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/*
* Copyright (c) 2010, 2011 Richard Braun.
* 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.
*
* 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.
*/
#include <assert.h>
#include <stddef.h>
#include <pthread.h>
#include <stdio.h>
#include "../cpu.h"
#include "../mem.c"
#include "../error.c"
#include "../avltree.c"
#ifdef CONFIG_MEM_USE_PHYS
#include "../phys.c"
#endif /* CONFIG_MEM_USE_PHYS */
#define NTHREADS 4
#define TEST_TIME 60
#define OBJSPERLOOP 100
struct result {
unsigned long allocs;
unsigned long frees;
} __aligned(CPU_L1_SIZE);
struct obj {
unsigned long nr_refs;
char name[16];
};
static void
obj_ctor(void *ptr)
{
struct obj *obj;
obj = ptr;
obj->nr_refs = 0;
}
static struct mem_cache *obj_cache;
static volatile int work;
static struct result results[NTHREADS];
static void *
run(void *arg)
{
struct obj *objs[OBJSPERLOOP];
struct result *result;
int i, id;
result = arg;
id = result - results;
mem_print("started");
while (work) {
for (i = 0; i < OBJSPERLOOP; i++) {
objs[i] = mem_cache_alloc(obj_cache);
result->allocs++;
}
for (i = 0; i < OBJSPERLOOP; i++) {
mem_cache_free(obj_cache, objs[i]);
result->frees++;
}
}
return NULL;
}
int
main(int argc, char *argv[])
{
pthread_t threads[NTHREADS];
unsigned long ops;
int i;
(void)argc;
(void)argv;
mem_setup();
mem_info();
mem_print("Selected cache line size: %u", CPU_L1_SIZE);
mem_print("sizeof(pthread_mutex_t): %zu", sizeof(pthread_mutex_t));
mem_print("sizeof(struct mem_cpu_pool): %zu", sizeof(struct mem_cpu_pool));
mem_print("sizeof(union mem_bufctl): %zu", sizeof(union mem_bufctl));
mem_print("sizeof(struct mem_buftag): %zu", sizeof(struct mem_buftag));
mem_print("sizeof(struct mem_slab): %zu", sizeof(struct mem_slab));
mem_print("sizeof(struct mem_cache): %zu", sizeof(struct mem_cache));
mem_print("sizeof(struct obj): %zu", sizeof(struct obj));
obj_cache = mem_cache_create("obj", sizeof(struct obj), 0,
obj_ctor, NULL, 0);
memset(results, 0, sizeof(results));
work = 1;
for (i = 0; i < NTHREADS; i++)
pthread_create(&threads[i], NULL, run, &results[i]);
sleep(TEST_TIME);
work = 0;
for (i = 0; i < NTHREADS; i++)
pthread_join(threads[i], NULL);
ops = 0;
for (i = 0; i < NTHREADS; i++)
ops += results[i].allocs + results[i].frees;
mem_info();
mem_cache_info(obj_cache);
mem_print("total: %lu ops in %d secs", ops, TEST_TIME);
mem_cache_destroy(obj_cache);
return 0;
}
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