Question

我正在使用Aws SimpleDb存储我的Android应用程序的数据。使用AWS android SDK，我得到了很晚的响应，有没有办法改进它，在浏览器中，它为我提供300毫秒的数据，它需要大约5到10秒的时间，然后虽然我发送请求仅限40行。

这就是我在做什么。

 private ThreadPoolExecutor threadPool = new ThreadPoolExecutor(poolSize, maxPoolSize,  keepAliveTime, TimeUnit.SECONDS, threadsQueue);

private void getArticles() {

String[] categories = {"kids", "Boys", "Girls",
    "Men", "Women"};

for(final String category : categories) {
runTask(new Runnable() {

  @Override
  public void run() {
    Log.e(TAG, "getting articles for category : " + category);
    String select = "select * from shopDatabase where category = '" + category + "' AND relationType " +
          "= 'none' AND articlePushTime > '2013-04-01 05:46:03.719 GMT+00:00' AND publishDateTime > '2013-04-01 05:46:03.719 GMT+00:00' " +
          " AND score > '0' order by score  desc limit 40";
  SelectRequest selectRequest = new SelectRequest(select);
  selectRequest.setConsistentRead(true);
    List<Item> articles = sdbClient.select(selectRequest).getItems();
    if(articles != null) {
      Logger.log("ERROR", "SQLiteActivity", "articles size is : " + articles.size() + " for category : " + category, runCount);
    } else {
      Logger.log("ERROR", "SQLiteActivity", "articles size is : articles.size() = 0 OR NULL for category : " + category, runCount);
     }
     onDownload.onDownload();
    }
   });
  }
}

public void runTask（Runnable task）{ futures.add（threadPool.submit（任务））; // threadPool.execute（task）; }

我试图对其进行分析，但我发现Unmarshalling需要花费大量时间，并且每次请求都会获得凭据。

记录响应时间：

 04-05 11:39:30.724: E/SQLiteActivity(14448): getting articles for category : kids
 04-05 11:39:49.914: E/SQLiteActivity(14448): articles size is : 40 for category : kids


 04-05 11:39:30.754: E/SQLiteActivity(14448): getting articles for category : Boys
 04-05 11:39:47.644: E/SQLiteActivity(14448): articles size is : 40 for category : Boys


 04-05 11:39:48.964: E/SQLiteActivity(14448): getting articles for category : Girls
 04-05 11:40:02.464: E/SQLiteActivity(14448): articles size is : 40 for category : Girls


 04-05 11:39:49.924: E/SQLiteActivity(14448): getting articles for category : Men
 04-05 11:40:02.724: E/SQLiteActivity(14448): articles size is : 40 for category : Men


 04-05 11:40:02.664: E/SQLiteActivity(14448): getting articles for category : Women
 04-05 11:40:10.024: E/SQLiteActivity(14448): articles size is : 40 for category : Women

Aws SimpleDB，在android中响应缓慢

0 个答案: