![]() ![]() To see which classes are available to query, consult Microsoft’s list of WMI classes. Enter the PowerShell command, Get-WmiObject, and assign the -Class option to the class of your choice. To access the value of counters within a performance counter set, you can simply run a WMI query for that class. PowerShell is well suited for ad-hoc checks, and it’s straightforward to include them in scripts or pipe their outputs into other commands. In this section we’ll show you how to access WMI performance counters with PowerShell commands. You can access performance counters programmatically by using various tools and libraries (such as packages for Python). You can then query these performance counters in a number of ways, which we’ll explain below.Īccessing performance counters via PowerShell The performance counters will then collect data from different components of IIS, including your worker processes, HTTP.sys, and the IIS request queue. ![]() Run the following PowerShell script to check for the Web Service class on your server host: Win32_PerfFormattedData_W3SVCW3WPCounterProvider_W3SVCW3WPĮnabling the Web Service performance counter classīefore you can query IIS performance counters, you’ll need to make sure they’re enabled.Īll of the performance counters you’ll need to monitor IIS should already be installed on your Windows system, with the exception of the Web Service class. Win32_PerfFormattedData_Counters_HTTPServiceRequestQueues In particular, we’ll look at the performance counters we introduced in Part 1: Name in Performance Monitor We will show you how to collect IIS-related performance counters through PowerShell scripts, the Performance Monitor, and the IIS API. Performance counters report metrics from classes stored within a given IIS host, which makes it possible to query them with multiple techniques. In Part 1, we introduced some performance counter classes that are useful for monitoring the health and performance of IIS. In Windows, performance counters automatically collect data from a particular service, application, or driver, as well as from the operating system itself. We’ll also explain how to use a diagnostic tool to investigate memory leaks and high CPU utilization in your application pools and worker processes. In this post, we’ll show you how to use built-in IIS monitoring tools to access and graph performance counters, configure logging in IIS, and query your logs with Microsoft’s Log Parser Studio. Web service logs: Some metrics, like request latency and the frequency of each URI stem, are only available from HTTP request logs.Performance counters: Performance counters for the IIS web service, along with those for Windows in general, can reveal metrics like the rate of requests per IIS site and the percentage of CPU utilization per worker process.You may recall from Part 1 of this series that IIS exposes metrics in two principal ways:
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