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Win32_PerfRawData_PerfOS_Objects class

The Win32_PerfRawData_PerfOS_Objects raw performance data class provides raw data from performance counters that monitor objects contained by the operating system such as events, mutexes, processes, sections, semaphores, and threads.

This class represents the Objects object in System Monitor. The original data source is the PerfOS performance library. The corresponding formatted data class is Win32_PerfFormattedData_PerfOS_Objects. Data is dynamically provided for this class from the performance library object by the WmiPerfInst provider.

Windows Server 2003 and Windows XP:  WMI data for this class is supplied by the Performance Counter Provider.

The following syntax is simplified from MOF code and shows all inherited properties, including the Frequency and Timestamp properties required for class display in System Monitor. For more information about required property qualifiers, see Property Qualifiers for Performance Counter Classes. For more information about CounterType values, see WMI Performance Counter Types.

Syntax

class Win32_PerfRawData_PerfOS_Objects : Win32_PerfRawData
{
  string Caption;
  string Description;
  uint32 Events;
  uint64 Frequency_Object;
  uint64 Frequency_PerfTime;
  uint64 Frequency_Sys100NS;
  uint32 Mutexes;
  string Name;
  uint32 Processes;
  uint32 Sections;
  uint32 Semaphores;
  uint32 Threads;
  uint64 Timestamp_Object;
  uint64 Timestamp_PerfTime;
  uint64 Timestamp_Sys100NS;
};

Members

The Win32_PerfRawData_PerfOS_Objects class has these types of members:

Properties

The Win32_PerfRawData_PerfOS_Objects class has these properties.

Caption
Data type: string
Access type: Read-only

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.

Events
Data type: uint32
Access type: Read-only
Qualifiers: DisplayName ("Events") , CounterType (65536) , DefaultScale (-1) , PerfDetail (300)

Number of events in the computer at the time of data collection. This is an instantaneous count, not a average over the time interval. An event is used when two or more threads wish to synchronize execution.

Frequency_Object
Data type: uint64
Access type: Read-only

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

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

Mutexes
Data type: uint32
Access type: Read-only
Qualifiers: DisplayName ("Mutexes") , CounterType (65536) , DefaultScale (0) , PerfDetail (300)

Count of the number of mutexes in the computer at the time of data collection. This is an instantaneous count, not an average over the time interval. Mutexes are used by threads to ensure that only one thread is executing a section of code.

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

Label by which the statistic or metric is known. When sub-classed, the property can be overridden to be a key property. This property is inherited from CIM_StatisticalInformation.

Processes
Data type: uint32
Access type: Read-only
Qualifiers: DisplayName ("Processes") , PerfDefault, CounterType (65536) , DefaultScale (0) , PerfDetail (100)

Number of processes in the computer at the time of data collection. Notice that this is an instantaneous count, not an average over the time interval. Each process represents the running of a program.

Sections
Data type: uint32
Access type: Read-only
Qualifiers: DisplayName ("Sections") , CounterType (65536) , DefaultScale (-1) , PerfDetail (300)

Number of sections in the computer at the time of data collection. Notice that this is an instantaneous count, not an average over the time interval. A section is a portion of virtual memory created by a process for storing data. A process can share sections with other processes.

Semaphores
Data type: uint32
Access type: Read-only
Qualifiers: DisplayName ("Semaphores") , CounterType (65536) , DefaultScale (-1) , PerfDetail (300)

Number of semaphores in the computer at the time of data collection. Notice that this is an instantaneous count, not an average over the time interval. Threads use semaphores to obtain exclusive access to data structures that they share with other threads.

Threads
Data type: uint32
Access type: Read-only
Qualifiers: DisplayName ("Threads") , CounterType (65536) , DefaultScale (-1) , PerfDetail (100)

Number of threads in the computer at the time of data collection. Notice that this is an instantaneous count, not an average over the time interval. A thread is the basic executable entity that can execute instructions in a processor.

Timestamp_Object
Data type: uint64
Access type: Read-only

Object-defined timestamp, defined by the provider. 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

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 C++, see Accessing Performance Data in C++. For more information about how to create and use a refresher object using scripts, see Refreshing WMI Data in Scripts.

The performance class and property qualifiers determine how to interpret the class data. For more information, see Class Qualifiers for Performance Counter Classes and Property Qualifiers for Performance Counter Classes.

Examples

For script code examples, see WMI Tasks for Scripts and Applications and the TechNet ScriptCenter Script Repository.

For C++ code examples, see WMI C++ Application Examples.

Requirements

Minimum supported client

Windows XP

Minimum supported server

Windows Server 2003

Namespace

\root\CIMV2

DLL

WmiPerfInst.dll;
WbemPerf.dll on Windows Server 2003 and Windows XP

See also

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

 

 

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