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git.proxmox.com Git - mirror_frr.git/blob - tests/lib/test_timer_performance.c
2 * Test program which measures the time it takes to schedule and
5 * Copyright (C) 2013 by Open Source Routing.
6 * Copyright (C) 2013 by Internet Systems Consortium, Inc. ("ISC")
8 * This file is part of Quagga
10 * Quagga is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2, or (at your option) any
15 * Quagga is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
20 * You should have received a copy of the GNU General Public License along
21 * with this program; see the file COPYING; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
33 #define SCHEDULE_TIMERS 1000000
34 #define REMOVE_TIMERS 500000
36 struct thread_master
*master
;
38 static int dummy_func(struct thread
*thread
)
43 int main(int argc
, char **argv
)
47 struct thread
**timers
;
48 struct timeval tv_start
, tv_lap
, tv_stop
;
49 unsigned long t_schedule
, t_remove
;
51 master
= thread_master_create(NULL
);
53 timers
= calloc(SCHEDULE_TIMERS
, sizeof(*timers
));
55 /* create thread structures so they won't be allocated during the
57 for (i
= 0; i
< SCHEDULE_TIMERS
; i
++) {
58 thread_add_timer_msec(master
, dummy_func
, NULL
, 0, &timers
[i
]);
60 for (i
= 0; i
< SCHEDULE_TIMERS
; i
++)
61 thread_cancel(&timers
[i
]);
65 for (i
= 0; i
< SCHEDULE_TIMERS
; i
++) {
68 interval_msec
= prng_rand(prng
) % (100 * SCHEDULE_TIMERS
);
69 thread_add_timer_msec(master
, dummy_func
, NULL
, interval_msec
,
75 for (i
= 0; i
< REMOVE_TIMERS
; i
++) {
78 index
= prng_rand(prng
) % SCHEDULE_TIMERS
;
79 thread_cancel(&timers
[index
]);
85 t_schedule
= 1000 * (tv_lap
.tv_sec
- tv_start
.tv_sec
);
86 t_schedule
+= (tv_lap
.tv_usec
- tv_start
.tv_usec
) / 1000;
88 t_remove
= 1000 * (tv_stop
.tv_sec
- tv_lap
.tv_sec
);
89 t_remove
+= (tv_stop
.tv_usec
- tv_lap
.tv_usec
) / 1000;
91 printf("Scheduling %d random timers took %lu.%03lu seconds.\n",
92 SCHEDULE_TIMERS
, t_schedule
/ 1000, t_schedule
% 1000);
93 printf("Removing %d random timers took %lu.%03lu seconds.\n",
94 REMOVE_TIMERS
, t_remove
/ 1000, t_remove
% 1000);
98 thread_master_free(master
);