点网:线运行速度太慢，在表达版visual studio2008年？
https://stackoverflow.com/questions/883173
-
22-08-2019 - |
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我正在运行12线。功能，这些线电话是没有锁上的一些对象。但仍然这些线把太多的时间。(16分钟)。每个线程ially分析xml文件，其中运行正常的，如果运行indiviually.是这个问题，因为某些原因相关的最大的线提供的通过表达版或一些阻dn由表达版。
代码的功能。每个线电话是在下面给出。每个线程给予了不同的rssfeed(urladdress)
public static class RssFileReader
{
public static Rss GetRssDocumentData(string rssFeed)
{
Console.WriteLine("thread in RssFileReader: " + Thread.CurrentThread.Name);
IFormatProvider culture = new CultureInfo("fr-FR", true);
Rss rssDocumentObject=new Rss();
XmlDocument documentObj = new XmlDocument();
try
{
documentObj.Load(HttpClient.GetWebResponse(@rssFeed, null, null, 1200000, @"http://www.sahil.com").GetResponseStream());
}
catch(Exception e)
{
e.Source = "RssFileReader:Loading xmldocument object";
throw;
}
try
{
XmlNodeList channelList = documentObj.GetElementsByTagName("channel");
for (int k = 0; k < channelList.Count; k++)
{
rssDocumentObject.ListOfChannel.Add(new Channel());
int noOfItemInChannel = -1;
//XmlNodeList itemList = channelList[k].ChildNodes;
for (int i = 0; i < channelList[k].ChildNodes.Count; i++)
{
switch (channelList[k].ChildNodes[i].Name)
{
case "item":
noOfItemInChannel++;
XmlNodeList xmlChildNodeOfItem = channelList[k].ChildNodes[i].ChildNodes;
//debugging
//Console.WriteLine("Thread Name in item in RssFileReader" + Thread.CurrentThread.Name);
rssDocumentObject.ListOfChannel[k].ListOfItem.Add(new Item());
for (int j = 0; j < xmlChildNodeOfItem.Count; j++)
{
switch (xmlChildNodeOfItem[j].Name)
{
case "title":
rssDocumentObject.ListOfChannel[k].ListOfItem[noOfItemInChannel].ItemTitle.InnerText = xmlChildNodeOfItem[j].InnerText;
break;
case "link":
rssDocumentObject.ListOfChannel[k].ListOfItem[noOfItemInChannel].ItemLink.InnerText = xmlChildNodeOfItem[j].InnerText;
break;
case "description":
rssDocumentObject.ListOfChannel[k].ListOfItem[noOfItemInChannel].ItemDescription.InnerText = xmlChildNodeOfItem[j].InnerText;
break;
case "pubDate":
try
{
string dateTimeTemp = xmlChildNodeOfItem[j].InnerText;
char[] splitCharArray = new char[1];
splitCharArray[0] = ' ';
string[] splitedDateTimeTemp = dateTimeTemp.Split(splitCharArray);
string RFC822 = "ddd,ddMMMyyyyHH:mm:ss";
rssDocumentObject.ListOfChannel[k].ListOfItem[noOfItemInChannel].ItemPubDate.PublicationDate = DateTime.ParseExact(splitedDateTimeTemp[0] + splitedDateTimeTemp[1] + splitedDateTimeTemp[2] + splitedDateTimeTemp[3] + splitedDateTimeTemp[4], RFC822, DateTimeFormatInfo.InvariantInfo, DateTimeStyles.None);
}
//exception not rethrown default date is assigned
catch (Exception e)
{
//Console.WriteLine("Exception while formatting string to datetime in rssFileReader():" + e);
}
break;
case "guid":
rssDocumentObject.ListOfChannel[k].ListOfItem[noOfItemInChannel].ItemGuid.InnerText = xmlChildNodeOfItem[j].InnerText;
break;
}
}
break;
case "title":
rssDocumentObject.ListOfChannel[k].ChannelTitle.InnerText = channelList[k].ChildNodes[i].InnerText;
break;
case "description":
rssDocumentObject.ListOfChannel[k].ChannelDescription.InnerText = channelList[k].ChildNodes[i].InnerText;
break;
case "link":
rssDocumentObject.ListOfChannel[k].ChannelLink.InnerText = channelList[k].ChildNodes[i].InnerText;
break;
case "language":
rssDocumentObject.ListOfChannel[k].ChannelLanguage.InnerText = channelList[k].ChildNodes[i].InnerText;
break;
case "pubDate":
try
{
string dateTimeTempForChannel = channelList[k].ChildNodes[i].InnerText;
char[] splitCharArrayForChannel = new char[1];
splitCharArrayForChannel[0] = ' ';
string[] splitedDateTimeTempForChannel = dateTimeTempForChannel.Split(splitCharArrayForChannel);
string formatStringForChannel = "ddd,ddMMMyyyyHH:mm:ss";
rssDocumentObject.ListOfChannel[k].ChannelPubDate.PublicationDate = DateTime.ParseExact(splitedDateTimeTempForChannel[0] + splitedDateTimeTempForChannel[1] + splitedDateTimeTempForChannel[2] + splitedDateTimeTempForChannel[3] + splitedDateTimeTempForChannel[4], formatStringForChannel, DateTimeFormatInfo.InvariantInfo, DateTimeStyles.None);
}
//exception not rethrown default date is assigned
catch (Exception e)
{
//Console.WriteLine("Exception while formatting string to datetime in rssFileReader():" + e);
}
break;
case "lastBuildDate":
try
{
string dateTimeTempForChannel = channelList[k].ChildNodes[i].InnerText;
char[] splitCharArrayForChannel = new char[1];
splitCharArrayForChannel[0] = ' ';
string formatStringForChannel = "ddd,ddMMMyyyyHH:mm:ss";
string[] splitedDateTimeTempForChannel = dateTimeTempForChannel.Split(splitCharArrayForChannel);
rssDocumentObject.ListOfChannel[k].ChannelLastBuildDate.LastBldDate = DateTime.ParseExact(splitedDateTimeTempForChannel[0] + splitedDateTimeTempForChannel[1] + splitedDateTimeTempForChannel[2] + splitedDateTimeTempForChannel[3] + splitedDateTimeTempForChannel[4], formatStringForChannel, DateTimeFormatInfo.InvariantInfo, DateTimeStyles.None);
}
//exception not rethrown default date is assigned
catch (Exception e)
{
//Console.WriteLine("Exception while formatting string to datetime in rssFileReader():" + e);
}
break;
case "docs":
rssDocumentObject.ListOfChannel[k].ChannelDocs.InnerText = channelList[k].ChildNodes[i].InnerText;
break;
case "generator":
rssDocumentObject.ListOfChannel[k].ChannelGenerator.InnerText = channelList[k].ChildNodes[i].InnerText;
break;
case "managingEditor":
rssDocumentObject.ListOfChannel[k].ChannelManagingEditor.InnerText = channelList[k].ChildNodes[i].InnerText;
break;
case "webMaster":
rssDocumentObject.ListOfChannel[k].ChannelWebMaster.InnerText = channelList[k].ChildNodes[i].InnerText;
break;
case "ttl":
rssDocumentObject.ListOfChannel[k].ChannelTtl.InnerText = channelList[k].ChildNodes[i].InnerText;
break;
}
}
}
}
catch(Exception e)
{
e.Source = "RssFileReader:Reading xml document object data to rss object";
throw;
}
Console.WriteLine(" Thread out RssFilereader :" + Thread.CurrentThread.Name);
return rssDocumentObject;
}
}
注：-调试时我才知道它的时间，同时加载xml文件。是否有任何限制的系统数量的问福汇，他们说的对象？
解决方案 2
，它正在采取时间当我从控制台应用程序运行它进行测试。 原因FO采取很多时间IO因为用于调试的打印语句的阻断。
其他提示
如果你使用的网络要求相同服务器，这些都是受限制的默认情况下为两个连接在一段时间。
你是那无法处置的反应和响应流，这意味着它将等待，直到它的垃圾收集到释放的连接使用其他地方。改变你的装载码：
try
{
// Removed unnecessary @ signs
using (WebResponse response = HttpClient.GetWebResponse(
rssFeed, null, null, 1200000, "http://www.sahil.com"))
using (Stream responseStream = response.GetResponseStream())
{
documentObj.Load(responseStream);
}
}
catch(Exception e)
{
e.Source = "RssFileReader:Loading xmldocument object";
throw;
}
这是可能的，你只需要关闭的网络响应-该流将会得到照顾的通过关闭的反应，但它是好的，肯定的。
你仍然只得到有两个线程使用连接到同一服务器上在同一时间(默认情况下，对non-ASP.NET;你可以改变自己使用 ServicePointManager.DefaultConnectionLimit 或 connectionManagement 配置文件的元素)，但是至少你不需要等待，同时该连接空闲或等待收集垃圾。
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