1/* 2 * Copyright (C) 2017 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 */ 16package com.android.statsd.loadtest; 17 18import android.annotation.Nullable; 19import android.os.SystemClock; 20import android.util.Log; 21import java.util.regex.Matcher; 22import java.util.regex.Pattern; 23 24/** Parses PSS info from dumpsys meminfo */ 25public class MemInfoParser implements PerfParser { 26 27 private static final Pattern LINE_PATTERN = 28 Pattern.compile("\\s*(\\d*,*\\d*)K:\\s(\\S*)\\s\\.*"); 29 private static final String PSS_BY_PROCESS = "Total PSS by process:"; 30 private static final String TAG = "loadtest.MemInfoParser"; 31 32 private boolean mPssStarted; 33 private boolean mPssEnded; 34 private final long mStartTimeMillis; 35 36 public MemInfoParser(long startTimeMillis) { 37 mStartTimeMillis = startTimeMillis; 38 } 39 40 @Override 41 @Nullable 42 public String parseLine(String line) { 43 if (mPssEnded) { 44 return null; 45 } 46 if (!mPssStarted) { 47 if (line.contains(PSS_BY_PROCESS)) { 48 mPssStarted = true; 49 } 50 return null; 51 } 52 if (line.isEmpty()) { 53 mPssEnded = true; 54 return null; 55 } 56 Matcher lineMatcher = LINE_PATTERN.matcher(line); 57 if (lineMatcher.find() && lineMatcher.group(1) != null && lineMatcher.group(2) != null) { 58 if (lineMatcher.group(2).equals("statsd")) { 59 long timeDeltaMillis = SystemClock.elapsedRealtime() - mStartTimeMillis; 60 return timeDeltaMillis + "," + convertToPss(lineMatcher.group(1)); 61 } 62 } 63 return null; 64 } 65 66 private String convertToPss(String input) { 67 return input.replace(",", ""); 68 } 69} 70