More libcore benchmarks (844e9f47) · Commits · e / os / android_frameworks_base

apct-tests/perftests/core/src/android/libcore/regression/IdnPerfTest.java

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		/*
		* Copyright (C) 2022 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.
		*/

		package android.libcore.regression;

		import android.perftests.utils.BenchmarkState;
		import android.perftests.utils.PerfStatusReporter;
		import android.test.suitebuilder.annotation.LargeTest;

		import androidx.test.runner.AndroidJUnit4;

		import org.junit.Rule;
		import org.junit.Test;
		import org.junit.runner.RunWith;

		import java.net.IDN;

		@RunWith(AndroidJUnit4.class)
		@LargeTest
		public class IdnPerfTest {
		@Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();

		@Test
		public void timeToUnicode() {
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		IDN.toASCII("fass.de");
		IDN.toASCII("faß.de");
		IDN.toASCII("fäß.de");
		IDN.toASCII("a\u200Cb");
		IDN.toASCII("öbb.at");
		IDN.toASCII("abc・日本.co.jp");
		IDN.toASCII("日本.co.jp");
		IDN.toASCII("x\u0327\u0301.de");
		IDN.toASCII("σόλοσ.gr");
		}
		}

		@Test
		public void timeToAscii() {
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		IDN.toUnicode("xn--fss-qla.de");
		IDN.toUnicode("xn--n00d.com");
		IDN.toUnicode("xn--bb-eka.at");
		IDN.toUnicode("xn--og-09a.de");
		IDN.toUnicode("xn--53h.de");
		IDN.toUnicode("xn--iny-zx5a.de");
		IDN.toUnicode("xn--abc-rs4b422ycvb.co.jp");
		IDN.toUnicode("xn--wgv71a.co.jp");
		IDN.toUnicode("xn--x-xbb7i.de");
		IDN.toUnicode("xn--wxaikc6b.gr");
		IDN.toUnicode("xn--wxaikc6b.xn--gr-gtd9a1b0g.de");
		}
		}
		}

apct-tests/perftests/core/src/android/libcore/regression/IntConstantDivisionPerfTest.java

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		/*
		* Copyright (C) 2022 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.
		*/

		package android.libcore.regression;

		import android.perftests.utils.BenchmarkState;
		import android.perftests.utils.PerfStatusReporter;
		import android.test.suitebuilder.annotation.LargeTest;

		import androidx.test.runner.AndroidJUnit4;

		import org.junit.Rule;
		import org.junit.Test;
		import org.junit.runner.RunWith;

		@RunWith(AndroidJUnit4.class)
		@LargeTest
		public class IntConstantDivisionPerfTest {
		@Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();

		@Test
		public void timeDivideIntByConstant2() {
		int result = 1;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result /= 2;
		}
		}

		@Test
		public void timeDivideIntByConstant8() {
		int result = 1;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result /= 8;
		}
		}

		@Test
		public void timeDivideIntByConstant10() {
		int result = 1;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result /= 10;
		}
		}

		@Test
		public void timeDivideIntByConstant100() {
		int result = 1;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result /= 100;
		}
		}

		@Test
		public void timeDivideIntByConstant100_HandOptimized() {
		int result = 1;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result = (int) ((0x51eb851fL * result) >>> 37);
		}
		}

		@Test
		public void timeDivideIntByConstant2048() {
		int result = 1;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result /= 2048;
		}
		}

		@Test
		public void timeDivideIntByVariable2() {
		int result = 1;
		int factor = 2;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result /= factor;
		}
		}

		@Test
		public void timeDivideIntByVariable10() {
		int result = 1;
		int factor = 10;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result /= factor;
		}
		}
		}

apct-tests/perftests/core/src/android/libcore/regression/IntConstantMultiplicationPerfTest.java

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		/*
		* Copyright (C) 2022 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.
		*/

		package android.libcore.regression;

		import android.perftests.utils.BenchmarkState;
		import android.perftests.utils.PerfStatusReporter;
		import android.test.suitebuilder.annotation.LargeTest;

		import androidx.test.runner.AndroidJUnit4;

		import org.junit.Rule;
		import org.junit.Test;
		import org.junit.runner.RunWith;

		@RunWith(AndroidJUnit4.class)
		@LargeTest
		public class IntConstantMultiplicationPerfTest {
		@Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();

		@Test
		public void timeMultiplyIntByConstant6() {
		int result = 1;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result *= 6;
		}
		}

		@Test
		public void timeMultiplyIntByConstant7() {
		int result = 1;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result *= 7;
		}
		}

		@Test
		public void timeMultiplyIntByConstant8() {
		int result = 1;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result *= 8;
		}
		}

		@Test
		public void timeMultiplyIntByConstant8_Shift() {
		int result = 1;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result <<= 3;
		}
		}

		@Test
		public void timeMultiplyIntByConstant10() {
		int result = 1;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result *= 10;
		}
		}

		@Test
		public void timeMultiplyIntByConstant10_Shift() {
		int result = 1;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result = (result + (result << 2)) << 1;
		}
		}

		@Test
		public void timeMultiplyIntByConstant2047() {
		int result = 1;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result *= 2047;
		}
		}

		@Test
		public void timeMultiplyIntByConstant2048() {
		int result = 1;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result *= 2048;
		}
		}

		@Test
		public void timeMultiplyIntByConstant2049() {
		int result = 1;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result *= 2049;
		}
		}

		@Test
		public void timeMultiplyIntByVariable10() {
		int result = 1;
		int factor = 10;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result *= factor;
		}
		}

		@Test
		public void timeMultiplyIntByVariable8() {
		int result = 1;
		int factor = 8;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result *= factor;
		}
		}
		}

apct-tests/perftests/core/src/android/libcore/regression/IntConstantRemainderPerfTest.java

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		/*
		* Copyright (C) 2022 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.
		*/

		package android.libcore.regression;

		import android.perftests.utils.BenchmarkState;
		import android.perftests.utils.PerfStatusReporter;
		import android.test.suitebuilder.annotation.LargeTest;

		import androidx.test.runner.AndroidJUnit4;

		import org.junit.Rule;
		import org.junit.Test;
		import org.junit.runner.RunWith;

		@RunWith(AndroidJUnit4.class)
		@LargeTest
		public class IntConstantRemainderPerfTest {
		@Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();

		@Test
		public void timeRemainderIntByConstant2() {
		int result = 1;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result %= 2;
		}
		}

		@Test
		public void timeRemainderIntByConstant8() {
		int result = 1;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result %= 8;
		}
		}

		@Test
		public void timeRemainderIntByConstant10() {
		int result = 1;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result %= 10;
		}
		}

		@Test
		public void timeRemainderIntByConstant100() {
		int result = 1;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result %= 100;
		}
		}

		@Test
		public void timeRemainderIntByConstant2048() {
		int result = 1;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result %= 2048;
		}
		}

		@Test
		public void timeRemainderIntByVariable2() {
		int result = 1;
		int factor = 2;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result %= factor;
		}
		}

		@Test
		public void timeRemainderIntByVariable10() {
		int result = 1;
		int factor = 10;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		result %= factor;
		}
		}
		}

apct-tests/perftests/core/src/android/libcore/regression/IntegerPerfTest.java

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		/*
		* Copyright (C) 2022 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.
		*/

		package android.libcore.regression;

		import android.perftests.utils.BenchmarkState;
		import android.perftests.utils.PerfStatusReporter;

		import org.junit.Rule;
		import org.junit.Test;

		public class IntegerPerfTest {
		@Rule public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();

		@Test
		public void timeLongSignumBranch() {
		int t = 0;
		int i = 0;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		t += signum1(-(++i));
		t += signum1(0);
		t += signum1(i);
		}
		}

		@Test
		public void timeLongSignumBranchFree() {
		int t = 0;
		int i = 0;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		t += signum2(-(++i));
		t += signum2(0);
		t += signum2(i);
		}
		}

		private static int signum1(long v) {
		return v < 0 ? -1 : (v == 0 ? 0 : 1);
		}

		private static int signum2(long v) {
		return ((int) (v >> 63)) \| (int) (-v >>> 63); // Hacker's delight 2-7
		}

		@Test
		public void timeLongBitCount_BitSet() {
		int t = 0;
		int i = 0;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		t += pop((long) ++i);
		}
		}

		private static int pop(long l) {
		int count = popX(l & 0xffffffffL);
		count += popX(l >>> 32);
		return count;
		}

		private static int popX(long x) {
		// BEGIN android-note
		// delegate to Integer.bitCount(i); consider using native code
		// END android-note
		x = x - ((x >>> 1) & 0x55555555);
		x = (x & 0x33333333) + ((x >>> 2) & 0x33333333);
		x = (x + (x >>> 4)) & 0x0f0f0f0f;
		x = x + (x >>> 8);
		x = x + (x >>> 16);
		return (int) x & 0x0000003f;
		}

		@Test
		public void timeLongBitCount_2Int() {
		int t = 0;
		int i = 0;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		t += pop2((long) ++i);
		}
		}

		private static int pop2(long l) {
		int count = Integer.bitCount((int) (l & 0xffffffffL));
		count += Integer.bitCount((int) (l >>> 32));
		return count;
		}

		@Test
		public void timeLongBitCount_Long() {
		int t = 0;
		int i = 0;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		t += Long.bitCount((long) ++i);
		}
		}

		/**
		* Table for Seal's algorithm for Number of Trailing Zeros. Hacker's Delight online, Figure 5-18
		* (http://www.hackersdelight.org/revisions.pdf) The entries whose value is -1 are never
		* referenced.
		*/
		private static final byte[] NTZ_TABLE = {
		32, 0, 1, 12, 2, 6, -1, 13, 3, -1, 7, -1, -1, -1, -1, 14,
		10, 4, -1, -1, 8, -1, -1, 25, -1, -1, -1, -1, -1, 21, 27, 15,
		31, 11, 5, -1, -1, -1, -1, -1, 9, -1, -1, 24, -1, -1, 20, 26,
		30, -1, -1, -1, -1, 23, -1, 19, 29, -1, 22, 18, 28, 17, 16, -1
		};

		private static int numberOfTrailingZerosHD(int i) {
		// Seal's algorithm - Hacker's Delight 5-18
		i &= -i;
		i = (i << 4) + i; // x *= 17
		i = (i << 6) + i; // x *= 65
		i = (i << 16) - i; // x *= 65535
		return NTZ_TABLE[i >>> 26];
		}

		private static int numberOfTrailingZerosOL(int i) {
		return NTZ_TABLE[((i & -i) * 0x0450FBAF) >>> 26];
		}

		@Test
		public void timeNumberOfTrailingZerosHD() {
		int t = 0;
		int i = 0;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		t += numberOfTrailingZerosHD(++i);
		}
		}

		@Test
		public void timeNumberOfTrailingZerosOL() {
		int t = 0;
		int i = 0;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		t += numberOfTrailingZerosOL(++i);
		}
		}

		@Test
		public void timeIntegerValueOf() throws Exception {
		String[] intStrings =
		new String[] {
		"0", "1", "12", "123", "1234", "12345", "123456", "1234567", "12345678"
		};
		int t = 0;
		BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
		while (state.keepRunning()) {
		for (int j = 0; j < intStrings.length; ++j) {
		t += Integer.valueOf(intStrings[j]);
		}
		}
		}
		}