Files
glorytun/src/bench.c
Adrien Gallouët c93cef5491 Faster sigma
Signed-off-by: Adrien Gallouët <adrien@gallouet.fr>
2019-10-03 15:35:07 +00:00

122 lines
2.9 KiB
C

#include "common.h"
#include <sodium.h>
#include <string.h>
#include <stdio.h>
#include <time.h>
#include <unistd.h>
#include <inttypes.h>
#include "../argz/argz.h"
#include "../mud/aegis256/aegis256.h"
#define NPUBBYTES 32
#define KEYBYTES 32
#define ABYTES 16
int
gt_bench(int argc, char **argv)
{
struct argz bench_argz[] = {
{"aes|chacha", NULL, NULL, argz_option},
{NULL}};
if (argz(bench_argz, argc, argv))
return 1;
if (sodium_init() == -1) {
gt_log("sodium init failed\n");
return 1;
}
int term = isatty(1);
int aes = argz_is_set(bench_argz, "aes");
int chacha = argz_is_set(bench_argz, "chacha");
if (!aegis256_is_available()) {
if (aes) {
gt_log("aes is not available on your platform\n");
return 1;
}
chacha = 1;
}
unsigned char buf[1450 + ABYTES];
unsigned char npub[NPUBBYTES];
unsigned char key[KEYBYTES];
memset(buf, 0, sizeof(buf));
randombytes_buf(npub, sizeof(npub));
randombytes_buf(key, sizeof(key));
if (term) {
printf("cipher: %s\n\n", chacha ? "chacha20poly1305" : "aegis256");
printf(" %5s %9s %9s\n", "size", "mean", "sigma");
printf("---------------------------------\n");
}
int64_t size = 20;
for (int i = 0; !gt_quit && size <= 1450; i++) {
struct {
int64_t d, n, m, v, s;
} s = { .n = 0 };
while (!gt_quit && s.n < 5) {
alarm(1);
gt_alarm = 0;
int64_t bytes = 0;
clock_t base = clock();
while (!gt_alarm && !(bytes >> 32)) {
if (chacha) {
crypto_aead_chacha20poly1305_encrypt(
buf, NULL, buf, size, NULL, 0, NULL, npub, key);
} else {
aegis256_encrypt(buf, NULL, buf, size, NULL, 0, npub, key);
}
bytes += size;
}
int64_t mbps = (8 * bytes * CLOCKS_PER_SEC)
/ ((clock() - base) * 1000 * 1000);
alarm(0);
if (mbps <= 0)
continue;
if (!s.n++) {
s.m = mbps;
s.d = 0;
continue;
}
int64_t d1 = mbps - s.m; s.m += d1 / s.n;
int64_t d2 = mbps - s.m; s.d += d1 * d2;
s.v = s.d / (s.n - 1);
s.s = 1 + (s.v - 1) / 2;
while (s.s && s.s * s.s > s.v)
s.s = (s.s + s.v / s.s) / 2;
if (term) {
printf("\r %5"PRIi64" %9"PRIi64" Mbps %9"PRIi64, size, s.m, s.s);
fflush(stdout);
}
}
if (term) {
printf("\n");
} else {
printf("bench %"PRIi64" %"PRIi64" %"PRIi64"\n", size, s.m, s.s);
}
size += 2 * 11 * 13;
}
return 0;
}