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#include "test/jemalloc_test.h"
#include "test/bench.h"
#define MIBLEN 8
static size_t mib[MIBLEN];
static size_t miblen = MIBLEN;
#define TINY_BATCH 10
#define TINY_BATCH_ITER (10 * 1000 * 1000)
#define HUGE_BATCH (1000 * 1000)
#define HUGE_BATCH_ITER 100
#define LEN (100 * 1000 * 1000)
static void *batch_ptrs[LEN];
static size_t batch_ptrs_next = 0;
static void *item_ptrs[LEN];
static size_t item_ptrs_next = 0;
#define SIZE 7
typedef struct batch_alloc_packet_s batch_alloc_packet_t;
struct batch_alloc_packet_s {
void **ptrs;
size_t num;
size_t size;
int flags;
};
static void
batch_alloc_wrapper(size_t batch) {
batch_alloc_packet_t batch_alloc_packet =
{batch_ptrs + batch_ptrs_next, batch, SIZE, 0};
size_t filled;
size_t len = sizeof(size_t);
assert_d_eq(mallctlbymib(mib, miblen, &filled, &len,
&batch_alloc_packet, sizeof(batch_alloc_packet)), 0, "");
assert_zu_eq(filled, batch, "");
}
static void
item_alloc_wrapper(size_t batch) {
for (size_t i = item_ptrs_next, end = i + batch; i < end; ++i) {
item_ptrs[i] = malloc(SIZE);
}
}
static void
release_and_clear(void **ptrs, size_t len) {
for (size_t i = 0; i < len; ++i) {
void *p = ptrs[i];
assert_ptr_not_null(p, "allocation failed");
sdallocx(p, SIZE, 0);
ptrs[i] = NULL;
}
}
static void
batch_alloc_without_free(size_t batch) {
batch_alloc_wrapper(batch);
batch_ptrs_next += batch;
}
static void
item_alloc_without_free(size_t batch) {
item_alloc_wrapper(batch);
item_ptrs_next += batch;
}
static void
batch_alloc_with_free(size_t batch) {
batch_alloc_wrapper(batch);
release_and_clear(batch_ptrs + batch_ptrs_next, batch);
batch_ptrs_next += batch;
}
static void
item_alloc_with_free(size_t batch) {
item_alloc_wrapper(batch);
release_and_clear(item_ptrs + item_ptrs_next, batch);
item_ptrs_next += batch;
}
static void
compare_without_free(size_t batch, size_t iter,
void (*batch_alloc_without_free_func)(void),
void (*item_alloc_without_free_func)(void)) {
assert(batch_ptrs_next == 0);
assert(item_ptrs_next == 0);
assert(batch * iter <= LEN);
for (size_t i = 0; i < iter; ++i) {
batch_alloc_without_free_func();
item_alloc_without_free_func();
}
release_and_clear(batch_ptrs, batch_ptrs_next);
batch_ptrs_next = 0;
release_and_clear(item_ptrs, item_ptrs_next);
item_ptrs_next = 0;
compare_funcs(0, iter,
"batch allocation", batch_alloc_without_free_func,
"item allocation", item_alloc_without_free_func);
release_and_clear(batch_ptrs, batch_ptrs_next);
batch_ptrs_next = 0;
release_and_clear(item_ptrs, item_ptrs_next);
item_ptrs_next = 0;
}
static void
compare_with_free(size_t batch, size_t iter,
void (*batch_alloc_with_free_func)(void),
void (*item_alloc_with_free_func)(void)) {
assert(batch_ptrs_next == 0);
assert(item_ptrs_next == 0);
assert(batch * iter <= LEN);
for (size_t i = 0; i < iter; ++i) {
batch_alloc_with_free_func();
item_alloc_with_free_func();
}
batch_ptrs_next = 0;
item_ptrs_next = 0;
compare_funcs(0, iter,
"batch allocation", batch_alloc_with_free_func,
"item allocation", item_alloc_with_free_func);
batch_ptrs_next = 0;
item_ptrs_next = 0;
}
static void
batch_alloc_without_free_tiny() {
batch_alloc_without_free(TINY_BATCH);
}
static void
item_alloc_without_free_tiny() {
item_alloc_without_free(TINY_BATCH);
}
TEST_BEGIN(test_tiny_batch_without_free) {
compare_without_free(TINY_BATCH, TINY_BATCH_ITER,
batch_alloc_without_free_tiny, item_alloc_without_free_tiny);
}
TEST_END
static void
batch_alloc_with_free_tiny() {
batch_alloc_with_free(TINY_BATCH);
}
static void
item_alloc_with_free_tiny() {
item_alloc_with_free(TINY_BATCH);
}
TEST_BEGIN(test_tiny_batch_with_free) {
compare_with_free(TINY_BATCH, TINY_BATCH_ITER,
batch_alloc_with_free_tiny, item_alloc_with_free_tiny);
}
TEST_END
static void
batch_alloc_without_free_huge() {
batch_alloc_without_free(HUGE_BATCH);
}
static void
item_alloc_without_free_huge() {
item_alloc_without_free(HUGE_BATCH);
}
TEST_BEGIN(test_huge_batch_without_free) {
compare_without_free(HUGE_BATCH, HUGE_BATCH_ITER,
batch_alloc_without_free_huge, item_alloc_without_free_huge);
}
TEST_END
static void
batch_alloc_with_free_huge() {
batch_alloc_with_free(HUGE_BATCH);
}
static void
item_alloc_with_free_huge() {
item_alloc_with_free(HUGE_BATCH);
}
TEST_BEGIN(test_huge_batch_with_free) {
compare_with_free(HUGE_BATCH, HUGE_BATCH_ITER,
batch_alloc_with_free_huge, item_alloc_with_free_huge);
}
TEST_END
int main(void) {
assert_d_eq(mallctlnametomib("experimental.batch_alloc", mib, &miblen),
0, "");
return test_no_reentrancy(
test_tiny_batch_without_free,
test_tiny_batch_with_free,
test_huge_batch_without_free,
test_huge_batch_with_free);
}
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