我期待着解决我的Windows服务的特定问题。它使用了大约25%的CPU,我认为,对于它必须完成的任务来说,这是非常诚实的方式。如何减少Windows服务器的高CPU使用率?
windows服务包括3个线程,用作filewatcher。如果创建了一个特定类型的文本文件,他们会启动一个存储过程在一个SQL服务器上,具体取决于:..
3 filewatchers,因为有3个文件类型,我必须注意。
这是我目前使用的代码:
watcher.cs:
internal class Watcher
{
private List<FileSystemWatcher> _fileWatcher;
private Regex _regex;
public bool started;
public Watcher()
{
started = false;
_fileWatcher = new List<FileSystemWatcher>();
_regex = new Regex(@"(?<=Anz_)(.*)(.txt*@)(.*)");
initAllWatcher();
}
private void initAllWatcher()
{
// LBH:
var watcher = new FileSystemWatcher();
watcher.Filter = ConfigurationManager.AppSettings["FilterLBH"];
watcher.Path = ConfigurationManager.AppSettings["FilePath"];
watcher.Created += onCreated;
_fileWatcher.Add(watcher);
// LSC:
watcher = new FileSystemWatcher();
watcher.Filter = ConfigurationManager.AppSettings["FilterLSC"];
watcher.Path = ConfigurationManager.AppSettings["FilePath"];
watcher.Created += onCreated;
_fileWatcher.Add(watcher);
// LEM:
watcher = new FileSystemWatcher();
watcher.Filter = ConfigurationManager.AppSettings["FilterLEM"];
watcher.Path = ConfigurationManager.AppSettings["FilePath"];
watcher.Created += onCreated;
_fileWatcher.Add(watcher);
}
public void Run()
{
foreach (var filewatcher in _fileWatcher)
{
filewatcher.EnableRaisingEvents = true;
}
started = true;
Thread.CurrentThread.IsBackground = true;
Thread.CurrentThread.Priority = ThreadPriority.Lowest;
while (started)
{
}
}
private async void onCreated(object Source, FileSystemEventArgs Arg)
{
await execute(Arg);
}
private async Task execute(FileSystemEventArgs Arg)
{
string tablename = _regex.Split(Arg.Name)[1];
string targetDatabase = _regex.Split(Arg.Name)[3];
if (tablename.Equals("") == false)
{
if (targetDatabase.Equals("") == false)
{
using (var dbConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["Connection"].ConnectionString))
{
var command = new SqlCommand(ConfigurationManager.AppSettings["StoredProcedure"], dbConnection);
command.CommandTimeout = dbConnection.ConnectionTimeout;
command.CommandType = CommandType.StoredProcedure;
command.Parameters.Add("@strParDbTabelle", SqlDbType.VarChar).Value = tablename;
command.Parameters.Add("@strParDbSchema", SqlDbType.VarChar).Value = "dbo";
command.Parameters.Add("@strParDbName", SqlDbType.VarChar).Value = targetDatabase;
try
{
await command.ExecuteNonQueryAsync();
}
catch (System.Exception)
{
throw;
}
}
}
}
}
}
的Program.cs:
internal static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
private static void Main()
{
ServiceBase[] ServicesToRun;
ServicesToRun = new ServiceBase[]
{
new BaanJobActiService()
};
ServiceBase.Run(ServicesToRun);
}
}
自从我加入这行我的代码:
Thread.CurrentThread.IsBackground = true;
Thread.CurrentThread.Priority = ThreadPriority.Lowest;
CPU us如果其他进程需要CPU使用率,则年龄会降低到最低程度..目前有帮助,但我认为这不是最终的解决方案。
因此,大概你们中的一个人可以教我,我可以改进什么,可能为什么我必须改变它,以获得更好的表现?!
那太棒了!先谢谢你。 :-)
PS:我知道我的方式初始化三个观察是不是最好的方式,但是这不应该是我认为这一点..
PPS:我实现了查询的执行异步,因为这是非常长的运行队列,没有这个实现,我遇到了超时问题。^^
'while(started){}'是问题所在。把它拿出来。 – stuartd
可能是这样的:while(started) { } – Botonomous
将代码放入后台工作者可能会更好,因此它不会停止发生PC上的其他处理。在控制台应用程序上删除while将删除该块,程序将终止。您可以使用WaitHandler来阻止哪一个会消除while循环不断运行。 – jdweng