|  | // Copyright (c) 2022, the R8 project authors. Please see the AUTHORS file | 
|  | // for details. All rights reserved. Use of this source code is governed by a | 
|  | // BSD-style license that can be found in the LICENSE file. | 
|  | package com.android.tools.r8.benchmarks; | 
|  |  | 
|  | import com.android.tools.r8.benchmarks.BenchmarkRunner.ResultMode; | 
|  |  | 
|  | public interface BenchmarkResults { | 
|  | // Append a runtime result. This may be summed or averaged depending on the benchmark set up. | 
|  | void addRuntimeResult(long result); | 
|  |  | 
|  | // Append a code size result. This is always assumed to be identical if called multiple times. | 
|  | void addCodeSizeResult(long result); | 
|  |  | 
|  | // Get the results collection for a "sub-benchmark" when defining a group of benchmarks. | 
|  | // This will throw if called on a benchmark without sub-benchmarks. | 
|  | BenchmarkResults getSubResults(String name); | 
|  |  | 
|  | void printResults(ResultMode resultMode); | 
|  |  | 
|  | static String prettyTime(long nanoTime) { | 
|  | return "" + (nanoTime / 1000000) + " ms"; | 
|  | } | 
|  |  | 
|  | static String prettyMetric(String name, BenchmarkMetric metric, String value) { | 
|  | return name + "(" + metric.name() + "): " + value; | 
|  | } | 
|  | } |