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Android example source code file (LatencyTimer.java)
The LatencyTimer.java Android example source code/* * Copyright (C) 2009 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.os; import android.util.Log; import java.util.HashMap; /** * A class to help with measuring latency in your code. * * Suggested usage: * 1) Instanciate a LatencyTimer as a class field. * private [static] LatencyTimer mLt = new LatencyTimer(100, 1000); * 2) At various points in the code call sample with a string and the time delta to some fixed time. * The string should be unique at each point of the code you are measuring. * mLt.sample("before processing event", System.nanoTime() - event.getEventTimeNano()); * processEvent(event); * mLt.sample("after processing event ", System.nanoTime() - event.getEventTimeNano()); * * @hide */ public final class LatencyTimer { final String TAG = "LatencyTimer"; final int mSampleSize; final int mScaleFactor; volatile HashMap<String, long[]> store = new HashMap Other Android examples (source code examples)Here is a short list of links related to this Android LatencyTimer.java source code file: |
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