2 This file is part of GNUnet.
3 (C) 2002, 2003, 2004, 2006 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 2, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
22 * @author Christian Grothoff
23 * @file util/perf_crypto_hash.c
24 * @brief measure performance of hash function
27 #include "gnunet_common.h"
28 #include "gnunet_crypto_lib.h"
29 #include "gnunet_time_lib.h"
41 buf = GNUNET_malloc (1024 * 64);
42 memset (buf, 1, 1024 * 64);
43 GNUNET_CRYPTO_hash ("foo", 3, &hc1);
44 for (i = 0; i < 1024; i++)
46 GNUNET_CRYPTO_hash (&hc1, sizeof (GNUNET_HashCode), &hc2);
47 GNUNET_CRYPTO_hash (&hc2, sizeof (GNUNET_HashCode), &hc1);
48 GNUNET_CRYPTO_hash (buf, 1024 * 64, &hc3);
54 main (int argc, char *argv[])
56 struct GNUNET_TIME_Absolute start;
58 start = GNUNET_TIME_absolute_get ();
60 printf ("Hash perf took %llu ms\n",
62 GNUNET_TIME_absolute_get_duration (start).rel_value);
63 GAUGER ("UTIL:Cryptographic hashing", 1024 * 64 * 1024 / (1+GNUNET_TIME_absolute_get_duration (start).rel_value), "kb/s");
67 /* end of hashperf.c */