talloc_linear.c

#include <talloc.h>
#include <stdio.h>
#include <time.h>
#include <stdlib.h>
#include <inttypes.h>
 
int main(int argc, char **argv)
{
    uint64_t i, j, max, step;
    clock_t begin, end;
    double time_spent;
    TALLOC_CTX *ctx;
 
    if (argc < 3) {
        printf("Need %s <max> <step>\n", argv[0]);
        return 1;
    }
 
    ctx = talloc_init("main");  
 
    max = strtoul(argv[1], NULL, 10);
    step = strtoul(argv[2], NULL, 10);
 
    printf("Performing %" PRIu64" (%s) allocs\n", max, argv[1]);
    for (i = 0; i <= max; i += j) {
        begin = clock();    
        for (j = 0; j < step; j++) {
            talloc_array(ctx, uint8_t, 1);  
        }
        end = clock();
        time_spent = (double)(end - begin) / CLOCKS_PER_SEC;
        printf("%" PRIu64 ",%f\n", i, time_spent);  
    }
}