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/*
* Copyright (C) 2019 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.
*/
/**
* A test of initialization check costs for AOT.
*/
package com.android.startop.test;
import android.app.Activity;
import java.util.Random;
public class InitCheckOverheadBenchmarks {
public static int mSum;
public static int mSum2;
public static int mStep;
public static int mStep2;
public static int mStartingValue;
static {
Random random = new Random();
mStep = random.nextInt();
mStep2 = random.nextInt();
mStartingValue = random.nextInt();
};
static class OtherClass {
public static int mStep;
public static int mStep2;
public static int mStartingValue;
static {
Random random = new Random();
mStep = random.nextInt();
mStep2 = random.nextInt();
mStartingValue = random.nextInt();
};
};
public static void localStaticFor(int iterationCount) {
for (int i = 0; i < iterationCount; ++i) {
mSum += mStep;
}
}
public static void nonLocalStaticFor(int iterationCount) {
mSum = OtherClass.mStartingValue;
for (int i = 0; i < iterationCount; ++i) {
mSum += OtherClass.mStep;
}
}
public static void localStaticForTwo(int iterationCount) {
for (int i = 0; i < iterationCount; ++i) {
mSum += mStep;
mSum2 += mStep2;
}
}
public static void nonLocalStaticForTwo(int iterationCount) {
mSum = OtherClass.mStartingValue;
for (int i = 0; i < iterationCount; ++i) {
mSum += OtherClass.mStep;
mSum2 += OtherClass.mStep2;
}
}
public static void localStaticDoWhile(int iterationCount) {
int i = 0;
do {
mSum += mStep;
++i;
} while (i < iterationCount);
}
public static void nonLocalStaticDoWhile(int iterationCount) {
mSum = OtherClass.mStartingValue;
int i = 0;
do {
mSum += OtherClass.mStep;
++i;
} while (i < iterationCount);
}
public static void doGC() {
Runtime.getRuntime().gc();
}
// Time limit to run benchmarks in seconds
public static final int TIME_LIMIT = 5;
static void initializeBenchmarks(Activity parent, BenchmarkRunner benchmarks) {
benchmarks.addBenchmark("GC", () -> {
doGC();
});
benchmarks.addBenchmark("InitCheckFor (local)", () -> {
localStaticFor(10000000);
});
benchmarks.addBenchmark("InitCheckFor (non-local)", () -> {
nonLocalStaticFor(10000000);
});
benchmarks.addBenchmark("InitCheckForTwo (local)", () -> {
localStaticForTwo(10000000);
});
benchmarks.addBenchmark("InitCheckForTwo (non-local)", () -> {
nonLocalStaticForTwo(10000000);
});
benchmarks.addBenchmark("InitCheckDoWhile (local)", () -> {
localStaticDoWhile(10000000);
});
benchmarks.addBenchmark("InitCheckDoWhile (non-local)", () -> {
nonLocalStaticDoWhile(10000000);
});
}
}
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