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/* benchmark.c - for libgcrypt
* Copyright (C) 2002 Free Software Foundation, Inc.
*
* This file is part of Libgcrypt.
*
* Libgcrypt is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser general Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* Libgcrypt 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <sys/times.h>
#include <gcrypt.h>
#define PGM "benchmark"
#define BUG() do {fprintf ( stderr, "Ooops at %s:%d\n", __FILE__ , __LINE__ );\
exit(2);} while(0)
/* Helper for the start and stop timer. */
static clock_t started_at, stopped_at;
static void
start_timer (void)
{
struct tms tmp;
times (&tmp);
started_at = stopped_at = tmp.tms_utime;
}
static void
stop_timer (void)
{
struct tms tmp;
times (&tmp);
stopped_at = tmp.tms_utime;
}
static const char *
elapsed_time (void)
{
static char buf[50];
sprintf (buf, "%5.0fms",
(((double) (stopped_at - started_at))/CLOCKS_PER_SEC)*10000000);
return buf;
}
static void
random_bench (void)
{
char buf[128];
int i;
printf ("%-10s", "random");
start_timer ();
for (i=0; i < 100; i++)
gcry_randomize (buf, sizeof buf, GCRY_STRONG_RANDOM);
stop_timer ();
printf (" %s", elapsed_time ());
start_timer ();
for (i=0; i < 100; i++)
gcry_randomize (buf, 8, GCRY_STRONG_RANDOM);
stop_timer ();
printf (" %s", elapsed_time ());
putchar ('\n');
}
static void
md_bench ( const char *algoname )
{
int algo = gcry_md_map_name (algoname);
GcryMDHd hd;
int i;
char buf[1000];
if (!algo)
{
fprintf (stderr, PGM ": invalid hash algorithm `%s'/n", algoname);
exit (1);
}
hd = gcry_md_open (algo, 0);
if (!hd)
{
fprintf (stderr, PGM ": error opeing hash algorithm `%s'/n", algoname);
exit (1);
}
for (i=0; i < sizeof buf; i++)
buf[i] = i;
printf ("%-10s", gcry_md_algo_name (algo));
start_timer ();
for (i=0; i < 1000; i++)
gcry_md_write (hd, buf, sizeof buf);
gcry_md_final (hd);
stop_timer ();
printf (" %s", elapsed_time ());
gcry_md_reset (hd);
start_timer ();
for (i=0; i < 10000; i++)
gcry_md_write (hd, buf, sizeof buf/10);
gcry_md_final (hd);
stop_timer ();
printf (" %s", elapsed_time ());
gcry_md_reset (hd);
start_timer ();
for (i=0; i < 1000000; i++)
gcry_md_write (hd, "", 1);
gcry_md_final (hd);
stop_timer ();
printf (" %s", elapsed_time ());
gcry_md_close (hd);
putchar ('\n');
}
int
main( int argc, char **argv )
{
if (argc < 2 )
{
fprintf (stderr, "usage: benchmark md [algonames]\n");
return 1;
}
argc--; argv++;
gcry_control (GCRYCTL_DISABLE_INTERNAL_LOCKING);
if ( !strcmp (*argv, "random"))
{
random_bench ();
}
else if ( !strcmp (*argv, "md"))
{
for (argc--, argv++; argc; argc--, argv++)
md_bench ( *argv );
}
else
{
fprintf (stderr, PGM ": bad arguments\n");
return 1;
}
return 0;
}
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