1
0
Fork 0
bind9/tests/bench/iterated_hash.c
Daniel Baumann f66ff7eae6
Adding upstream version 1:9.20.9.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-21 13:32:37 +02:00

76 lines
1.9 KiB
C

/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <isc/iterated_hash.h>
#include <isc/random.h>
#include <isc/time.h>
#include <dns/name.h>
static void
time_it(const int count, const int iterations, const unsigned char *salt,
const int saltlen, const unsigned char *in, const int inlen) {
uint8_t out[NSEC3_MAX_HASH_LENGTH] = { 0 };
isc_time_t start, finish;
printf("%d iterations, %d salt length, %d input length: ", iterations,
saltlen, inlen);
fflush(stdout);
start = isc_time_now_hires();
int i = 0;
while (i++ < count) {
isc_iterated_hash(out, 1, iterations, salt, saltlen, in, inlen);
}
finish = isc_time_now_hires();
uint64_t microseconds = isc_time_microdiff(&finish, &start);
printf("%0.2f us per iterated_hash()\n", (double)microseconds / count);
fflush(stdout);
}
int
main(void) {
uint8_t salt[DNS_NAME_MAXWIRE];
uint8_t in[DNS_NAME_MAXWIRE];
size_t saltlen = sizeof(salt);
size_t inlen = sizeof(in);
isc_random_buf(salt, saltlen);
isc_random_buf(in, inlen);
time_it(10000, 150, salt, saltlen, in, inlen);
time_it(10000, 15, salt, saltlen, in, inlen);
time_it(10000, 0, salt, saltlen, in, inlen);
saltlen = 32;
inlen = 32;
time_it(10000, 150, salt, 32, in, inlen);
time_it(10000, 15, salt, 32, in, inlen);
time_it(10000, 0, salt, saltlen, in, inlen);
saltlen = 0;
inlen = 1;
time_it(10000, 150, salt, 32, in, inlen);
time_it(10000, 15, salt, 32, in, inlen);
time_it(10000, 0, salt, saltlen, in, inlen);
}