| /* |
| * 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. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * 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. |
| */ |
| |
| #include <jni.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/time.h> |
| |
| double currentTimeMillis() |
| { |
| struct timeval tv; |
| gettimeofday(&tv, (struct timezone *) NULL); |
| return tv.tv_sec * 1000.0 + tv.tv_usec / 1000.0; |
| } |
| |
| extern "C" JNIEXPORT jdouble JNICALL Java_android_dram_cts_MemoryNative_runMemcpy(JNIEnv* env, |
| jclass clazz, jint bufferSize, jint repetition) |
| { |
| char* src = new char[bufferSize]; |
| char* dst = new char[bufferSize]; |
| if ((src == NULL) || (dst == NULL)) { |
| delete[] src; |
| delete[] dst; |
| env->ThrowNew(env->FindClass("java/lang/OutOfMemoryError"), "No memory"); |
| return -1; |
| } |
| memset(src, 0, bufferSize); |
| memset(dst, 0, bufferSize); |
| double start = currentTimeMillis(); |
| for (int i = 0; i < repetition; i++) { |
| memcpy(dst, src, bufferSize); |
| src[bufferSize - 1] = i & 0xff; |
| } |
| double end = currentTimeMillis(); |
| delete[] src; |
| delete[] dst; |
| return end - start; |
| } |
| |
| extern "C" JNIEXPORT jdouble JNICALL Java_android_dram_cts_MemoryNative_runMemset(JNIEnv* env, |
| jclass clazz, jint bufferSize, jint repetition, jint c) |
| { |
| char* dst = new char[bufferSize]; |
| if (dst == NULL) { |
| delete[] dst; |
| env->ThrowNew(env->FindClass("java/lang/OutOfMemoryError"), "No memory"); |
| return -1; |
| } |
| memset(dst, 0, bufferSize); |
| double start = currentTimeMillis(); |
| for (int i = 0; i < repetition; i++) { |
| memset(dst, (c + i) & 0xff, bufferSize); |
| } |
| double end = currentTimeMillis(); |
| delete[] dst; |
| return end - start; |
| } |
| |