#include "http_log.h" ap_log_error(APLOG_MARK, APLOG_ERR, 0, NULL, "timeout(%dms -> 24ms)", op_timeout); start = apr_time_now(); ... spent = apr_time_now() - start; start = apr_time_now(); ap_log_error(APLOG_MARK, APLOG_ERR, 0, NULL, "step2 - spent(%d)", spent); 참고할만한 사이트 http://systemv.pe.kr/apache2.4_module_develop http://dev.ariel-networks.com/apr/apr-tut..