135 lines
4.4 KiB
C
135 lines
4.4 KiB
C
/*
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* Copyright (c) 2014, Peter Haag
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* Copyright (c) 2009, Peter Haag
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* Copyright (c) 2004-2008, SWITCH - Teleinformatikdienste fuer Lehre und Forschung
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of the author nor the names of its contributors may be
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* used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* $Author: haag $
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*
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* $Id: nfprof.c 39 2009-11-25 08:11:15Z haag $
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*
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* $LastChangedRevision: 39 $
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*
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*/
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <strings.h>
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#ifdef HAVE_STDINT_H
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#include <stdint.h>
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#endif
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#include <sys/time.h>
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#include <sys/resource.h>
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#include "nfprof.h"
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/*
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* Initialize profiling.
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*
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*/
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int nfprof_start(nfprof_t *profile_data) {
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bzero (profile_data, sizeof(nfprof_t));
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return gettimeofday(&profile_data->tstart, (struct timezone*)NULL) == 0 ? 1 : 0;
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} // End of nfprof_start
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/*
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* Finish profiling.
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*
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*/
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int nfprof_end(nfprof_t *profile_data, uint64_t numflows) {
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int ret;
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if ((ret = gettimeofday(&profile_data->tend, (struct timezone*)NULL)) == -1)
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return 1;
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if ((ret = getrusage(RUSAGE_SELF, &profile_data->used)) == -1)
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return 1;
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profile_data->numflows = numflows;
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return 0;
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} // End of nfprof_end
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/*
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* Dump nfprof contents to std
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*
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*/
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void nfprof_print(nfprof_t *profile_data, FILE *std) {
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u_long usec, sec;
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double fps, allsecs;
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usec = profile_data->used.ru_utime.tv_usec + profile_data->used.ru_stime.tv_usec;
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sec = profile_data->used.ru_utime.tv_sec + profile_data->used.ru_stime.tv_sec;
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if (usec > 1000000)
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usec -= 1000000, ++sec;
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allsecs = (double)sec + ((double)usec/1000000);
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if ( allsecs == 0.0 )
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fps = 0;
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else
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fps = (double)profile_data->numflows / ((double)sec + ((double)usec/1000000));
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fprintf(std, "Sys: %lu.%-3.3lus flows/second: %-10.1f ", sec, usec/1000, fps);
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if (profile_data->tend.tv_usec < profile_data->tstart.tv_usec)
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profile_data->tend.tv_usec += 1000000, --profile_data->tend.tv_sec;
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usec = profile_data->tend.tv_usec - profile_data->tstart.tv_usec;
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sec = profile_data->tend.tv_sec - profile_data->tstart.tv_sec;
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if ( usec == 0 && sec == 0 )
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// acctually should never happen, but catch it anyway
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fps = 0;
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else
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fps = (double)profile_data->numflows / ((double)sec + ((double)usec/1000000));
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fprintf(std, "Wall: %lu.%-3.3lus flows/second: %-10.1f\n", sec, usec/1000, fps);
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/*
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fprintf(std, "\n");
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fprintf(std, "integral max resident set size: %u\n", profile_data->used.ru_maxrss);
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fprintf(std, "integral shared text memory size: %u\n", profile_data->used.ru_ixrss);
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fprintf(std, "integral unshared data size: %u\n", profile_data->used.ru_idrss);
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fprintf(std, "integral unshared stack size: %u\n", profile_data->used.ru_isrss);
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fprintf(std, "page reclaims: %u\n", profile_data->used.ru_minflt);
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fprintf(std, "page faults: %u\n", profile_data->used.ru_majflt);
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fprintf(std, "swaps: %u\n", profile_data->used.ru_nswap);
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fprintf(std, "block input operations: %u\n", profile_data->used.ru_inblock);
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fprintf(std, "block output operations: %u\n", profile_data->used.ru_oublock);
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*/
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} // End of nfprof_print
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