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Fix median computation #7

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Fix median computation #7

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3 changes: 3 additions & 0 deletions android/WALT/app/src/main/java/org/chromium/latency/walt/AudioFragment.java
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Expand Up @@ -308,6 +308,9 @@ void finishAndShowStats() {
activity.broadcastManager.unregisterReceiver(onIncomingTimestamp);
activity.clockManager.logDrift();

Utils.sort(deltasJ2N);
Utils.sort(deltas);

activity.logger.log("deltas: " + deltas.toString());
activity.logger.log(String.format(
"Median Java to native latency %.3f ms\nMedian audio latency %.1f ms",
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1 change: 1 addition & 0 deletions android/WALT/app/src/main/java/org/chromium/latency/walt/ScreenResponseFragment.java
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Expand Up @@ -188,6 +188,7 @@ void finishAndShowStats() {
activity.broadcastManager.unregisterReceiver(onIncomingTimestamp);

// Show deltas and the median
Utils.sort(deltas);
activity.logger.log("deltas: " + deltas.toString());
activity.logger.log(String.format(
"Median latency %.1f ms",
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3 changes: 3 additions & 0 deletions android/WALT/app/src/main/java/org/chromium/latency/walt/TapLatencyFragment.java
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Expand Up @@ -226,6 +226,9 @@ private void printStats(int action) {
k2c.add((event.createTime - event.kernelTime) / 1000.);
}

Utils.sort(p2k);
Utils.sort(k2c);

activity.logger.log(p2k.toString());
activity.logger.log(k2c.toString());

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5 changes: 5 additions & 0 deletions android/WALT/app/src/main/java/org/chromium/latency/walt/Utils.java
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Expand Up @@ -17,12 +17,17 @@
package org.chromium.latency.walt;

import java.util.ArrayList;
import java.util.Collections;
import java.util.InputMismatchException;

/**
* Kitchen sink for small utility functions
*/
public class Utils {
public static void sort(ArrayList<Double> list) {
Collections.sort(list);
}

public static double median(ArrayList<Double> lst) {
int len = lst.size();
if (len == 0) {
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