Ios 如何将数千条记录正确加载到域？

我试图使用Realm将大约8000条记录保存到磁盘中，但它阻塞了UI。因此，我使用在后台线程中执行数据保存的

Realm.asyncOpen

问题是，当我试图以这种方式保存大量记录时，CPU使用率为100%

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如何将数千条记录正确加载到域？

在官方演示中尝试保存大量数据的方法：

DispatchQueue(label: "background").async {
  autoreleasepool {
    // Get realm and table instances for this thread
    let realm = try! Realm()

    // Break up the writing blocks into smaller portions
    // by starting a new transaction
    for idx1 in 0..<1000 {
      realm.beginWrite()

      // Add row via dictionary. Property order is ignored.
      for idx2 in 0..<1000 {
        realm.create(Person.self, value: [
          "name": "\(idx1)",
          "birthdate": Date(timeIntervalSince1970: TimeInterval(idx2))
        ])
      }

      // Commit the write transaction
      // to make this data available to other threads
      try! realm.commitWrite()
    }
  }
}

DispatchQueue（标签：“后台”）.async{
自动释放池{
//获取此线程的领域和表实例
让realm=try！realm（）
//将书写块分成更小的部分
//通过启动新事务
对于0..中的idx1，您是否尝试过成批保存数据？例如

—（无效）startImport
{
NSLog（“启动导入”）；
调度异步（调度获取全局队列（调度队列优先级高，0）^{
RLMRealm*realm=[RLMRealm defaultRealm]；
整数批=0；
整数总数=50000；
[realm beginWriteTransaction]；
Feed*newFeed=[[Feed alloc]init]；
[realm addObject:newFeed]；
对于（整数i=0；i

- (void)startImport
{
    NSLog(@"Staring Import");
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), ^{
        RLMRealm *realm = [RLMRealm defaultRealm];
        NSUInteger batch = 0;
        NSUInteger total = 50000;
        [realm beginWriteTransaction];
        Feed *newFeed = [[Feed alloc] init];
        [realm addObject:newFeed];
        for (NSUInteger i = 0; i < total; i++)
        {
            FeedItem *newItem = [[FeedItem alloc] init];
            newItem.feed = newFeed;
            [newFeed.items addObject:newItem];

            batch++;
            if (batch == 100)
            {
                batch = 0;
                [realm commitWriteTransaction];
                NSLog(@"Committed Write Transaction, Saved %@ total items in Realm", @(i+1));
                if (i < (total-1))
                {
                    [realm beginWriteTransaction];
                }
            }
            else if (i == (total-1))
            {
                [realm commitWriteTransaction];
                NSLog(@"Committed Write Transaction, Saved %@ total items in Realm", @(i+1));
            }
        }
    });
}