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WMI查询在特定计算机（本地）上运行非常慢

[英]WMI query running very slow on a specific machine (local)

原文 2014-09-30 05:41:45 1 1 c#/ windows/ wmi/ wmi-query

I have a WMI query that is SELECT * FROM win32_printer where name = 'My Printer' 我有一个SELECT * FROM win32_printer where name = 'My Printer'的WMI查询， SELECT * FROM win32_printer where name = 'My Printer'

It's running as a local query. 它作为本地查询运行。

I'm testing it through WBEMTest and through the code written in C# and in all cases on a specific machine it is really slow (~1 minute). 我正在通过WBEMTest以及通过用C＃编写的代码对其进行测试，并且在所有情况下，在一台特定的计算机上，它真的很慢（〜1分钟）。 I've checked the WMI Activity trace logs and there are no errors. 我已经检查了WMI活动跟踪日志，没有任何错误。 Does anyone have any more hints on how to find out the problem for this specific machine. 是否有人对如何找到此特定计算机的问题有更多提示。

1 个解决方案

WMI is slow as it is mainly designed for management not performance. WMI很慢，因为它主要是为管理而不是性能而设计的。 There are a lot of things that happen in the background when calling a WMI query. 调用WMI查询时，后台会发生很多事情。 Also queries that return a lot of data entries are slow, however in your particular query I hardly believe that is an issue. 同样，返回大量数据条目的查询速度很慢，但是在您的特定查询中，我几乎不认为这是一个问题。

You can check this blog post for ways to improve your query performance. 您可以查看此博客文章，以了解改善查询性能的方法。