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s2 crypto: update perf test to use cache comp timer

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Updated S2 hardware accelerated crypto to use the cache compensated timer.

Re-enabled RSA performance test and set lower targets now that results are more stable

Closes: IDF-1174
This commit is contained in:
Marius Vikhammer
2020-03-23 11:30:55 +08:00
parent bd827a4d2f
commit 32fd9d6c63
4 changed files with 25 additions and 28 deletions
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20
components/mbedtls/test/test_aes_perf.c
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@@ -8,16 +8,16 @@
#include "mbedtls/gcm.h"
#include "unity.h"
#include "sdkconfig.h"
#include "esp_timer.h"
#include "esp_heap_caps.h"
#include "test_utils.h"
#include "ccomp_timer.h"
TEST_CASE("mbedtls AES performance", "[aes]")
{
const unsigned CALLS = 256;
const unsigned CALL_SZ = 32 * 1024;
mbedtls_aes_context ctx;
int64_t start, end;
float elapsed_usec;
uint8_t iv[16];
uint8_t key[16];
@@ -30,12 +30,12 @@ TEST_CASE("mbedtls AES performance", "[aes]")
mbedtls_aes_init(&ctx);
mbedtls_aes_setkey_enc(&ctx, key, 128);
start = esp_timer_get_time();
ccomp_timer_start();
for (int c = 0; c < CALLS; c++) {
memset(buf, 0xAA, CALL_SZ);
mbedtls_aes_crypt_cbc(&ctx, MBEDTLS_AES_ENCRYPT, CALL_SZ, iv, buf, buf);
}
end = esp_timer_get_time();
elapsed_usec = ccomp_timer_stop();
/* Sanity check: make sure the last ciphertext block matches
what we expect to see.
@@ -59,9 +59,8 @@ TEST_CASE("mbedtls AES performance", "[aes]")
free(buf);
float usecs = end - start;
// bytes/usec = MB/sec
float mb_sec = (CALL_SZ * CALLS) / usecs;
float mb_sec = (CALL_SZ * CALLS) / elapsed_usec;
printf("Encryption rate %.3fMB/sec\n", mb_sec);
#ifdef CONFIG_MBEDTLS_HARDWARE_AES
// Don't put a hard limit on software AES performance
@@ -74,7 +73,7 @@ TEST_CASE("mbedtls AES GCM performance", "[aes]")
{
const unsigned CALL_SZ = 32 * 1024;
mbedtls_gcm_context ctx;
int64_t start, end;
float elapsed_usec;
unsigned char tag_buf[16];
mbedtls_cipher_id_t cipher = MBEDTLS_CIPHER_ID_AES;
uint8_t iv[16];
@@ -92,12 +91,12 @@ TEST_CASE("mbedtls AES GCM performance", "[aes]")
mbedtls_gcm_init(&ctx);
mbedtls_gcm_setkey( &ctx, cipher, key, 128);
start = esp_timer_get_time();
ccomp_timer_start();
memset(buf, 0xAA, CALL_SZ);
mbedtls_gcm_crypt_and_tag(&ctx, MBEDTLS_AES_ENCRYPT, CALL_SZ, iv, sizeof(iv), aad, sizeof(aad), buf, buf, 16, tag_buf);
end = esp_timer_get_time();
elapsed_usec = ccomp_timer_stop();
/* Sanity check: make sure the last ciphertext block matches
what we expect to see.
@@ -131,9 +130,8 @@ TEST_CASE("mbedtls AES GCM performance", "[aes]")
free(buf);
float usecs = end - start;
// bytes/usec = MB/sec
float mb_sec = CALL_SZ / usecs;
float mb_sec = CALL_SZ / elapsed_usec;
printf("GCM encryption rate %.3fMB/sec\n", mb_sec);
#ifdef CONFIG_MBEDTLS_HARDWARE_GCM