2 回答
TA贡献1844条经验 获得超8个赞
我建议迁移到较新的命名空间,因为System.Management
它较旧、速度较慢且无法扩展。您所追求的新框架是Microsoft.Management.Infrastructure
. 以下是Microsoft 文档对此进行了解释以及两者的示例。
所以你会使用这样的东西:
Using Microsoft.Management.Infrastructure;
CimSession Session = CimSession.Create("computer_name");
CimInstance Instance = Session.QueryInstances(@"root\cimv2", "WQL", "SELECT Name FROM Win32_ComputerSystem");
foreach (CimInstance i in Instance){
Console.WriteLine(i.CimInstanceProperties["Name"].Value);
}
或者
Using Microsoft.Management.Infrastructure;
CimSession Session = CimSession.Create("computer_name");
CimInstance Instance = Session.QueryInstances(@"root\cimv2", "WQL", "SELECT Name FROM Win32_ComputerSystem").First();
Console.WriteLine(Instance.CimInstanceProperties["Name"].Value);
我希望这能给你一些新的兔子洞来解决:-D 如果你还需要什么,请告诉我们:)
TA贡献2003条经验 获得超2个赞
我创建了获取流程所有者的最终方法。它仍然不是超级快,但已经足够快了。与我的问题中的上述 WMI 方法相比,速度提升了 60% 以上,我相信仍有改进的空间。
示例:从另一个 VLAN 中的工作站 获取数据(进程所有者、ID、句柄、可执行路径、描述、命令行),但同一网络域且大约具有 1 个 VLAN。200个进程:
使用上面旧的 WMI 方法:大约。7000毫秒
使用以下新方法:大约。2400毫秒
方法:
public struct WMIProcessProperties
{
public string Owner;
public int ID;
}
public static async Task<Dictionary<Process, WMIProcessProperties>> GetWMIProperties(this IEnumerable<Process> processes)
{
Dictionary<Process, WMIProcessProperties> result = new Dictionary<Process, WMIProcessProperties>();
if (processes == null || processes.Count() == 0) { return result; }
string selectQuery = "SELECT Handle, ProcessID FROM Win32_Process";
selectQuery += processes.Count() <= 10 ? string.Format(" WHERE ProcessID = {0}", string.Join(" OR ProcessID = ", processes.Select(p => p.Id))) : string.Empty;
using (CimSession session = await Task.Run(() => CimSession.Create(processes.ElementAt(0).MachineName)))
{
List<CimInstance> instances = await Task.Run(() => session.QueryInstances(@"root\cimv2", "WQL", selectQuery).ToList());
List<Task<WMIProcessProperties>> tasks = new List<Task<WMIProcessProperties>>();
for (int i = 0; i < instances.Count; i++)
{
CimInstance currentInstance = instances[i];
tasks.Add(Task.Run(() =>
{
int id = Convert.ToInt32(currentInstance.CimInstanceProperties["ProcessID"].Value);
string owner;
using (CimMethodResult getOwnerResult = session.InvokeMethod(currentInstance, "GetOwner", null))
{
owner = getOwnerResult.OutParameters["User"]?.Value?.ToString();
}
currentInstance.Dispose();
return new WMIProcessProperties { Owner = owner, ID = id };
}));
}
WMIProcessProperties[] wmiProcessProperties = await Task.WhenAll(tasks).ConfigureAwait(false);
for (int i = 0; i < wmiProcessProperties.Length; i++)
{
result.Add(processes.Single(p => p.Id == wmiProcessProperties[i].ID), wmiProcessProperties[i]);
}
}
return result;
}
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