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Events (VSPerfCmd)

The VSPerfCmd.exe Events option controls Event Tracing for Windows (ETW) logging. ETW data is saved to an .etl file that is separate from the profiler data file. The data can be viewed in a report using the VSPerfReport /summary:etw command.

The Events option can be called at any time before the VSPerfCmd Shutdown command is called to stop profiling.

VSPerfCmd.exe /events {On|Off} {Guid|ProviderName} [,Flags[,Level]

On|Off

Starts or stops collecting event data.

Guid

The GUID of the provider control.

ProviderName

The name of the provider that is registered with Windows Management Instrumentation (WMI).

Flags

A "0x"-prefixed hexadecimal flags value that is defined by the event provider.

Level

Specifies the amount of data collected. Level is defined by the event provider.

The Events option understands the following kernel keywords as provider names:

Process

Process events

Thread

Thread events

Image

Image load and unload events

Disk

Disk I/O events

File

File I/O events

Hardfault

Hard page faults

Pagefault

Soft page faults

Network

Network events

Registry

Registry access events

Note that the Kernel Provider can only be enabled. It cannot be disabled, nor can its flags be modified, until the monitor shuts down.

NoteNote:

When CLR ETW events are enabled, additional startup data is also collected in the Trace View report. To exclude startup events from appearing in the report, use the following command:

C:\<path>VSPerfCmd -events on, \".NET Common Language Runtime\", 0x7fffffff, 5
Important noteImportant Note:

If you do not exclude the startup events, then because these events are not listed in the Managed Object Format (MOF) file, they appear as GUIDs in the report. For more information, see this page on the Microsoft Web site: Sample Managed Object Format (MOF) File.

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