我找到了许多来源来获取每个进程的CPU使用率.一般来说,有很多方法可以获得进程的CPU使用率.
FirstWay:
对于远程进程监视(我的方案是远程监视),percentprocessortime始终显示0到100+的值.由于系统中有多个处理器,因此会发生这种情况.它可以使用percentprocessortime/processorcount计算.
问题首先:
我可以在wmi explorer中读取percentprocessortime,它显示的所有值都是0或100,只是不是这个值.这个值是对的吗?或者它对监测价值有用吗?
第二种方式:
对于PerformanceCounter类监视,它只能在本地完成.所以我不能用这个.是否有可能将其用于远程?
第三种方式:
(这里使用的公式最大的困惑.)这个计算是由PerformanceCounter类或wmi的win32_process类进行的.有些人说使用以下方法来计算性能计数器
考虑单CPU和
(处理器\%处理器时间)= 10%
(处理器\%用户时间)= 8%
(处理器\%特权时间)= 2%
(进程\%处理器时间\您的应用程序)= 80%
您的应用程序使用80%(处理器\%用户时间),即(8*.8)= CPU的6.4%.
更多参考这里.
通过使用以下公式从win32_process计算usermodetime和kernelmodetime
DateTime firstSample, secondSample;
firstSample = DateTime.Now;
queryObj.Get();
//get cpu usage
ulong u_oldCPU = (ulong)queryObj.Properties["UserModeTime"].Value
+(ulong)queryObj.Properties["KernelModeTime"].Value;
//sleep to create interval
System.Threading.Thread.Sleep(1000);
//refresh object
secondSample = DateTime.Now;
queryObj.Get();
//get new usage
ulong u_newCPU = (ulong)queryObj.Properties["UserModeTime"].Value
+ (ulong)queryObj.Properties["KernelModeTime"].Value;
decimal msPassed = Convert.ToDecimal(
(secondSample - firstSample).TotalMilliseconds);
//formula to get CPU ussage
if (u_newCPU …Run Code Online (Sandbox Code Playgroud) 当我执行以下代码时会导致错误,请帮我解决此问题.
class MySample
{
public static void Main()
{
string eventLogName = "Security";
string sourceName = "BTHUSB";
string machineName = "v.i.com";
EventLog eventLog;
eventLog = new EventLog();
eventLog.Log = eventLogName;
eventLog.Source = sourceName;
eventLog.MachineName = machineName;
foreach (EventLogEntry log in eventLog.Entries.Cast<EventLogEntry>().Reverse())// Entries.Cast<EventLogEntry>().Reverse
{
Console.WriteLine(") Entry type: {0} , Category: {1}, Data: {2}, ID: {3}, Source: {4} \n", log.EntryType, log.TimeWritten, log.EventID, log.InstanceId, log.Source);
}
}
}
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错误是,
Run Code Online (Sandbox Code Playgroud)Unhandled Exception: System.IO.IOException: The network path was not found. at Microsoft.Win32.RegistryKey.Win32ErrorStatic(Int32 errorCode, String str) …
我有一些设置的数据表,
$(tblCategory).dataTable({
"bPaging": true,
"sPaginationType": "full_numbers", //
"bPaginate": false, // shows both next prvious and show 10,20,30 entries
"sdom": 't',
"bprocessing": false, //
"sAjaxSource": "PM_MasterHelper.ashx?m=pmcfl&UserCode="+UserCode,
"bFilter": false, // search btn avail
"bDestroy": true
}
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现在,当我单击html输入按钮时,我想更改或添加“ bInfo”:true,“ bPaginate”:true之类的设置。
请帮助我实现这一目标。
尝试1:我尝试了以下方法,但它不会影响数据表。
oTable = $("tblCategory").dataTable();
var oSettings = oTable.fnSettings();
oSettings.bInfo= true;
oSettings.bPaginate = true;
Run Code Online (Sandbox Code Playgroud) 当我运行以下代码时
ConnectionOptions options = new ConnectionOptions();
options.EnablePrivileges = true;
options.Impersonation = ImpersonationLevel.Impersonate;
options.Authentication = AuthenticationLevel.Packet;
options.Authority = "ntdlmdomain:InsTIL.com";
options.Username = "instil" + @"\" + "admin";
options.Password = "Pwd";
ManagementScope scope= new ManagementScope(string.Format(@"\\172.16.2.171\root\cimv2"),options);
scope.Connect();
if (scope.IsConnected == true)
{
Console.WriteLine("Connection Succeeded");
}
else
{
Console.WriteLine("Connection Failed");
}
ObjectQuery query = new ObjectQuery("Select * from win32_operatingsystem");
ManagementObjectSearcher searcher = new ManagementObjectSearcher(scope, query);
ManagementObjectCollection querycollection = searcher.Get();
foreach (ManagementObject mobj in querycollection)
{
Console.WriteLine("Computer name: {0}", mobj["csname"]);
Console.WriteLine("Windows Directory : {0}", mobj["WindowsDirectory"]);
Console.WriteLine("Operating …Run Code Online (Sandbox Code Playgroud) wmi"20061101185842.000000-000"中eventlog时间生成值的含义是什么?
当我使用Windows事件查看器时,它将日期和时间格式设置为"2/13/2013 4:05:15 PM",但是当我在win32_NTLogEvent中访问它时,它将格式设置为"20061101185842.000000-000".
请清除我的怀疑......
提前致谢...