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/*
This file is part of GNUnet.
Copyright (C) 2020 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License,
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
Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
SPDX-License-Identifier: AGPL3.0-or-later
*/
/**
* @author Christian Grothoff
* @file util/perf_scheduler.c
* @brief measure performance of scheduler functions
*/
#include "platform.h"
#include "gnunet_util_lib.h"
#include <gauger.h>
#define RUNS (1024 * 1024)
static struct GNUNET_SCHEDULER_Task *task;
static void
run (void *cls)
{
uint64_t *count = cls;
task = NULL;
(*count)++;
if (*count >= RUNS)
{
GNUNET_SCHEDULER_shutdown ();
return;
}
task = GNUNET_SCHEDULER_add_now (&run,
count);
}
static void
do_shutdown (void *cls)
{
if (NULL != task)
GNUNET_SCHEDULER_cancel (task);
}
static void
first (void *cls)
{
uint64_t *count = cls;
(*count)++;
task = GNUNET_SCHEDULER_add_now (&run,
count);
GNUNET_SCHEDULER_add_shutdown (&do_shutdown,
NULL);
}
static uint64_t
perf_scheduler ()
{
uint64_t count = 0;
GNUNET_SCHEDULER_run (&first,
&count);
return count;
}
int
main (int argc, char *argv[])
{
struct GNUNET_TIME_Absolute start;
uint64_t tasks;
start = GNUNET_TIME_absolute_get ();
tasks = perf_scheduler ();
printf ("Scheduler perf took %s\n",
GNUNET_STRINGS_relative_time_to_string (
GNUNET_TIME_absolute_get_duration (start),
GNUNET_YES));
GAUGER ("UTIL", "Scheduler",
tasks / 1024 / (1
+ GNUNET_TIME_absolute_get_duration
(start).rel_value_us / 1000LL), "tasks/ms");
return 0;
}
/* end of perf_scheduler.c */
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