MSFN Forum: Trace Windows 7 boot/shutdown/hibernate/standby/resume issues

Jump to content






Icon Latest News Comments


Icon MSFN Statistics

  • Total Posts 802195
  • Total Members 102135
  • Newest Member doc157 
  • Online At Once Record 17869
  • Online Now: 2927



    Icon Recommended Sites

    AskVG.com Bink Filehorse FreewareFiles IT Magazine lunarsoft Where unprofessional journalism looks better OSNN TechLog The Windows Club WinBeta

Trace Windows 7 boot/shutdown/hibernate/standby/resume issues -----

Posted on Dec 08 2009 02:23 AM by MagicAndre1981  in Guides | Viewed 6809 Times 


sessionShutdown sessionID="0" duration="1513">


The value sessionShutdown sessionID="0" shows the servicesShutdownDuration. So you can see which service takes too long to stop.

SystemSession Phase

Quote


What Happens in SystemSession

This phase includes two subphases:
• Preshutdown notification. Windows serially shuts down all services that registered to receive preshutdown notifications. Ordered services—services that have set up the shutdown order of dependent services—are shut down before non-ordered services.
• Shutdown notification. All services that registered to receive shutdown notifications are shut down in parallel.

If all services have not exited after 20 seconds (in Windows Vista) or 12 seconds (in Windows 7), the system continues the shutdown. Processes and services that do not shut down in a timely manner are left running as the system shuts down.

SystemSession Performance Vulnerabilities

In the preshutdown notification subphase, the SCM serializes the waits. Therefore, these services block system shutdown until they exit or until the wait hint time-out expires.
Services are not guaranteed to have enough time to finish all their work in the shutdown notification subphase before the system shuts down.


In both cases expand the node and look at the shutdownDuration value.

It helps you to identify a hanging application are service.

KernelShutdown Phase

Quote


What Happens in KernelShutdown
In the KernelShutdown phase, the rest of the system, including all devices and drivers, is shut down.


To calculate the time spent in KernelShutdown, subtract the time that is required to shut down the system and user sessions from shutdownTime.

In my example:

KernelShutdown = 23184 - 3321 - 1513 = 18350

In this case the 18.35 seconds are very slow. In the you see an entry ZeroHiberFile which takes too long. In this expample the user enabled the Option ClearPageFileAtShutdown under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management to 1. This overrides the hiberbation file with 0 to delete personal data. This causes the huge slowdown. Setting this option to 0 would save 12.64 seconds of shutdown time.

That is all you need to analyze slow shutdown issues.





0 Comments

Page 1 of 1

No comments have been made yet

You do not have permission to leave comments on this article
Page 1 of 1



All trademarks mentioned on this page are the property of their respective owners
Copyright © 2001 - 2013 msfn.org
Privacy Policy