1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.tradefed.testtype; 17 18 import com.android.ddmlib.IShellOutputReceiver; 19 import com.android.ddmlib.Log; 20 import com.android.ddmlib.MultiLineReceiver; 21 22 import java.text.DecimalFormat; 23 import java.text.ParseException; 24 import java.util.regex.Matcher; 25 import java.util.regex.Pattern; 26 27 /** 28 * A {@link IShellOutputReceiver} that parses the benchmark test data output, collecting metrics on 29 * average time per operation. 30 * <p/> 31 * Looks for the following output 32 * <p/> 33 * <code> 34 * Time per iteration min: X avg: Y max: Z 35 * </code> 36 */ 37 public class NativeBenchmarkTestParser extends MultiLineReceiver { 38 39 private final static String LOG_TAG = "NativeBenchmarkTestParser"; 40 41 // just parse any string 42 private final static String FLOAT_STRING = "\\s*(.*)\\s*"; 43 private final static String COMPLETE_STRING = String.format( 44 "Time per iteration min:%savg:%smax:%s", FLOAT_STRING, FLOAT_STRING, FLOAT_STRING); 45 private final static Pattern COMPLETE_PATTERN = Pattern.compile(COMPLETE_STRING); 46 47 private final String mTestRunName; 48 private boolean mIsCanceled = false; 49 private double mMinOpTime = 0; 50 private double mAvgOpTime = 0; 51 private double mMaxOpTime = 0; 52 53 /** 54 * Creates a {@link NativeBenchmarkTestParser}. 55 * 56 * @param runName the run name. Used for logging purposes. 57 */ NativeBenchmarkTestParser(String runName)58 public NativeBenchmarkTestParser(String runName) { 59 mTestRunName = runName; 60 } 61 62 /** 63 * {@inheritDoc} 64 */ 65 @Override processNewLines(String[] lines)66 public void processNewLines(String[] lines) { 67 for (String line : lines) { 68 parseLine(line); 69 } 70 } 71 parseLine(String line)72 private void parseLine(String line) { 73 Log.d(LOG_TAG, line); 74 Matcher matcher = COMPLETE_PATTERN.matcher(line); 75 if (matcher.find()) { 76 Log.i(LOG_TAG, String.format("Found result for benchmark %s: %s", getRunName(), line)); 77 mMinOpTime = parseDoubleValue(line, matcher.group(1)); 78 mAvgOpTime = parseDoubleValue(line, matcher.group(2)); 79 mMaxOpTime = parseDoubleValue(line, matcher.group(3)); 80 } 81 } 82 parseDoubleValue(String line, String valueString)83 private double parseDoubleValue(String line, String valueString) { 84 try { 85 return Double.parseDouble(valueString); 86 } catch (NumberFormatException e) { 87 // fall through 88 } 89 Log.w(LOG_TAG, String.format("Value was not a double (%s), trying for scientfic", 90 line)); 91 DecimalFormat format = new DecimalFormat("0.0E0"); 92 try { 93 Number num = format.parse(valueString); 94 return num.doubleValue(); 95 } catch (ParseException e) { 96 Log.e(LOG_TAG, String.format("Could not parse double value in (%s)", 97 line)); 98 } 99 return 0; 100 } 101 102 /** 103 * {@inheritDoc} 104 */ 105 @Override isCancelled()106 public boolean isCancelled() { 107 return mIsCanceled; 108 } 109 110 /** 111 * @return The name of the Test Run. 112 */ getRunName()113 public String getRunName() { 114 return mTestRunName; 115 } 116 117 /** 118 * @return the average operation time 119 */ getAvgOperationTime()120 public double getAvgOperationTime() { 121 return mAvgOpTime; 122 } 123 124 /** 125 * @return the minimum operation time 126 */ getMinOperationTime()127 public double getMinOperationTime() { 128 return mMinOpTime; 129 } 130 131 /** 132 * @return the maximum operation time 133 */ getMaxOperationTime()134 public double getMaxOperationTime() { 135 return mMaxOpTime; 136 } 137 } 138