+++ /dev/null
-
- Copyright (c) 2012, The Android Open Source Project
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-
+++ /dev/null
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <sys/time.h>
-#include <sched.h>
-#include <sys/resource.h>
-#include <ctype.h>
-#define USEC_PER_SEC 1000000ULL
-#define MAX_COUNT 1000000000ULL
-#define NUM_INSTS_GARBAGE 18
-
-// Contains information about benchmark options.
-typedef struct {
- int cpu_to_lock;
- int locked_freq;
-} command_data_t;
-
-void usage() {
- printf("--------------------------------------------------------------------------------\n");
- printf("Usage:");
- printf(" crypto [--cpu_to_lock CPU] [--locked_freq FREQ_IN_KHZ]\n\n");
- printf("!!!!!!Lock the desired core to a desired frequency before invoking this benchmark.\n");
- printf(
- "Hint: Set scaling_max_freq=scaling_min_freq=FREQ_IN_KHZ. FREQ_IN_KHZ "
- "can be obtained from scaling_available_freq\n");
- printf("--------------------------------------------------------------------------------\n");
-}
-
-int processOptions(int argc, char **argv, command_data_t *cmd_data) {
- // Initialize the command_flags.
- cmd_data->cpu_to_lock = 0;
- cmd_data->locked_freq = 1;
- for (int i = 1; i < argc; i++) {
- if (argv[i][0] == '-') {
- int *save_value = NULL;
- if (strcmp(argv[i], "--cpu_to_lock") == 0) {
- save_value = &cmd_data->cpu_to_lock;
- } else if (strcmp(argv[i], "--locked_freq") == 0) {
- save_value = &cmd_data->locked_freq;
- } else {
- printf("Unknown option %s\n", argv[i]);
- return -1;
- }
- if (save_value) {
- // Checking both characters without a strlen() call should be
- // safe since as long as the argument exists, one character will
- // be present (\0). And if the first character is '-', then
- // there will always be a second character (\0 again).
- if (i == argc - 1 ||
- (argv[i + 1][0] == '-' && !isdigit(argv[i + 1][1]))) {
- printf("The option %s requires one argument.\n", argv[i]);
- return -1;
- }
- *save_value = (int)strtol(argv[++i], NULL, 0);
- }
- }
- }
- return 0;
-}
-/* Performs encryption on garbage values. In Cortex-A57 r0p1 and later
- * revisions, pairs of dependent AESE/AESMC and AESD/AESIMC instructions are
- * higher performance when adjacent, and in the described order below. */
-void garbage_encrypt() {
- __asm__ __volatile__(
- "aese v0.16b, v4.16b ;"
- "aesmc v0.16b, v0.16b ;"
- "aese v1.16b, v4.16b ;"
- "aesmc v1.16b, v1.16b ;"
- "aese v2.16b, v4.16b ;"
- "aesmc v2.16b, v2.16b ;"
- "aese v0.16b, v5.16b ;"
- "aesmc v0.16b, v0.16b ;"
- "aese v1.16b, v5.16b ;"
- "aesmc v1.16b, v1.16b ;"
- "aese v2.16b, v5.16b ;"
- "aesmc v2.16b, v2.16b ;"
- "aese v0.16b, v6.16b ;"
- "aesmc v0.16b, v0.16b ;"
- "aese v1.16b, v6.16b ;"
- "aesmc v1.16b, v1.16b ;"
- "aese v2.16b, v6.16b ;"
- "aesmc v2.16b, v2.16b ;");
-}
-
-void garbage_decrypt() {
- __asm__ __volatile__(
- "aesd v0.16b, v4.16b ;"
- "aesimc v0.16b, v0.16b ;"
- "aesd v1.16b, v4.16b ;"
- "aesimc v1.16b, v1.16b ;"
- "aesd v2.16b, v4.16b ;"
- "aesimc v2.16b, v2.16b ;"
- "aesd v0.16b, v5.16b ;"
- "aesimc v0.16b, v0.16b ;"
- "aesd v1.16b, v5.16b ;"
- "aesimc v1.16b, v1.16b ;"
- "aesd v2.16b, v5.16b ;"
- "aesimc v2.16b, v2.16b ;"
- "aesd v0.16b, v6.16b ;"
- "aesimc v0.16b, v0.16b ;"
- "aesd v1.16b, v6.16b ;"
- "aesimc v1.16b, v1.16b ;"
- "aesd v2.16b, v6.16b ;"
- "aesimc v2.16b, v2.16b ;");
-}
-
-
-int main(int argc, char **argv) {
- usage();
- command_data_t cmd_data;
-
- if(processOptions(argc, argv, &cmd_data) == -1) {
- usage();
- return -1;
- }
- unsigned long long count = 0;
- struct timeval begin_time, end_time, elapsed_time;
- cpu_set_t cpuset;
- CPU_ZERO(&cpuset);
- CPU_SET(cmd_data.cpu_to_lock, &cpuset);
- if (sched_setaffinity(0, sizeof(cpuset), &cpuset) != 0) {
- perror("sched_setaffinity failed");
- return false;
- }
- gettimeofday(&begin_time, NULL);
- while (count < MAX_COUNT) {
- garbage_encrypt();
- count++;
- }
- gettimeofday(&end_time, NULL);
- timersub(&end_time, &begin_time, &elapsed_time);
- fprintf(stderr, "encrypt: %llu us\n",
- elapsed_time.tv_sec * USEC_PER_SEC + elapsed_time.tv_usec);
- fprintf(stderr, "encrypt instructions: %llu\n",
- MAX_COUNT * NUM_INSTS_GARBAGE);
- fprintf(stderr, "encrypt instructions per second: %f\n",
- (float)(MAX_COUNT * NUM_INSTS_GARBAGE * USEC_PER_SEC) /
- (elapsed_time.tv_sec * USEC_PER_SEC + elapsed_time.tv_usec));
- if (cmd_data.locked_freq != 0) {
- fprintf(stderr, "encrypt instructions per cycle: %f\n",
- (float)(MAX_COUNT * NUM_INSTS_GARBAGE * USEC_PER_SEC) /
- ((elapsed_time.tv_sec * USEC_PER_SEC + elapsed_time.tv_usec) *
- 1000 * cmd_data.locked_freq));
- }
- printf("--------------------------------------------------------------------------------\n");
-
- count = 0;
- gettimeofday(&begin_time, NULL);
- while (count < MAX_COUNT) {
- garbage_decrypt();
- count++;
- }
- gettimeofday(&end_time, NULL);
- timersub(&end_time, &begin_time, &elapsed_time);
- fprintf(stderr, "decrypt: %llu us\n",
- elapsed_time.tv_sec * USEC_PER_SEC + elapsed_time.tv_usec);
- fprintf(stderr, "decrypt instructions: %llu\n",
- MAX_COUNT * NUM_INSTS_GARBAGE);
- fprintf(stderr, "decrypt instructions per second: %f\n",
- (float)(MAX_COUNT * NUM_INSTS_GARBAGE * USEC_PER_SEC) /
- (elapsed_time.tv_sec * USEC_PER_SEC + elapsed_time.tv_usec));
- if (cmd_data.locked_freq != 0) {
- fprintf(stderr, "decrypt instructions per cycle: %f\n",
- (float)(MAX_COUNT * NUM_INSTS_GARBAGE * USEC_PER_SEC) /
- ((elapsed_time.tv_sec * USEC_PER_SEC + elapsed_time.tv_usec) *
- 1000 * cmd_data.locked_freq));
- }
- return 0;
-}
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