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/*
This file is part of GNUnet.
(C) 2002, 2003, 2004, 2006 Christian Grothoff (and other contributing authors)
GNUnet 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, or (at your
option) any later version.
GNUnet 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 GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @author Christian Grothoff
* @file util/perf_crypto_hash.c
* @brief measure performance of hash function
*/
#include "platform.h"
#include "gnunet_common.h"
#include "gnunet_crypto_lib.h"
#include "gnunet_time_lib.h"
#include <gauger.h>
static void
perfHash ()
{
struct GNUNET_HashCode hc1;
struct GNUNET_HashCode hc2;
struct GNUNET_HashCode hc3;
int i;
char *buf;
buf = GNUNET_malloc (1024 * 64);
memset (buf, 1, 1024 * 64);
GNUNET_CRYPTO_hash ("foo", 3, &hc1);
for (i = 0; i < 1024; i++)
{
GNUNET_CRYPTO_hash (&hc1, sizeof (struct GNUNET_HashCode), &hc2);
GNUNET_CRYPTO_hash (&hc2, sizeof (struct GNUNET_HashCode), &hc1);
GNUNET_CRYPTO_hash (buf, 1024 * 64, &hc3);
}
GNUNET_free (buf);
}
int
main (int argc, char *argv[])
{
struct GNUNET_TIME_Absolute start;
start = GNUNET_TIME_absolute_get ();
perfHash ();
printf ("Hash perf took %llu ms\n",
(unsigned long long)
GNUNET_TIME_absolute_get_duration (start).rel_value);
GAUGER ("UTIL", "Cryptographic hashing",
1024 * 64 * 1024 / (1 +
GNUNET_TIME_absolute_get_duration
(start).rel_value), "kb/s");
return 0;
}
/* end of hashperf.c */
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