#!/usr/local/bin/php
<?php
$average_load = (double)shell_exec("(uptime | awk '{print $10+0}')");
$cpu_count = (int)shell_exec("nproc");
if ($cpu_count <= 8) {
if ($average_load >= ($cpu_count * 20)) {
echo "CRITICAL: Load $average_load/$cpu_count";
exit(2);
} else {
echo "OK: Load Average(low cores): $average_load/$cpu_count";
exit(0);
}
} else {
if ($average_load >= ($cpu_count * 1.5)) {
echo "CRITICAL: Load $average_load/$cpu_count";
exit(2);
} else {
echo "OK: Load Average: $average_load/$cpu_count";
exit(0);
}
}