95 lines
2.2 KiB
C
95 lines
2.2 KiB
C
#include <hawk-xma.h>
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#include <hawk-std.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include "tap.h"
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#define NUM_OPERATIONS 1000000
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#define MAX_ALLOCATIONS 10000
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#define MIN_ALLOC_SIZE 16
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#define MAX_ALLOC_SIZE 1024
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#define OK_X(test) OK(test, #test)
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typedef struct {
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void *ptr;
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size_t size;
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} Allocation;
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size_t random_size()
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{
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return MIN_ALLOC_SIZE + rand() % (MAX_ALLOC_SIZE - MIN_ALLOC_SIZE + 1);
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}
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int main()
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{
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int test_bad = 0;
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hawk_mmgr_t xma_mmgr;
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no_plan();
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hawk_init_xma_mmgr(&xma_mmgr, NUM_OPERATIONS * MAX_ALLOC_SIZE);
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srand((unsigned int)time(NULL));
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Allocation allocations[MAX_ALLOCATIONS] = {0}; // pool of active allocations
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size_t num_active = 0;
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clock_t start_time, end_time;
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double malloc_time = 0.0, free_time = 0.0;
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start_time = clock();
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for (size_t i = 0; i < NUM_OPERATIONS; ++i)
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{
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int do_alloc = (num_active == 0) || (rand() % 2 == 0 && num_active < MAX_ALLOCATIONS);
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if (do_alloc) {
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// Allocate
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size_t size = random_size();
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//void *ptr = malloc(size);
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void *ptr = HAWK_MMGR_ALLOC(&xma_mmgr, size);
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if (!ptr) {
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fprintf(stderr, "malloc failed at operation %zu\n", i);
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break;
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}
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allocations[num_active].ptr = ptr;
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allocations[num_active].size = size;
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++num_active;
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} else {
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// Free a random active allocation
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size_t index = rand() % num_active;
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void *ptr_to_free = allocations[index].ptr;
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clock_t t1 = clock();
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//free(ptr_to_free);
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HAWK_MMGR_FREE(&xma_mmgr, ptr_to_free);
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clock_t t2 = clock();
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free_time += (double)(t2 - t1) / CLOCKS_PER_SEC;
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// Replace with last active allocation
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allocations[index] = allocations[num_active - 1];
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--num_active;
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}
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}
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// Free remaining allocations
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for (size_t i = 0; i < num_active; ++i) {
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//free(allocations[i].ptr);
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HAWK_MMGR_FREE(&xma_mmgr, allocations[i].ptr);
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}
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end_time = clock();
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malloc_time = (double)(end_time - start_time) / CLOCKS_PER_SEC - free_time;
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printf("Performed %d interleaved malloc/free operations\n", NUM_OPERATIONS);
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printf("Total malloc time (estimated): %.6f seconds\n", malloc_time);
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printf("Total free time : %.6f seconds\n", free_time);
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printf("Average time per operation : %.9f seconds\n", (malloc_time + free_time) / NUM_OPERATIONS);
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return 0;
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}
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