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767 palkovsky 1
/*
2071 jermar 2
 * Copyright (c) 2006 Ondrej Palkovsky
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#include <test.h>
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#include <mm/slab.h>
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#include <print.h>
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#include <proc/thread.h>
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#include <arch.h>
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#include <mm/frame.h>
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#include <memstr.h>
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#include <synch/condvar.h>
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#include <synch/mutex.h>
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#define ITEM_SIZE 256
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/** Fill memory with 2 caches, when allocation fails,
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 *  free one of the caches. We should have everything in magazines,
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 *  now allocation should clean magazines and allow for full allocation.
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 */
2053 decky 45
static void totalmemtest(bool quiet)
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{
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    slab_cache_t *cache1;
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    slab_cache_t *cache2;
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    int i;
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    void *data1, *data2;
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    void *olddata1 = NULL, *olddata2 = NULL;
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    cache1 = slab_cache_create("cache1_tst", ITEM_SIZE, 0, NULL, NULL, 0);
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    cache2 = slab_cache_create("cache2_tst", ITEM_SIZE, 0, NULL, NULL, 0);
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    if (!quiet)
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        printf("Allocating...");
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767 palkovsky 60
    /* Use atomic alloc, so that we find end of memory */
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    do {
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        data1 = slab_alloc(cache1, FRAME_ATOMIC);
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        data2 = slab_alloc(cache2, FRAME_ATOMIC);
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        if ((!data1) || (!data2)) {
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            if (data1)
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                slab_free(cache1, data1);
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            if (data2)
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                slab_free(cache2, data2);
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            break;
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        }
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        memsetb((uintptr_t) data1, ITEM_SIZE, 0);
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        memsetb((uintptr_t) data2, ITEM_SIZE, 0);
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        *((void **) data1) = olddata1;
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        *((void **) data2) = olddata2;
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        olddata1 = data1;
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        olddata2 = data2;
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    } while (1);
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    if (!quiet) {
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        printf("done.\n");
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        printf("Deallocating cache2...");
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    }
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    /* We do not have memory - now deallocate cache2 */
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    while (olddata2) {
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        data2 = *((void **) olddata2);
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        slab_free(cache2, olddata2);
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        olddata2 = data2;
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    }
2053 decky 90
 
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    if (!quiet) {
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        printf("done.\n");
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        printf("Allocating to cache1...\n");
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    }
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    for (i = 0; i < 30; i++) {
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        data1 = slab_alloc(cache1, FRAME_ATOMIC);
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        if (!data1) {
2053 decky 99
            if (!quiet)
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                printf("Incorrect memory size - use another test.");
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            return;
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        }
2053 decky 103
        memsetb((uintptr_t) data1, ITEM_SIZE, 0);
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        *((void **) data1) = olddata1;
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        olddata1 = data1;
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    }
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    while (1) {
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        data1 = slab_alloc(cache1, FRAME_ATOMIC);
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        if (!data1)
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            break;
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        memsetb((uintptr_t) data1, ITEM_SIZE, 0);
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        *((void **) data1) = olddata1;
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        olddata1 = data1;
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    }
2053 decky 115
 
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    if (!quiet)
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        printf("Deallocating cache1...");
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    while (olddata1) {
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        data1 = *((void **) olddata1);
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        slab_free(cache1, olddata1);
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        olddata1 = data1;
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    }
2053 decky 124
 
125
    if (!quiet) {
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        printf("done.\n");
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        slab_print_list();
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    }
129
 
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    slab_cache_destroy(cache1);
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    slab_cache_destroy(cache2);
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}
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static slab_cache_t *thr_cache;
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static semaphore_t thr_sem;
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static condvar_t thread_starter;
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static mutex_t starter_mutex;
2053 decky 138
static bool sh_quiet;
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#define THREADS 8
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1062 jermar 142
static void slabtest(void *priv)
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{
2028 decky 144
    void *data = NULL, *new;
2053 decky 145
 
1658 vana 146
    thread_detach(THREAD);
2053 decky 147
 
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    mutex_lock(&starter_mutex);
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    condvar_wait(&thread_starter,&starter_mutex);
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    mutex_unlock(&starter_mutex);
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152
    if (!sh_quiet)
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        printf("Starting thread #%llu...\n",THREAD->tid);
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    /* Alloc all */
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    if (!sh_quiet)
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        printf("Thread #%llu allocating...\n", THREAD->tid);
2053 decky 158
 
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    while (1) {
160
        /* Call with atomic to detect end of memory */
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        new = slab_alloc(thr_cache, FRAME_ATOMIC);
162
        if (!new)
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            break;
2053 decky 164
        *((void **) new) = data;
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        data = new;
166
    }
2053 decky 167
 
168
    if (!sh_quiet)
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        printf("Thread #%llu releasing...\n", THREAD->tid);
2053 decky 170
 
773 palkovsky 171
    while (data) {
172
        new = *((void **)data);
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        *((void **) data) = NULL;
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        slab_free(thr_cache, data);
175
        data = new;
176
    }
2053 decky 177
 
178
    if (!sh_quiet)
2216 decky 179
        printf("Thread #%llu allocating...\n", THREAD->tid);
2053 decky 180
 
773 palkovsky 181
    while (1) {
182
        /* Call with atomic to detect end of memory */
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        new = slab_alloc(thr_cache, FRAME_ATOMIC);
184
        if (!new)
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            break;
2053 decky 186
        *((void **) new) = data;
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        data = new;
188
    }
2053 decky 189
 
190
    if (!sh_quiet)
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        printf("Thread #%llu releasing...\n", THREAD->tid);
2053 decky 192
 
773 palkovsky 193
    while (data) {
194
        new = *((void **)data);
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        *((void **) data) = NULL;
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        slab_free(thr_cache, data);
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        data = new;
198
    }
2053 decky 199
 
200
    if (!sh_quiet)
2216 decky 201
        printf("Thread #%llu finished\n", THREAD->tid);
2053 decky 202
 
773 palkovsky 203
    slab_print_list();
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    semaphore_up(&thr_sem);
205
}
206
 
2053 decky 207
static void multitest(int size, bool quiet)
773 palkovsky 208
{
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    /* Start 8 threads that just allocate as much as possible,
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     * then release everything, then again allocate, then release
211
     */
212
    thread_t *t;
213
    int i;
2053 decky 214
 
215
    if (!quiet)
216
        printf("Running stress test with size %d\n", size);
217
 
842 palkovsky 218
    condvar_initialize(&thread_starter);
219
    mutex_initialize(&starter_mutex);
220
 
2053 decky 221
    thr_cache = slab_cache_create("thread_cache", size, 0, NULL, NULL, 0);
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    semaphore_initialize(&thr_sem,0);
2028 decky 223
    for (i = 0; i < THREADS; i++) {  
2053 decky 224
        if (!(t = thread_create(slabtest, NULL, TASK, 0, "slabtest", false))) {
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            if (!quiet)
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                printf("Could not create thread %d\n", i);
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        } else
2028 decky 228
            thread_ready(t);
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    }
842 palkovsky 230
    thread_sleep(1);
231
    condvar_broadcast(&thread_starter);
773 palkovsky 232
 
2028 decky 233
    for (i = 0; i < THREADS; i++)
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        semaphore_down(&thr_sem);
235
 
236
    slab_cache_destroy(thr_cache);
2053 decky 237
    if (!quiet)
238
        printf("Stress test complete.\n");
773 palkovsky 239
}
240
 
2050 decky 241
char * test_slab2(bool quiet)
767 palkovsky 242
{
2053 decky 243
    sh_quiet = quiet;
2028 decky 244
 
2053 decky 245
    if (!quiet)
246
        printf("Running reclaim single-thread test .. pass 1\n");
247
    totalmemtest(quiet);
248
    if (!quiet)
249
        printf("Running reclaim single-thread test .. pass 2\n");
250
    totalmemtest(quiet);
251
    if (!quiet)
252
        printf("Reclaim test OK.\n");
253
 
254
    multitest(128, quiet);
255
    multitest(2048, quiet);
256
    multitest(8192, quiet);
257
 
2028 decky 258
    return NULL;
767 palkovsky 259
}