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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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11
components/mbedtls/test/test_sha_perf.c
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@@ -6,17 +6,17 @@
#include "mbedtls/sha256.h"
#include "unity.h"
#include "sdkconfig.h"
#include "esp_timer.h"
#include "esp_heap_caps.h"
#include "test_utils.h"
#include "sodium/utils.h"
#include "ccomp_timer.h"
TEST_CASE("mbedtls SHA performance", "[aes]")
{
const unsigned CALLS = 256;
const unsigned CALL_SZ = 16 * 1024;
mbedtls_sha256_context sha256_ctx;
int64_t start, end;
float elapsed_usec;
unsigned char sha256[32];
// allocate internal memory
@@ -25,13 +25,13 @@ TEST_CASE("mbedtls SHA performance", "[aes]")
memset(buf, 0x55, CALL_SZ);
mbedtls_sha256_init(&sha256_ctx);
start = esp_timer_get_time();
ccomp_timer_start();
TEST_ASSERT_EQUAL(0, mbedtls_sha256_starts_ret(&sha256_ctx, false));
for (int c = 0; c < CALLS; c++) {
TEST_ASSERT_EQUAL(0, mbedtls_sha256_update_ret(&sha256_ctx, buf, CALL_SZ));
}
TEST_ASSERT_EQUAL(0, mbedtls_sha256_finish_ret(&sha256_ctx, sha256));
end = esp_timer_get_time();
elapsed_usec = ccomp_timer_stop();
free(buf);
mbedtls_sha256_free(&sha256_ctx);
@@ -45,9 +45,8 @@ TEST_CASE("mbedtls SHA performance", "[aes]")
TEST_ASSERT_EQUAL_STRING(expected_hash, hash_str);
float usecs = end - start;
// bytes/usec = MB/sec
float mb_sec = (CALL_SZ * CALLS) / usecs;
float mb_sec = (CALL_SZ * CALLS) / elapsed_usec;
printf("SHA256 rate %.3fMB/sec\n", mb_sec);
#ifdef CONFIG_MBEDTLS_HARDWARE_SHA
// Don't put a hard limit on software SHA performance