Identifying slow services and processes, Identifying erratic behavior, Operating system services – Lenovo Secure Managed Client User Manual
Page 45: Automatic, Automatic (delayed), Manual / disabled
Descriptions of user-supplied variables in this command are as follows:
v
??? - boot, hibernate, standby, shutdown
v
X - number of runs to be completed
v
(output) - location of output trace files
The output files can be opened with Performance Analyzer (included in WPT).
Identifying slow services and processes
After a trace file has been collected and opened in the Windows Performance
Analyzer, a Services tab details the total time a service takes for a certain action.
There is one service that takes much longer than the rest of the services. Move this
out to Automatic (Delayed) so that it does not affect the critical services at startup.
For additional documentation, go to the following Web address:
Identifying erratic behavior
Applications can cause erratic behavior during normal usage. To collect a trace
while in Windows, run the following command:
xperf –on base+cswitch+latency+power
To stop the trace, run the following command:
xperf –d (output)
Descriptions of the user-inputted variable in this command are as follows:
(output) - location of output trace files
Operating system services
This section includes information about operating system services.
Automatic
Only critical services should have the startup type automatic.
Typical critical services include the following:
v
Mandatory operating system services
v
Antivirus services
Automatic (delayed)
Noncritical services should have the startup type automatic delayed.
Typical noncritical services include third-party services.
Manual / Disabled
All nonessential services have the startup type manual or disabled.
Typical nonessential services include the following:
v
Windows search
v
Windows update
v
Third-party update services
v
Operating system services that are not used in daily functions
Chapter 6. Secure Managed Client image creation and tuning
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