/*****************************************************************************\ * timers.c - Timer functions ***************************************************************************** * Copyright (C) 2002-2006 The Regents of the University of California. * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). * Written by Morris Jette * CODE-OCEC-09-009. All rights reserved. * * This file is part of Slurm, a resource management program. * For details, see . * Please also read the included file: DISCLAIMER. * * Slurm is free software; you can redistribute it and/or modify it under * the terms of the GNU General Public License as published by the Free * Software Foundation; either version 2 of the License, or (at your option) * any later version. * * In addition, as a special exception, the copyright holders give permission * to link the code of portions of this program with the OpenSSL library under * certain conditions as described in each individual source file, and * distribute linked combinations including the two. You must obey the GNU * General Public License in all respects for all of the code used other than * OpenSSL. If you modify file(s) with this exception, you may extend this * exception to your version of the file(s), but you are not obligated to do * so. If you do not wish to do so, delete this exception statement from your * version. If you delete this exception statement from all source files in * the program, then also delete it here. * * Slurm is distributed in the hope that it will be useful, but WITHOUT ANY * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more * details. * * You should have received a copy of the GNU General Public License along * with Slurm; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. \*****************************************************************************/ #include #include #include "src/common/log.h" #include "src/common/slurm_time.h" /* Return the number of micro-seconds between now and argument "tv", * Initialize tv to NOW if zero on entry */ extern int slurm_delta_tv(struct timeval *tv) { struct timeval now = {0, 0}; int delta_t; if (gettimeofday(&now, NULL)) return 1; /* Some error */ if (tv->tv_sec == 0) { tv->tv_sec = now.tv_sec; tv->tv_usec = now.tv_usec; return 0; } delta_t = (now.tv_sec - tv->tv_sec) * 1000000; delta_t += (now.tv_usec - tv->tv_usec); return delta_t; } /* * slurm_diff_tv_str - build a string showing the time difference between two * times * IN tv1 - start of event * IN tv2 - end of event * OUT tv_str - place to put delta time in format "usec=%ld" * IN len_tv_str - size of tv_str in bytes * IN from - where the function was called form */ extern void slurm_diff_tv_str(struct timeval *tv1, struct timeval *tv2, char *tv_str, int len_tv_str, const char *from, long limit, long *delta_t) { char p[64] = ""; struct tm tm; int debug_limit = limit; (*delta_t) = (tv2->tv_sec - tv1->tv_sec) * 1000000; (*delta_t) += tv2->tv_usec; (*delta_t) -= tv1->tv_usec; snprintf(tv_str, len_tv_str, "usec=%ld", *delta_t); if (from) { if (!limit) { /* NOTE: The slurmctld scheduler's default run time * limit is 4 seconds, but that would not typically * be reached. See "max_sched_time=" logic in * src/slurmctld/job_scheduler.c */ limit = 3000000; debug_limit = 1000000; } if ((*delta_t > debug_limit) || (*delta_t > limit)) { if (!localtime_r(&tv1->tv_sec, &tm)) error("localtime_r(): %m"); if (strftime(p, sizeof(p), "%T", &tm) == 0) error("strftime(): %m"); if (*delta_t > limit) { verbose("Warning: Note very large processing " "time from %s: %s began=%s.%3.3d", from, tv_str, p, (int)(tv1->tv_usec / 1000)); } else { /* Log anything over 1 second here */ debug("Note large processing time from %s: " "%s began=%s.%3.3d", from, tv_str, p, (int)(tv1->tv_usec / 1000)); } } } }