tests: crypto: add hash speed benchmark support

This patch add a hash speed benchmark, it helps us to
measure the performance by using "make check-speed" or
using "./tests/benchmark-crypto-hash" directly.

Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>

1 files changed, 67 insertions, 0 deletions

diff --git a/tests/benchmark-crypto-hash.c b/tests/benchmark-crypto-hash.c
new file mode 100644
index 0000000000..6769d2a11b
--- /dev/null
+++ b/tests/benchmark-crypto-hash.c
@@ -0,0 +1,67 @@
+/*
+ * QEMU Crypto hash speed benchmark
+ *
+ * Copyright (c) 2017 HUAWEI TECHNOLOGIES CO., LTD.
+ *
+ * Authors:
+ *    Longpeng(Mike) <longpeng2@huawei.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or
+ * (at your option) any later version.  See the COPYING file in the
+ * top-level directory.
+ */
+#include "qemu/osdep.h"
+#include "crypto/init.h"
+#include "crypto/hash.h"
+
+static void test_hash_speed(const void *opaque)
+{
+    size_t chunk_size = (size_t)opaque;
+    uint8_t *in = NULL, *out = NULL;
+    size_t out_len = 0;
+    double total = 0.0;
+    struct iovec iov;
+    int ret;
+
+    in = g_new0(uint8_t, chunk_size);
+    memset(in, g_test_rand_int(), chunk_size);
+
+    iov.iov_base = (char *)in;
+    iov.iov_len = chunk_size;
+
+    g_test_timer_start();
+    do {
+        ret = qcrypto_hash_bytesv(QCRYPTO_HASH_ALG_SHA256,
+                                  &iov, 1, &out, &out_len,
+                                  NULL);
+        g_assert(ret == 0);
+
+        total += chunk_size;
+    } while (g_test_timer_elapsed() < 5.0);
+
+    total /= 1024 * 1024; /* to MB */
+    g_print("sha256: ");
+    g_print("Testing chunk_size %ld bytes ", chunk_size);
+    g_print("done: %.2f MB in %.2f secs: ", total, g_test_timer_last());
+    g_print("%.2f MB/sec\n", total / g_test_timer_last());
+
+    g_free(out);
+    g_free(in);
+}
+
+int main(int argc, char **argv)
+{
+    size_t i;
+    char name[64];
+
+    g_test_init(&argc, &argv, NULL);
+    g_assert(qcrypto_init(NULL) == 0);
+
+    for (i = 512; i <= (64 * 1204); i *= 2) {
+        memset(name, 0 , sizeof(name));
+        snprintf(name, sizeof(name), "/crypto/hash/speed-%lu", i);
+        g_test_add_data_func(name, (void *)i, test_hash_speed);
+    }
+
+    return g_test_run();
+}