71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <jni.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/time.h>
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double currentTimeMillis()
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{
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struct timeval tv;
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gettimeofday(&tv, (struct timezone *) NULL);
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return tv.tv_sec * 1000.0 + tv.tv_usec / 1000.0;
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}
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extern "C" JNIEXPORT jdouble JNICALL Java_android_dram_cts_MemoryNative_runMemcpy(JNIEnv* env,
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jclass clazz, jint bufferSize, jint repetition)
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{
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char* src = new char[bufferSize];
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char* dst = new char[bufferSize];
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if ((src == NULL) || (dst == NULL)) {
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delete[] src;
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delete[] dst;
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env->ThrowNew(env->FindClass("java/lang/OutOfMemoryError"), "No memory");
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return -1;
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}
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memset(src, 0, bufferSize);
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memset(dst, 0, bufferSize);
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double start = currentTimeMillis();
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for (int i = 0; i < repetition; i++) {
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memcpy(dst, src, bufferSize);
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src[bufferSize - 1] = i & 0xff;
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}
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double end = currentTimeMillis();
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delete[] src;
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delete[] dst;
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return end - start;
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}
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extern "C" JNIEXPORT jdouble JNICALL Java_android_dram_cts_MemoryNative_runMemset(JNIEnv* env,
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jclass clazz, jint bufferSize, jint repetition, jint c)
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{
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char* dst = new char[bufferSize];
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if (dst == NULL) {
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delete[] dst;
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env->ThrowNew(env->FindClass("java/lang/OutOfMemoryError"), "No memory");
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return -1;
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}
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memset(dst, 0, bufferSize);
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double start = currentTimeMillis();
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for (int i = 0; i < repetition; i++) {
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memset(dst, (c + i) & 0xff, bufferSize);
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}
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double end = currentTimeMillis();
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delete[] dst;
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return end - start;
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}
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