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path: root/src/datacache/perf_datacache.c
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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,
	       "Failed to initialize datacache.  Database likely not setup, skipping test.\n");
      return;
    }
  exp = GNUNET_TIME_absolute_get ();
  start = exp;
  exp.abs_value += 5 * 60 * 1000;
  memset (&k, 0, sizeof (GNUNET_HashCode));
  for (i = 0; i < ITERATIONS; i++)
    {
      if (0 == i % (ITERATIONS / 80))
	fprintf (stderr, ".");
      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, "\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, ".");
      GNUNET_CRYPTO_hash (&k, sizeof (GNUNET_HashCode), &n);
      GNUNET_DATACACHE_get (h, &k, 1+i%16,
			    &checkIt, &n);
      k = n;
    }
  fprintf (stderr, "\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 */