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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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