tests/benchmark-crypto-hash.c

   1 /*
   2  * QEMU Crypto hash speed benchmark
   3  *
   4  * Copyright (c) 2017 HUAWEI TECHNOLOGIES CO., LTD.
   5  *
   6  * Authors:
   7  *    Longpeng(Mike) <longpeng2@huawei.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or
  10  * (at your option) any later version.  See the COPYING file in the
  11  * top-level directory.
  12  */
  13 #include "qemu/osdep.h"
  14 #include "qemu/units.h"
  15 #include "crypto/init.h"
  16 #include "crypto/hash.h"
  17
  18 static void test_hash_speed(const void *opaque)
  19 {
  20     size_t chunk_size = (size_t)opaque;
  21     uint8_t *in = NULL, *out = NULL;
  22     size_t out_len = 0;
  23     const size_t total = 2 * GiB;
  24     size_t remain;
  25     struct iovec iov;
  26     int ret;
  27
  28     in = g_new0(uint8_t, chunk_size);
  29     memset(in, g_test_rand_int(), chunk_size);
  30
  31     iov.iov_base = (char *)in;
  32     iov.iov_len = chunk_size;
  33
  34     g_test_timer_start();
  35     remain = total;
  36     while (remain) {
  37         ret = qcrypto_hash_bytesv(QCRYPTO_HASH_ALG_SHA256,
  38                                   &iov, 1, &out, &out_len,
  39                                   NULL);
  40         g_assert(ret == 0);
  41
  42         remain -= chunk_size;
  43     }
  44     g_test_timer_elapsed();
  45
  46     g_print("sha256: ");
  47     g_print("Hash %zu GB chunk size %zu bytes ", total / GiB, chunk_size);
  48     g_print("%.2f MB/sec ", (double)total / MiB / g_test_timer_last());
  49
  50     g_free(out);
  51     g_free(in);
  52 }
  53
  54 int main(int argc, char **argv)
  55 {
  56     size_t i;
  57     char name[64];
  58
  59     g_test_init(&argc, &argv, NULL);
  60     g_assert(qcrypto_init(NULL) == 0);
  61
  62     for (i = 512; i <= 64 * KiB; i *= 2) {
  63         memset(name, 0 , sizeof(name));
  64         snprintf(name, sizeof(name), "/crypto/hash/speed-%zu", i);
  65         g_test_add_data_func(name, (void *)i, test_hash_speed);
  66     }
  67
  68     return g_test_run();
  69 }