allow pref

diff --git a/scripts/benchmark.sh b/scripts/benchmark.sh
index 9b7dda40b21870bba9e41945ddddd9f31f1cf888..9aeeeab2284f9dc88cff4623ed0ba74c1b32bf01 100644 (file)
--- a/scripts/benchmark.sh
+++ b/scripts/benchmark.sh
@@ -9,6 +9,7 @@ plot_script="scripts/bench.plot"
 run() {
   echo "$1 $3 $2" >&2
   echo "perf stat -r$repeats $1 $test_dir/$3.$2"
+  sudo echo -1 > /proc/sys/kernel/perf_event_paranoid
   perf stat $1 $test_dir/$3.$2 >&2
   perf stat -r"$repeats" "$1" "$test_dir/$3.$2" 2>&1 | grep "time elapsed" |
     sed 's/ *\([0-9]*\),\([0-9]*\) .* seconds time elapsed *( +- *\([0-9]*\),\([0-9]*\)% )/\1.\2 \3.\4/'