Win32_PerfRawData class

The performance counter class Win32_PerfRawData is the abstract base class for all concrete raw performance counter classes. To appear in System Monitor, performance counter classes must be added to the root\cimv2 namespace and derived from Win32_PerfRawData. Data in these classes are provided by the high-performance Performance Counter Provider.

The following properties are inherited when a class is derived from Win32_PerfRawData:

  • Timestamp_PerfTime
  • Timestamp_Sys100NS
  • Timestamp_Object
  • Frequency_PerfTime
  • Frequency_Sys100NS
  • Frequency_Object

In each case, the properties must be filled out by the provider or the class cannot be displayed in System Monitor. These properties are used to compute counter type formulas by consumers of performance data.

The following syntax is simplified from MOF code and shows all inherited properties.

Syntax

class Win32_PerfRawData : Win32_Perf
{
  string Caption;
  string Description;
  uint64 Frequency_Object;
  uint64 Frequency_PerfTime;
  uint64 Frequency_Sys100NS;
  string Name;
  uint64 Timestamp_Object;
  uint64 Timestamp_PerfTime;
  uint64 Timestamp_Sys100NS;
};

Members

The Win32_PerfRawData class has these types of members:

Properties

The Win32_PerfRawData class has these properties.

Caption
Data type: string
Access type: Read-only
Qualifiers: MaxLen (64)

Short, textual description for the statistic or metric. This property is inherited from CIM_StatisticalInformation.

Description
Data type: string
Access type: Read-only

Textual description of the statistic or metric. This property is inherited from CIM_StatisticalInformation.

Frequency_Object
Data type: uint64
Access type: Read-only

Frequency, in ticks per second, of the Timestamp_Object property. This property is defined by the provider. This property is inherited from Win32_Perf.

For more information about using uint64 values in scripts, see Scripting in WMI.

Frequency_PerfTime
Data type: uint64
Access type: Read-only

Frequency, in ticks per second, of the Timestamp_Perftime property. A value could be obtained by calling the Windows function QueryPerformanceCounter. This property is inherited from Win32_Perf.

For more information about using uint64 values in scripts, see Scripting in WMI.

Frequency_Sys100NS
Data type: uint64
Access type: Read-only

Frequency, in ticks per second, of the Timestamp_Sys100NS property (10000000). This property is inherited from Win32_Perf.

For more information about using uint64 values in scripts, see Scripting in WMI.

Name
Data type: string
Access type: Read-only
Qualifiers: MaxLen (256)

Label by which the statistic or metric is known.This property is inherited from CIM_StatisticalInformation.

Timestamp_Object
Data type: uint64
Access type: Read-only

Object-defined timestamp. The provider defines this property. This property is inherited from Win32_Perf.

For more information about using uint64 values in scripts, see Scripting in WMI.

Timestamp_PerfTime
Data type: uint64
Access type: Read-only

High-performance counter timestamp. A value could be obtained by calling the Windows function QueryPerformanceCounter. This property is inherited from Win32_Perf.

For more information about using uint64 values in scripts, see Scripting in WMI.

Timestamp_Sys100NS
Data type: uint64
Access type: Read-only

Timestamp value in 100 nanosecond units. This property is inherited from Win32_Perf.

For more information about using uint64 values in scripts, see Scripting in WMI.

Remarks

The Win32_PerfRawData class is derived from Win32_Perf, which is derived from CIM_StatisticalInformation.

All classes derived from Win32_Perf are designed to be used with a refresher object. For more information about how to create and use a refresher object in the C++ programming language, see Accessing Performance Data in C++. For more information about how to create and use a refresher object in a script programming language, see Refreshing WMI Data in Scripts.

Requirements

Minimum supported client

Windows Vista

Minimum supported server

Windows Server 2003

Namespace

\root\CIMV2

DLL

WmiPerfInst.dll;
WbemPerf.dll on Windows Server 2003

See also

Performance Counter Classes
Accessing WMI Preinstalled Performance Classes
WMI Tasks: Performance Monitoring
Accessing Performance Data in Script

 

 

Show:
© 2014 Microsoft