2>/dev/null && \ ! perf stat -e cycles:u,instructions:u -p "$workload_pid" -- sleep 0.05 2>/dev/null; then @@ -61,10 +61,16 @@ test_live_mode() { fi ran=1 - # Run live mode for 1 interval in the background, give it a tiny sleep, then interrupt + # Run live mode in the background, wait until at least one interval is + # printed, then interrupt. perf script stat-cpi -I 0.1 -p "$workload_pid" > "${temp_out}" & pid=$! - sleep 0.5 + for _ in $(seq 1 50); do + if grep -q "cpi" "${temp_out}"; then + break + fi + sleep 0.1 + done kill -INT "$pid" 2>/dev/null || true set +e wait "$pid" |