This script has been borrowed from https://gitlab.freedesktop.org/pipewire/pipewire/-/wikis/Performance#playback-441khz-audio-device-441khz

test-pw.sh

for i in 1000 200 120 50 20 10 2;
do
  paplay --latency-ms=$i 44100_s16_2chan_file.wav &
  PID=$!
  sleep 1
  echo "Latency $i 44100 server:"
  sudo perf stat -p `pidof pipewire-uninstalled` --timeout 5000
  echo "latency $i 44100 client:"
  sudo perf stat -p $PID --timeout 5000
  kill -9 $PID
  sleep 1
done