[ADD] script performance: use tool to test request per second on website

script/performance/test_performance.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+# test_performance.sh https://website.com
+
+#ulimit -n 200000
+
+# (facultatif mais utile) sysctl temporaires pour la machine de test :
+#sudo sysctl -w net.core.somaxconn=65535
+#sudo sysctl -w net.core.netdev_max_backlog=250000
+#sudo sysctl -w net.ipv4.ip_local_port_range="1024 65000"
+#sudo sysctl -w net.ipv4.tcp_fin_timeout=15
+
+for c in 25 50 100 200 400; do
+  echo "== Concurrency: $c =="
+  #oha -z 30s -c $c $1 | tee -a results.txt
+  wrk -t$(nproc) -c$c -d30s "$1" | tee -a results.txt
+done