nginx access log 记录cgi执行时间

log_format combined_with_time '$remote_addr - $remote_user [$time_local]  '
                     '$request $status $body_bytes_sent '
                     '$http_referer $http_user_agent '
                     '$request_time $upstream_response_time';

access_log  /data/wwwroot/xxxx/vagrant/nginx/log/frontend-access.log combined_with_time;