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/*
This file is part of GNUnet.
(C) 2006, 2009, 2010 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 3, 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.
*/
/*
* @file datacache/perf_datacache.c
* @brief Performance evaluation for the datacache implementations.
* @author Nils Durner
*/
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_datacache_lib.h"
#include <gauger.h>
#define VERBOSE GNUNET_NO
#define ASSERT(x) do { if (! (x)) { printf("Error at %s:%d\n", __FILE__, __LINE__); goto FAILURE;} } while (0)
#define ITERATIONS 10000
static int ok;
static unsigned int found;
/**
* Name of plugin under test.
*/
static const char *plugin_name;
static int
checkIt (void *cls, struct GNUNET_TIME_Absolute exp,
const GNUNET_HashCode * key, size_t size, const char *data,
enum GNUNET_BLOCK_Type type)
{
if ((size == sizeof (GNUNET_HashCode)) && (0 == memcmp (data, cls, size)))
found++;
return GNUNET_OK;
}
static void
run (void *cls, char *const *args, const char *cfgfile,
const struct GNUNET_CONFIGURATION_Handle *cfg)
{
struct GNUNET_DATACACHE_Handle *h;
GNUNET_HashCode k;
GNUNET_HashCode n;
struct GNUNET_TIME_Absolute exp;
struct GNUNET_TIME_Absolute start;
unsigned int i;
char gstr[128];
ok = 0;
h = GNUNET_DATACACHE_create (cfg, "perfcache");
if (h == NULL)
{
FPRINTF (stderr, "%s", "Failed to initialize datacache. Database likely not setup, skipping test.\n");
return;
}
exp = GNUNET_TIME_relative_to_absolute (GNUNET_TIME_UNIT_HOURS);
start = GNUNET_TIME_absolute_get ();
memset (&k, 0, sizeof (GNUNET_HashCode));
for (i = 0; i < ITERATIONS; i++)
{
if (0 == i % (ITERATIONS / 80))
FPRINTF (stderr, "%s", ".");
GNUNET_CRYPTO_hash (&k, sizeof (GNUNET_HashCode), &n);
ASSERT (GNUNET_OK ==
GNUNET_DATACACHE_put (h, &k, sizeof (GNUNET_HashCode),
(const char *) &n, 1 + i % 16, exp));
k = n;
}
FPRINTF (stderr, "%s", "\n");
FPRINTF (stdout, "Stored %u items in %llums\n", ITERATIONS,
(unsigned long long)
GNUNET_TIME_absolute_get_duration (start).rel_value);
GNUNET_snprintf (gstr, sizeof (gstr), "DATACACHE-%s", plugin_name);
GAUGER (gstr, "Time to PUT item in datacache",
GNUNET_TIME_absolute_get_duration (start).rel_value / ITERATIONS,
"ms/item");
start = GNUNET_TIME_absolute_get ();
memset (&k, 0, sizeof (GNUNET_HashCode));
for (i = 0; i < ITERATIONS; i++)
{
if (0 == i % (ITERATIONS / 80))
FPRINTF (stderr, "%s", ".");
GNUNET_CRYPTO_hash (&k, sizeof (GNUNET_HashCode), &n);
GNUNET_DATACACHE_get (h, &k, 1 + i % 16, &checkIt, &n);
k = n;
}
FPRINTF (stderr, "%s", "\n");
FPRINTF (stdout,
"Found %u/%u items in %llums (%u were deleted during storage processing)\n",
found, ITERATIONS,
(unsigned long long)
GNUNET_TIME_absolute_get_duration (start).rel_value,
ITERATIONS - found);
if (found > 0)
GAUGER (gstr, "Time to GET item from datacache",
GNUNET_TIME_absolute_get_duration (start).rel_value / found,
"ms/item");
GNUNET_DATACACHE_destroy (h);
ASSERT (ok == 0);
return;
FAILURE:
if (h != NULL)
GNUNET_DATACACHE_destroy (h);
ok = GNUNET_SYSERR;
}
int
main (int argc, char *argv[])
{
char *pos;
char cfg_name[128];
char *const xargv[] = {
"perf-datacache",
"-c",
cfg_name,
#if VERBOSE
"-L", "DEBUG",
#endif
NULL
};
struct GNUNET_GETOPT_CommandLineOption options[] = {
GNUNET_GETOPT_OPTION_END
};
GNUNET_log_setup ("perf-datacache",
#if VERBOSE
"DEBUG",
#else
"WARNING",
#endif
NULL);
/* determine name of plugin to use */
plugin_name = argv[0];
while (NULL != (pos = strstr (plugin_name, "_")))
plugin_name = pos + 1;
if (NULL != (pos = strstr (plugin_name, ".")))
pos[0] = 0;
else
pos = (char *) plugin_name;
GNUNET_snprintf (cfg_name, sizeof (cfg_name), "perf_datacache_data_%s.conf",
plugin_name);
if (pos != plugin_name)
pos[0] = '.';
GNUNET_PROGRAM_run ((sizeof (xargv) / sizeof (char *)) - 1, xargv,
"perf-datacache", "nohelp", options, &run, NULL);
if (ok != 0)
FPRINTF (stderr, "Missed some perfcases: %d\n", ok);
return ok;
}
/* end of perf_datacache.c */
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