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7a2fbbf0ee
zebra.h pulls in config.h, which results in fiddling with things like __FILE_OFFSET_BITS. It must always be included first, in order to set flags that influence the compiler via <features.h>. Signed-off-by: David Lamparter <equinox@opensourcerouting.org> (cherry picked from commit 821df2cf18e5978cc7ab532a8695444380d08270)
106 lines
2.9 KiB
C
106 lines
2.9 KiB
C
/*
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* Test program which measures the time it takes to schedule and
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* remove timers.
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*
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* Copyright (C) 2013 by Open Source Routing.
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* Copyright (C) 2013 by Internet Systems Consortium, Inc. ("ISC")
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*
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* This file is part of Quagga
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*
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* Quagga is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* Quagga is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Quagga; see the file COPYING. If not, write to the Free
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* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#include <zebra.h>
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#include <stdio.h>
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#include <unistd.h>
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#include "thread.h"
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#include "pqueue.h"
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#include "prng.h"
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#define SCHEDULE_TIMERS 1000000
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#define REMOVE_TIMERS 500000
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struct thread_master *master;
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static int dummy_func(struct thread *thread)
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{
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return 0;
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}
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int main(int argc, char **argv)
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{
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struct prng *prng;
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int i;
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struct thread **timers;
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struct timeval tv_start, tv_lap, tv_stop;
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unsigned long t_schedule, t_remove;
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master = thread_master_create();
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prng = prng_new(0);
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timers = calloc(SCHEDULE_TIMERS, sizeof(*timers));
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/* create thread structures so they won't be allocated during the
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* time measurement */
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for (i = 0; i < SCHEDULE_TIMERS; i++)
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timers[i] = thread_add_timer_msec(master, dummy_func, NULL, 0);
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for (i = 0; i < SCHEDULE_TIMERS; i++)
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thread_cancel(timers[i]);
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quagga_gettime(QUAGGA_CLK_MONOTONIC, &tv_start);
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for (i = 0; i < SCHEDULE_TIMERS; i++)
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{
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long interval_msec;
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interval_msec = prng_rand(prng) % (100 * SCHEDULE_TIMERS);
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timers[i] = thread_add_timer_msec(master, dummy_func,
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NULL, interval_msec);
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}
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quagga_gettime(QUAGGA_CLK_MONOTONIC, &tv_lap);
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for (i = 0; i < REMOVE_TIMERS; i++)
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{
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int index;
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index = prng_rand(prng) % SCHEDULE_TIMERS;
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if (timers[index])
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thread_cancel(timers[index]);
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timers[index] = NULL;
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}
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quagga_gettime(QUAGGA_CLK_MONOTONIC, &tv_stop);
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t_schedule = 1000 * (tv_lap.tv_sec - tv_start.tv_sec);
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t_schedule += (tv_lap.tv_usec - tv_start.tv_usec) / 1000;
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t_remove = 1000 * (tv_stop.tv_sec - tv_lap.tv_sec);
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t_remove += (tv_stop.tv_usec - tv_lap.tv_usec) / 1000;
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printf("Scheduling %d random timers took %ld.%03ld seconds.\n",
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SCHEDULE_TIMERS, t_schedule/1000, t_schedule%1000);
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printf("Removing %d random timers took %ld.%03ld seconds.\n",
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REMOVE_TIMERS, t_remove/1000, t_remove%1000);
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fflush(stdout);
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free(timers);
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thread_master_free(master);
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prng_free(prng);
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return 0;
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}
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