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Diffstat (limited to 'BenchmarkFramework/app/src/main/java/art_benchmarks/jit_aot/Invoke.java')
-rw-r--r-- | BenchmarkFramework/app/src/main/java/art_benchmarks/jit_aot/Invoke.java | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/BenchmarkFramework/app/src/main/java/art_benchmarks/jit_aot/Invoke.java b/BenchmarkFramework/app/src/main/java/art_benchmarks/jit_aot/Invoke.java new file mode 100644 index 0000000..8c0343c --- /dev/null +++ b/BenchmarkFramework/app/src/main/java/art_benchmarks/jit_aot/Invoke.java @@ -0,0 +1,111 @@ +/* + * Copyright (C) 2016 Linaro Limited. + * + * 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. + */ + +/* + * This benchmark is inspired by benchmarks/caffeinemark. + * Original benchmark implements a recursion method which calls itself with invoke-virtual. + * + * This behavior can be different on JIT and AOT mode, because: + * - JIT mode can optimize invoke-virtual with inline cache mechanism. + * - AOT mode has no such optimization. + * + * This benchmark exposes such difference between ART JIT and AOT mode. + */ + +package art_benchmarks.jit_aot; + +public class Invoke { + + public int recursionInvokeVirtual(int i) { + if (i == 0) { + return 0; + } else { + return i + recursionInvokeVirtual(i - 1); + } + } + + public static int recursionInvokeStatic(int i) { + if (i == 0) { + return 0; + } else { + return i + recursionInvokeStatic(i - 1); + } + } + + public final int recursionInvokeFinal(int i) { + if (i == 0) { + return 0; + } else { + return i + recursionInvokeFinal(i - 1); + } + } + + private int recursionInvokePrivate(int i) { + if (i == 0) { + return 0; + } else { + return i + recursionInvokePrivate(i - 1); + } + } + + private static final int recursion_depth = 1000; + + public void timeRecursionInvokeVirtual(int iters) { + for (int i = 0; i < iters; i++) { + recursionInvokeVirtual(recursion_depth); + } + } + + public void timeRecursionInvokeStatic(int iters) { + for (int i = 0; i < iters; i++) { + recursionInvokeStatic(recursion_depth); + } + } + + public void timeRecursionInvokeFinal(int iters) { + for (int i = 0; i < iters; i++) { + recursionInvokeFinal(recursion_depth); + } + } + + public void timeRecursionInvokePrivate(int iters) { + for (int i = 0; i < iters; i++) { + recursionInvokePrivate(recursion_depth); + } + } + + public boolean verify() { + return true; + } + + public static void main(String[] args) { + int rc = 0; + Invoke obj = new Invoke(); + + final long before = System.currentTimeMillis(); + obj.timeRecursionInvokeVirtual(1000); + obj.timeRecursionInvokeStatic(1000); + obj.timeRecursionInvokeFinal(1000); + obj.timeRecursionInvokePrivate(1000); + final long after = System.currentTimeMillis(); + if (!obj.verify()) { + rc++; + } + System.out.println("art_benchmarks/jit_aot/Invoke: " + (after - before)); + + System.exit(rc); + } +} |