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pdh

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PDH (Performance Data Helper) is a Windows API used by tools like Performance Monitor and Get-Counter to collect performance counter data. Discussions on WindowsForum.com cover issues where PDH functions cause high CPU usage or slow data collection, particularly on Windows Server 2022 where IIS Web Service and Web Service Cache counter sets disappear until IIS is reinstalled. Other threads address memory leaks in Wmiapsrv.exe on Windows Server 2008 R2 and Windows 7 when querying performance data via PDH. These topics are relevant for IT administrators and developers who rely on PDH for monitoring system and application performance.
  1. L

    IIS “Web Service” and “Web Service Cache” performance counter sets disappear on Windows Server 2022 until IIS is reinstalled

    Environment: - Windows Server 2022 - IIS 10.0 Issue Summary: I regularly collect IIS performance metrics using Windows Performance Counters. Initially, the IIS-related counter sets were all available: - Web Service - Web Service Cache - APP_POOL_WAS - WAS_W3WP - W3SVC_W3WP After a few days...
    • Libin
    • Thread
    • iis iis 10.0 pdh performance counters web services windows windows server 2022
    • Replies: 1
    • Forum: Windows Help and Support
  2. News

    Performance Monitor or a PDH function takes longer than expected to collect performance data on a co

    Fixes an issue in which it takes longer than expected to collect performance data when you use Performance Monitor or a PDH function. Additionally, CPU usage is higher than expected while Performance Monitor or the PDH function collects the data. More...
    • News
    • Thread
    • cpu data collection fix high usage issue resolution monitor monitoring pdh performance windows update
    • Replies: 0
    • Forum: Knowledge Base (KB)
  3. News

    Memory leak in Wmiapsrv.exe on a computer that is running Windows Server 2008 R2 or Windows 7

    Fixes a performance issue that occurs when you use a performance monitoring to query performance data on a computer that is running Windows Server 2008 R2 or Windows 7. Specifically, this issue occurs when the tool uses Performance Data Helper (PDH)... More...
    • News
    • Thread
    • data helper fix issues memory leak monitoring pdh performance support windows 7 windows server wmiapsrv
    • Replies: 0
    • Forum: Knowledge Base (KB)
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