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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2009, Digium, Inc.
*
* Russell Bryant <russell@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*! \file
*
* \brief ast_sched performance test module
*
* \author Russell Bryant <russell@digium.com>
*/
/*** MODULEINFO
<defaultenabled>no</defaultenabled>
***/
#include "asterisk.h"
#include <inttypes.h>
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/module.h"
#include "asterisk/cli.h"
#include "asterisk/utils.h"
#include "asterisk/sched.h"
static int sched_cb(const void *data)
{
return 0;
}
static char *handle_cli_sched_test(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
struct sched_context *con;
char *res = CLI_FAILURE;
int id1, id2, id3, wait;
switch (cmd) {
case CLI_INIT:
e->command = "sched test";
e->usage = ""
"Usage: sched test\n"
" Test scheduler entry ordering.\n"
"";
return NULL;
case CLI_GENERATE:
return NULL;
}
if (a->argc != e->args) {
return CLI_SHOWUSAGE;
}
ast_cli(a->fd, "Testing scheduler entry ordering ...\n");
if (!(con = sched_context_create())) {
ast_cli(a->fd, "Test failed - could not create scheduler context\n");
return CLI_FAILURE;
}
/* Add 3 scheduler entries, and then remove them, ensuring that the result
* of ast_sched_wait() looks appropriate at each step along the way. */
if ((wait = ast_sched_wait(con)) != -1) {
ast_cli(a->fd, "ast_sched_wait() should have returned -1, returned '%d'\n",
wait);
goto return_cleanup;
}
if ((id1 = ast_sched_add(con, 100000, sched_cb, NULL)) == -1) {
ast_cli(a->fd, "Failed to add scheduler entry\n");
goto return_cleanup;
}
if ((wait = ast_sched_wait(con)) > 100000) {
ast_cli(a->fd, "ast_sched_wait() should have returned <= 100000, returned '%d'\n",
wait);
goto return_cleanup;
}
if ((id2 = ast_sched_add(con, 10000, sched_cb, NULL)) == -1) {
ast_cli(a->fd, "Failed to add scheduler entry\n");
goto return_cleanup;
}
if ((wait = ast_sched_wait(con)) > 10000) {
ast_cli(a->fd, "ast_sched_wait() should have returned <= 10000, returned '%d'\n",
wait);
goto return_cleanup;
}
if ((id3 = ast_sched_add(con, 1000, sched_cb, NULL)) == -1) {
ast_cli(a->fd, "Failed to add scheduler entry\n");
goto return_cleanup;
}
if ((wait = ast_sched_wait(con)) > 1000) {
ast_cli(a->fd, "ast_sched_wait() should have returned <= 1000, returned '%d'\n",
wait);
goto return_cleanup;
}
if (ast_sched_del(con, id3) == -1) {
ast_cli(a->fd, "Failed to remove scheduler entry\n");
goto return_cleanup;
}
if ((wait = ast_sched_wait(con)) <= 1000) {
ast_cli(a->fd, "ast_sched_wait() should have returned > 1000, returned '%d'\n",
wait);
goto return_cleanup;
}
if (ast_sched_del(con, id2) == -1) {
ast_cli(a->fd, "Failed to remove scheduler entry\n");
goto return_cleanup;
}
if ((wait = ast_sched_wait(con)) <= 10000) {
ast_cli(a->fd, "ast_sched_wait() should have returned > 10000, returned '%d'\n",
wait);
goto return_cleanup;
}
if (ast_sched_del(con, id1) == -1) {
ast_cli(a->fd, "Failed to remove scheduler entry\n");
goto return_cleanup;
}
if ((wait = ast_sched_wait(con)) != -1) {
ast_cli(a->fd, "ast_sched_wait() should have returned -1, returned '%d'\n",
wait);
goto return_cleanup;
}
res = CLI_SUCCESS;
ast_cli(a->fd, "Test passed!\n");
return_cleanup:
sched_context_destroy(con);
return res;
}
static char *handle_cli_sched_bench(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
struct sched_context *con;
struct timeval start;
unsigned int num, i;
int *sched_ids = NULL;
switch (cmd) {
case CLI_INIT:
e->command = "sched benchmark";
e->usage = ""
"Usage: sched test <num>\n"
"";
return NULL;
case CLI_GENERATE:
return NULL;
}
if (a->argc != e->args + 1) {
return CLI_SHOWUSAGE;
}
if (sscanf(a->argv[e->args], "%u", &num) != 1) {
return CLI_SHOWUSAGE;
}
if (!(con = sched_context_create())) {
ast_cli(a->fd, "Test failed - could not create scheduler context\n");
return CLI_FAILURE;
}
if (!(sched_ids = ast_malloc(sizeof(*sched_ids) * num))) {
ast_cli(a->fd, "Test failed - memory allocation failure\n");
goto return_cleanup;
}
ast_cli(a->fd, "Testing ast_sched_add() performance - timing how long it takes "
"to add %u entries at random time intervals from 0 to 60 seconds\n", num);
start = ast_tvnow();
for (i = 0; i < num; i++) {
int when = abs(ast_random()) % 60000;
if ((sched_ids[i] = ast_sched_add(con, when, sched_cb, NULL)) == -1) {
ast_cli(a->fd, "Test failed - sched_add returned -1\n");
goto return_cleanup;
}
}
ast_cli(a->fd, "Test complete - %" PRIi64 " us\n", ast_tvdiff_us(ast_tvnow(), start));
ast_cli(a->fd, "Testing ast_sched_del() performance - timing how long it takes "
"to delete %u entries with random time intervals from 0 to 60 seconds\n", num);
start = ast_tvnow();
for (i = 0; i < num; i++) {
if (ast_sched_del(con, sched_ids[i]) == -1) {
ast_cli(a->fd, "Test failed - sched_del returned -1\n");
goto return_cleanup;
}
}
ast_cli(a->fd, "Test complete - %" PRIi64 " us\n", ast_tvdiff_us(ast_tvnow(), start));
return_cleanup:
sched_context_destroy(con);
if (sched_ids) {
ast_free(sched_ids);
}
return CLI_SUCCESS;
}
static struct ast_cli_entry cli_sched[] = {
AST_CLI_DEFINE(handle_cli_sched_bench, "Benchmark ast_sched add/del performance"),
AST_CLI_DEFINE(handle_cli_sched_test, "Test scheduler entry ordering"),
};
static int unload_module(void)
{
ast_cli_unregister_multiple(cli_sched, ARRAY_LEN(cli_sched));
return 0;
}
static int load_module(void)
{
ast_cli_register_multiple(cli_sched, ARRAY_LEN(cli_sched));
return AST_MODULE_LOAD_SUCCESS;
}
AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "ast_sched performance test module");
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