PHP+swoole+linux实现系统监控和性能优化操作示例

class Server {  const PORT = 8811;  /**   * 获取端口指定端口信息;如果在运行返回1；否则返回0；   */  public function port() {    $shell = "netstat -anp 2>/dev/null | grep ". self::PORT . " | grep LISTEN | wc -l";    $result = shell_exec($shell);    if($result != 1) {      // 发送报警服务 邮件 短信      /// todo      echo date("Ymd H:i:s")."error".PHP_EOL;    } else {      echo date("Ymd H:i:s")."succss".PHP_EOL;    }  }}/** * swoole毫秒定时器；每隔2秒运行一下脚本 */swoole_timer_tick(2000, function($timer_id) {  (new Server())->port();  echo "time-start".PHP_EOL;});

echo "loading..."pid=`pidof live_master`echo $pidkill -USR1 $pidecho "loading success"