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Maximizing Windows 7 Performance: Troubleshooting Tips

WCL316. Maximizing Windows 7 Performance: Troubleshooting Tips. Johan Arwidmark Chief Technical Architect Knowledge Factory. Objectives And Takeaways. Performance is critical Live production system analysis Tools of the trade Inbox tools Windows Performance Toolkit.

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Maximizing Windows 7 Performance: Troubleshooting Tips

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  1. WCL316 Maximizing Windows 7 Performance: Troubleshooting Tips Johan Arwidmark Chief Technical Architect Knowledge Factory

  2. Objectives And Takeaways • Performance is critical • Live production system analysis • Tools of the trade • Inbox tools • Windows Performance Toolkit

  3. Defining Performance • Responsiveness • Unresponsive system  Customer dissatisfaction • Resource utilization • CPU, disk, memory, network, battery • Resources are limited and shared • Good Citizenship • It takes one component to impact system performance

  4. Windows 7 Performance Enhancements • Performance work started with Windows Vista • I/O Models – Caching – Network Protocols • Startup / Shutdown / Resume • Continued to improve in Windows 7 • All of the above... • Superfetch and Readyboost • Device Drivers (Industry / Parallelization) • CPU / Memory Management • Logon time (Redirected folders etc.)

  5. Has anyone ever heard this? Hello IT-Pro…My system is running really slow.Fix it now!

  6. Performance Tools • Windows Inbox Tools • Task Manager, Resource Monitor, Perfmon • Write your own tools to gather data • Event Tracing for Windows (ETW) • Performance Counters

  7. Windows Inbox Tools demo

  8. Performance Tools, continued • Non-Inbox Tools • Windows Performance Toolkit • Sysinternals tools (http://www.sysinternals.com)

  9. Non-Inbox Tools demo

  10. Windows Performance Toolkit • Official kit • Built and used by the Windows organization • Contains Performance Analyzer (WPA) tool suite • Built upon the ETW infrastructure • Allows you to capture and analyze performance traces • Freely available as part of the Windows 7 SDK

  11. Performance Analyzer tool suite • xperf: • Trace capture, processing, and command-line analysis • xperfview: • Visual trace analysis • Xbootmgr (and xbootmgrSleep): • On/Off transition trace capture • hwpower2etw: • TDMS-to-ETL converter • symcachegen: • PDB-to-SymCache generator

  12. Performance Analyzer tool suite demo

  13. The Big Picture XML file XPerfView 5. GUI trace analysis via graphs and summary tables 6. CLI trace analysis via actions 3. Controls logging sessions and enables/disables providers MergedETL file Action System and Symbol Information XPerf Control/Status Control/Status Post Processing 4. Metadata injection Control/Status ETW ETL file 1. Collection of configurable in-memory buffers that is managed by the kernel ETW Session Event Providers 2. Any component that has been instrumented with Event Tracing API Event Providers Control/Status Dataflow

  14. How Performance Analyzer Pull This Off • ETW is the magic behind the curtains • Event Tracing for Windows • Core component since Windows 2000 • High performance, low overhead, highly scalable • ~2.5% CPU usage for sustained rate of 10,000 events/sec on a 2GHz CPU • For details, see “Event Tracing” on MSDN

  15. Disk Usage Case Study #1

  16. Disk Usage Study Summary • Multiple components working well in isolation could impact performance when executed in parallel • Fighting over disk dramatically impacts performance for all involved • Disk seeks can cut throughput by 90% • Schedule all work that can wait as Idle tasks • See Task Scheduler documentation on MSDN

  17. Hardware Device not performing Case Study #2

  18. Hardware Device Case Study Summary • One bad component can disrupt numerous good components • High usage of any single resource can cause performance issues • Spending too much CPU at DPC impacts performance

  19. Summary • Good performance  customer satisfaction • WPT = official perf tools from/for Windows • Performance Analyzer • xperf: Trace capture, processing, and command-line analysis • xperfview:Visual trace analysis • xbootmgr:On/Off transition trace capture

  20. Track Resources • Don’t forget to visit the Cloud Power area within the TLC (Blue Section) to see product demos and speak with experts about the Server & Cloud Platform solutions that help drive your business forward. • You can also find the latest information about our products at the following links: • Cloud Power - http://www.microsoft.com/cloud/ • Private Cloud - http://www.microsoft.com/privatecloud/ • Windows Server - http://www.microsoft.com/windowsserver/ • Windows Azure - http://www.microsoft.com/windowsazure/ • Microsoft System Center - http://www.microsoft.com/systemcenter/ • Microsoft Forefront - http://www.microsoft.com/forefront/

  21. Resources • Connect. Share. Discuss. http://northamerica.msteched.com Learning • Sessions On-Demand & Community • Microsoft Certification & Training Resources www.microsoft.com/teched www.microsoft.com/learning • Resources for IT Professionals • Resources for Developers http://microsoft.com/technet http://microsoft.com/msdn

  22. Complete an evaluation on CommNet and enter to win!

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