From 00652d85b0228bf70905a4934e88a38471832ac2 Mon Sep 17 00:00:00 2001 From: Srinath Sridharan Date: Tue, 8 Mar 2016 14:54:28 -0800 Subject: [PATCH] Crypto performance benchmark Before running the benchmark do the following: Lock the frequency of the core by setting scaling_min_freq=scaling_max_freq=DESIRED_FREQ Change-Id: Ic291ae4db6a202ea2e968dc6823c61d352eb272d --- crypto-perf/Android.mk | 13 ++++ crypto-perf/NOTICE | 190 +++++++++++++++++++++++++++++++++++++++++++++++++ crypto-perf/crypto.cpp | 170 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 373 insertions(+) create mode 100644 crypto-perf/Android.mk create mode 100644 crypto-perf/NOTICE create mode 100644 crypto-perf/crypto.cpp diff --git a/crypto-perf/Android.mk b/crypto-perf/Android.mk new file mode 100644 index 00000000..f218dca9 --- /dev/null +++ b/crypto-perf/Android.mk @@ -0,0 +1,13 @@ +LOCAL_PATH := $(call my-dir) +ifeq ($(TARGET_ARCH),arm64) +include $(CLEAR_VARS) + +LOCAL_CFLAGS := -O0 +LOCAL_SRC_FILES := crypto.cpp + +LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES) +LOCAL_MODULE_TAGS := debug +LOCAL_MODULE := crypto + +include $(BUILD_EXECUTABLE) +endif diff --git a/crypto-perf/NOTICE b/crypto-perf/NOTICE new file mode 100644 index 00000000..c77f135e --- /dev/null +++ b/crypto-perf/NOTICE @@ -0,0 +1,190 @@ + + Copyright (c) 2012, The Android Open Source Project + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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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; +} -- 2.11.0