54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
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/*
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* Copyright (C) 2010 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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*/
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#include <algorithm>
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#include <cstring>
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#include <fstream>
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#include <iostream>
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#include <jni.h>
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#include <numeric>
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#include <sstream>
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#include <string>
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#include <tuple>
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#include <unistd.h>
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#include <android/log.h>
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#define LOG(...) __android_log_write(ANDROID_LOG_INFO, "ALLOC-STRESS", __VA_ARGS__)
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using namespace std;
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size_t s = 4 * (1 << 20); // 4 MB
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void *gptr;
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extern "C"
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JNIEXPORT void JNICALL
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Java_com_android_server_cts_device_statsd_StatsdCtsBackgroundService_cmain(JNIEnv* , jobject /* this */)
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{
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long long allocCount = 0;
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while (1) {
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char *ptr = (char *)malloc(s);
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memset(ptr, (int)allocCount >> 10, s);
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for (int i = 0; i < s; i += 4096) {
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*((long long *)&ptr[i]) = allocCount + i;
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}
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std::stringstream ss;
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ss << "total alloc: " << allocCount / (1 << 20);
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LOG(ss.str().c_str());
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gptr = ptr;
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allocCount += s;
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}
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}
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