blob: 9856a9b8e2a4ad39fbce318e40b6667c7ff61b69 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
/*
* Simple benchmark command
*
* cl philox-benchmark.c /Ox
*
* gcc philox-benchmark.c -O3 -o philox-benchmark
*
* Requires the Random123 directory containing header files to be located in the
* same directory (not included).
*/
#include "Random123/philox.h"
#include <inttypes.h>
#include <stdio.h>
#include <time.h>
#define N 1000000000
int main() {
philox4x64_ctr_t ctr = {{0, 0, 0, 0}};
philox4x64_key_t key = {{0, 0xDEADBEAF}};
philox4x64_ctr_t out;
uint64_t count = 0, sum = 0;
int i, j;
clock_t begin = clock();
for (i = 0; i < N / 4UL; i++) {
ctr.v[0]++;
out = philox4x64_R(philox4x64_rounds, ctr, key);
for (j = 0; j < 4; j++) {
sum += out.v[j];
count++;
}
}
clock_t end = clock();
double time_spent = (double)(end - begin) / CLOCKS_PER_SEC;
printf("0x%" PRIx64 "\ncount: %" PRIu64 "\n", sum, count);
printf("%" PRIu64 " randoms per second\n",
(uint64_t)(N / time_spent) / 1000000 * 1000000);
}
|
