Hyper-threading (HT) is the brand name for the technology Intel uses in many of its Xeon 32-bit processors that enables one physical processor core to execute two instruction streams (or threads) concurrently. On an HT machine, when HT is enabled, each physical processor currently presents two “logical” CPU interfaces to the operating system so that […]
Archive for FAQ
What sort of CPU capture ratios can I expect on my Windows machine?
Pretty good ones for the most part, unless you encounter one of several possible problems. Capture ratios deal with the difference between the theory and practice of computer performance monitoring. In theory, since Windows derives all the CPU time measurements from the same data collection mechanism, the following relationship should hold: S Thread(_Total) % Processor […]
What is the most reliable indicator of CPU contention?
Look at a combination of processor utilization and processor queuing. (1) The primary indicator of processor utilization is the % Processor Time Counter in the Processor Object. Note that the _Total instance of the Processor Object is actually the average value over all processors. The System Object in NT 4.0 contains a Counter named % […]
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From the Blog
- Windows Performance and Capacity Planning Challenges in Virtualized Environments
- Defining and Using Machine Groups in the Performance Sentry PDB
- Microsoft’s Hyper-V Performance — Introduction
- Performance Sentry Cumulative Maintenance Released
- Demand Technology Software Announces v2.4 of the Performance Sentry Web Portal
- Performance Sentry VM 2.0 now available
- Performance Sentry supports Windows Server 2012 R2 and Windows 8.1
- New Performance Objects in Windows 8 and Server 2012
- MXG and Performance Sentry for Cost Effective Windows Performance Monitoring
- Performance Sentry supports Windows Server 2012 and Windows 8
- Performance Sentry Performance Database (PDB) Data Model
