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Diffstat (limited to 'libevent/test/bench.c')
| -rw-r--r-- | libevent/test/bench.c | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/libevent/test/bench.c b/libevent/test/bench.c deleted file mode 100644 index 61b0502..0000000 --- a/libevent/test/bench.c +++ /dev/null @@ -1,181 +0,0 @@ -/* - * Copyright 2003 Niels Provos <provos@citi.umich.edu> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 4. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * - * Mon 03/10/2003 - Modified by Davide Libenzi <davidel@xmailserver.org> - * - * Added chain event propagation to improve the sensitivity of - * the measure respect to the event loop efficency. - * - * - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/time.h> -#include <sys/socket.h> -#include <sys/signal.h> -#include <sys/resource.h> -#include <fcntl.h> -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <unistd.h> -#include <errno.h> - -#include <event.h> - - -static int count, writes, fired; -static int *pipes; -static int num_pipes, num_active, num_writes; -static struct event *events; - - - -void -read_cb(int fd, short which, void *arg) -{ - int idx = (int) arg, widx = idx + 1; - u_char ch; - - count += read(fd, &ch, sizeof(ch)); - if (writes) { - if (widx >= num_pipes) - widx -= num_pipes; - write(pipes[2 * widx + 1], "e", 1); - writes--; - fired++; - } -} - -struct timeval * -run_once(void) -{ - int *cp, i, space; - static struct timeval ts, te; - - for (cp = pipes, i = 0; i < num_pipes; i++, cp += 2) { - event_del(&events[i]); - event_set(&events[i], cp[0], EV_READ | EV_PERSIST, read_cb, (void *) i); - event_add(&events[i], NULL); - } - - event_loop(EVLOOP_ONCE | EVLOOP_NONBLOCK); - - fired = 0; - space = num_pipes / num_active; - space = space * 2; - for (i = 0; i < num_active; i++, fired++) - write(pipes[i * space + 1], "e", 1); - - count = 0; - writes = num_writes; - { int xcount = 0; - gettimeofday(&ts, NULL); - do { - event_loop(EVLOOP_ONCE | EVLOOP_NONBLOCK); - xcount++; - } while (count != fired); - gettimeofday(&te, NULL); - - if (xcount != count) fprintf(stderr, "Xcount: %d, Rcount: %d\n", xcount, count); - } - - timersub(&te, &ts, &te); - - return (&te); -} - -int -main (int argc, char **argv) -{ - struct rlimit rl; - int i, c; - struct timeval *tv; - int *cp; - extern char *optarg; - - num_pipes = 100; - num_active = 1; - num_writes = num_pipes; - while ((c = getopt(argc, argv, "n:a:w:")) != -1) { - switch (c) { - case 'n': - num_pipes = atoi(optarg); - break; - case 'a': - num_active = atoi(optarg); - break; - case 'w': - num_writes = atoi(optarg); - break; - default: - fprintf(stderr, "Illegal argument \"%c\"\n", c); - exit(1); - } - } - - rl.rlim_cur = rl.rlim_max = num_pipes * 2 + 50; - if (setrlimit(RLIMIT_NOFILE, &rl) == -1) { - perror("setrlimit"); - exit(1); - } - - events = calloc(num_pipes, sizeof(struct event)); - pipes = calloc(num_pipes * 2, sizeof(int)); - if (events == NULL || pipes == NULL) { - perror("malloc"); - exit(1); - } - - event_init(); - - for (cp = pipes, i = 0; i < num_pipes; i++, cp += 2) { -#ifdef USE_PIPES - if (pipe(cp) == -1) { -#else - if (socketpair(AF_UNIX, SOCK_STREAM, 0, cp) == -1) { -#endif - perror("pipe"); - exit(1); - } - } - - for (i = 0; i < 25; i++) { - tv = run_once(); - if (tv == NULL) - exit(1); - fprintf(stdout, "%ld\n", - tv->tv_sec * 1000000L + tv->tv_usec); - } - - exit(0); -} |