import co.aikar.timings.TimingsManager; //导入依赖的package包/类
public LevelTimings(Level level) {
    String name = level.getFolderName() + " - ";

    this.doChunkUnload = TimingsManager.getTiming(name + "doChunkUnload");
    this.doTickPending = TimingsManager.getTiming(name + "doTickPending");
    this.doChunkGC = TimingsManager.getTiming(name + "doChunkGC");
    this.doTick = TimingsManager.getTiming(name + "doTick");

    this.tickChunks = TimingsManager.getTiming(name + "tickChunks");
    this.entityTick = TimingsManager.getTiming(name + "entityTick");
    this.blockEntityTick = TimingsManager.getTiming(name + "blockEntityTick");

    this.syncChunkSendTimer = TimingsManager.getTiming(name + "syncChunkSend");
    this.syncChunkSendPrepareTimer = TimingsManager.getTiming(name + "syncChunkSendPrepare");
    this.syncChunkLoadTimer = TimingsManager.getTiming(name + "syncChunkLoad");
    this.syncChunkLoadDataTimer = TimingsManager.getTiming(name + "syncChunkLoad - Data");
    this.syncChunkLoadEntitiesTimer = TimingsManager.getTiming(name + "syncChunkLoad - Entities");
    this.syncChunkLoadBlockEntitiesTimer = TimingsManager.getTiming(name + "syncChunkLoad - BlockEntities");
}
 

import co.aikar.timings.TimingsManager; //导入依赖的package包/类
@Override
public void handleDataPacket(DataPacket packet) {
    if (!this.isSynapseLogin) {
        super.handleDataPacket(packet);
        return;
    }
    Timing dataPacketTiming = handlePlayerDataPacketTimings.getOrDefault(packet.pid(), TimingsManager.getTiming("SynapseEntry - HandlePlayerDataPacket - " + packet.getClass().getSimpleName()));
    dataPacketTiming.startTiming();

    super.handleDataPacket(packet);

    dataPacketTiming.stopTiming();
    if (!handlePlayerDataPacketTimings.containsKey(packet.pid()))
        handlePlayerDataPacketTimings.put(packet.pid(), dataPacketTiming);

}
 

import co.aikar.timings.TimingsManager; //导入依赖的package包/类
@Override
public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
    if (!isAllowed(sender, command)) {
        sender.sendMessage(org.bukkit.ChatColor.DARK_RED + "Not whitelisted");
        return true;
    }

    try {
        Class.forName(EXPORT_CLASS);
    } catch (ClassNotFoundException e) {
        sender.sendMessage(ChatColor.DARK_RED + "You aren't using PaperSpigot.");
        sender.sendMessage(ChatColor.DARK_RED + "This command is for the new timings (v2) system only");
        sender.sendMessage(ChatColor.DARK_RED + "Please use '/timing' for the old system");
        return true;
    }

    if (!Timings.isTimingsEnabled()) {
        sender.sendMessage(ChatColor.DARK_RED + "The server deactivated timing reports");
        sender.sendMessage(ChatColor.DARK_RED + "Go to paper.yml and activate timings");
        return true;
    }

    EvictingQueue<TimingHistory> history = Reflection.getField(TimingsManager.class, "HISTORY", EvictingQueue.class)
            .get(null);

    TimingHistory lastHistory = history.peek();
    if (lastHistory == null) {
        sender.sendMessage(ChatColor.DARK_RED + "Not enough data collected yet");
        return true;
    }

    List<BaseComponent[]> lines = Lists.newArrayList();
    printTimings(lines, lastHistory);

    Pagination pagination = new Pagination("Paper Timings", lines);
    pagination.send(sender);

    this.plugin.getPaginations().put(sender, pagination);
    return true;
}