Performance Counter Classes (Windows)

Performance Counter Classes

Performance Counter classes allow scripting and program access to system performance data calculated by existing high-performance providers. For computers running on Windows Vista and later operating systems, different providers supply performance library data through WMI. The WMIPerfClass and WMIPerfInst providers supply classes for both version 1 and version 2 Performance Counters. These providers maintain compatibility with the classes available in earlier operating systems.

Windows Server 2003 and Windows XP: Performance classes derived from Win32_Perf are supplied by the Formatted Performance Data Provider and the Performance Counter Provider.

The following WMI performance data classes represent basic operating system classes. This is not a complete list of classes that you may find on your operating system. For more information, see Performance Libraries and WMI.

Formatted Performance Counter Classes
Raw Performance Counter Classes

Formatted Performance Counter Classes

The following table lists the formatted performance counter classes.

Class	Description
Win32_PerfFormattedData	Abstract base class for the formatted data classes.
Win32_PerfFormattedData_ASP_ActiveServerPages	Performance counters for the Active Server Pages device on the computer system.
Win32_PerfFormattedData_ContentFilter_IndexingServiceFilter	Performance information about an Indexing Service filter.
Win32_PerfFormattedData_ContentIndex_IndexingService	Performance data about the state of the Indexing Service.
Win32_PerfFormattedData_InetInfo_InternetInformationServicesGlobal	Performance counters that monitor Internet Information Services (the Web service and the FTP service) as a whole.
Win32_PerfFormattedData_ISAPISearch_HttpIndexingService	Performance counters that monitor the HTTP Indexing Service.
Win32_PerfFormattedData_MSDTC_DistributedTransactionCoordinator	Performance counters for Microsoft Distributed Transaction Coordinator performance counters.
Win32_PerfFormattedData_NTFSDRV_SMTPNTFSStoreDriver	Performance counters for the Exchange NTFS Store driver.
Win32_PerfFormattedData_PerfDisk_LogicalDisk	Performance counters that monitor logical partitions of a hard or fixed disk drive.
Win32_PerfFormattedData_PerfDisk_PhysicalDisk	Performance counters that monitor hard or fixed disk drives on a computer.
Win32_PerfFormattedData_PerfNet_Browser	Performance counters that measure the rates of announcements, enumerations, and other browser transmissions.
Win32_PerfFormattedData_PerfNet_Redirector	Performance counters that monitor network connections originating at the local computer.
Win32_PerfFormattedData_PerfNet_Server	Performance counters that monitor communications using the WINS Server service.
Win32_PerfFormattedData_PerfNet_ServerWorkQueues	Performance counters that monitor the length of the queues and objects in the queues.
Win32_PerfFormattedData_PerfOS_Cache	Performance counters that monitor the file system cache, an area of physical memory that stores recently used data as long as possible to permit access to the data without having to read from the disk.
Win32_PerfFormattedData_PerfOS_Memory	Performance counters that describe the behavior of physical and virtual memory on the computer.
Win32_PerfFormattedData_PerfOS_Objects	Performance counter for the objects contained by the operating system such as events, mutexes, processes, sections, semaphores, and threads.
Win32_PerfFormattedData_PerfOS_PagingFile	Performance counters that monitor the paging file(s) on the computer.
Win32_PerfFormattedData_PerfOS_Processor	Performance counters that measure aspects of processor activity.
Win32_PerfFormattedData_PerfOS_System	Performance counters that apply to more than one instance of a component processors on the computer.
Win32_PerfFormattedData_PerfProc_FullImage_Costly	Performance counters that monitor the virtual address usage of images executed by processes on the computer.
Win32_PerfFormattedData_PerfProc_Image_Costly	Performance counters that monitor the virtual address usage of images executed by processes on the computer.
Win32_PerfFormattedData_PerfProc_JobObject	Performance counters for the accounting and processor usage data collected by each active named job object.
Win32_PerfFormattedData_PerfProc_JobObjectDetails	Performance counters for information about the active processes that make up a job object.
Win32_PerfFormattedData_PerfProc_Process	Performance counters that monitor running application program and system processes.
Win32_PerfFormattedData_PerfProc_ProcessAddressSpace_Costly	Performance counters that monitor memory allocation and use for a selected process.
Win32_PerfFormattedData_PerfProc_Thread	Performance counters that measure aspects of thread behavior.
Win32_PerfFormattedData_PerfProc_ThreadDetails_Costly	Performance counters that measure aspects of thread behavior that are difficult or time-consuming to collect.
Win32_PerfFormattedData_PSched_PSchedFlow	Performance counters for flow statistics from the packet scheduler.
Win32_PerfFormattedData_PSched_PSchedPipe	Performance counters for pipe statistics from the packet scheduler.
Win32_PerfFormattedData_RemoteAccess_RASPort	Performance counters that monitor individual Remote Access Service ports of the RAS device on the computer.
Win32_PerfFormattedData_RemoteAccess_RASTotal	Performance counters that combine values for all ports of the Remote Access service (RAS) device on the computer.
Win32_PerfFormattedData_RSVP_ACSRSVPInterfaces	Performance counters for the number of local network interfaces visible to, and used by the RSVP service.
Win32_PerfFormattedData_RSVP_ACSRSVPService	Performance counters for RSVP or ACS service.
Win32_PerfFormattedData_SMTPSVC_SMTPServer	Performance counters specific to the SMTP Server.
Win32_PerfFormattedData_Spooler_PrintQueue	Performance performance counters for a print queue.
Win32_PerfFormattedData_TapiSrv_Telephony	Represents the telephony system.
Win32_PerfFormattedData_Tcpip_ICMP	Performance counters that measure the rates at which messages are sent and received by using ICMP protocols.
Win32_PerfFormattedData_Tcpip_IP	Performance counters that measure the rates at which IP datagrams are sent and received by using IP protocols.
Win32_PerfFormattedData_Tcpip_NBTConnection	Performance counters that measure the rates at which bytes are sent and received over the NBT connection between the local computer and a remote computer.
Win32_PerfFormattedData_Tcpip_NetworkInterface	Performance counters that measure the rates at which bytes and packets are sent and received over a TCP/IP network connection.
Win32_PerfFormattedData_Tcpip_TCP	Performance counters that measure the rates at which TCP segments are sent and received by using the TCP protocol.
Win32_PerfFormattedData_Tcpip_UDP	Performance counters that measure the rates at which UDP datagrams are sent and received by using the UDP protocol.
Win32_PerfFormattedData_TermService_TerminalServices	Performance counters for terminal services summary information.
Win32_PerfFormattedData_TermService_TerminalServicesSession	Performance counters for terminal services per-session resource monitoring.
Win32_PerfFormattedData_W3SVC_WebService	Performance counters specific to the World Wide Web Publishing Service.

Raw Performance Counter Classes

The following table lists the raw performance counter classes.

Class	Description
Win32_PerfRawData	Abstract base class for all concrete raw performance counter classes.
Win32_PerfRawData_ASP_ActiveServerPages	Performance counters for the Active Server Pages device on the computer system.
Win32_PerfRawData_ContentFilter_IndexingServiceFilter	Performance counters for an Indexing Service filter.
Win32_PerfRawData_ContentIndex_IndexingService	Performance counters for the state of the Indexing Service.
Win32_PerfRawData_InetInfo_InternetInformationServicesGlobal	Performance counters that monitor Internet Information Services (the Web service and the FTP service) as a whole.
Win32_PerfRawData_ISAPISearch_HttpIndexingService	Performance counters for the HTTP Indexing Service.
Win32_PerfRawData_MSDTC_DistributedTransactionCoordinator	Performance counters for Microsoft Distributed Transaction Coordinator.
Win32_PerfRawData_NTFSDRV_SMTPNTFSStoreDriver	Performance counters for global counters for the Exchange NTFS Store driver.
Win32_PerfRawData_PerfDisk_LogicalDisk	Performance counters that monitor logical partitions of a hard or fixed disk drive.
Win32_PerfRawData_PerfDisk_PhysicalDisk	Performance counters that monitor hard or fixed disk drives on a computer.
Win32_PerfRawData_PerfNet_Browser	Performance counters that measure the rates of announcements, enumerations, and other browser transmissions.
Win32_PerfRawData_PerfNet_Redirector	Performance counters that monitor network connections originating at the local computer.
Win32_PerfRawData_PerfNet_Server	Performance counters that monitor communications using the WINS Server service.
Win32_PerfRawData_PerfNet_ServerWorkQueues	Performance counters that monitor the length of the queues and objects in the queues.
Win32_PerfRawData_PerfOS_Cache	Performance counters that monitor the file system cache.
Win32_PerfRawData_PerfOS_Memory	Performance counters that describe the behavior of physical and virtual memory on the computer.
Win32_PerfRawData_PerfOS_Objects	Performance counters for objects contained by the operating system such as events, mutexes, processes, sections, semaphores, and threads.
Win32_PerfRawData_PerfOS_PagingFile	Performance counters that monitor the paging file(s) on the computer.
Win32_PerfRawData_PerfOS_Processor	Performance counters that measure aspects of processor activity.
Win32_PerfRawData_PerfOS_System	Performance counters that apply to more than one instance of a component processors on the computer.
Win32_PerfRawData_PerfProc_FullImage_Costly	Performance counters that monitor the virtual address usage of images executed by processes on the computer.
Win32_PerfRawData_PerfProc_Image_Costly	Performance counters that monitor the virtual address usage of images executed by processes on the computer.
Win32_PerfRawData_PerfProc_JobObject	Performance counters for the accounting and processor usage data collected by each active, named Job object.
Win32_PerfRawData_PerfProc_JobObjectDetails	Performance counters for the active processes that make up a Job object.
Win32_PerfRawData_PerfProc_Process	Performance counters that monitor running application program and system processes.
Win32_PerfRawData_PerfProc_ProcessAddressSpace_Costly	Performance counters that monitor memory allocation and use for a selected process.
Win32_PerfRawData_PerfProc_Thread	Performance counters that measure aspects of thread behavior.
Win32_PerfRawData_PerfProc_ThreadDetails_Costly	Performance counters that measure aspects of thread behavior that are difficult or time-consuming to collect.
Win32_PerfRawData_PSched_PSchedFlow	Performance counters for flow statistics from the packet scheduler.
Win32_PerfRawData_PSched_PSchedPipe	Performance counters for pipe statistics from the packet scheduler.
Win32_PerfRawData_RemoteAccess_RASPort	Performance counters that monitor individual Remote Access Service ports of the RAS device on the computer.
Win32_PerfRawData_RemoteAccess_RASTotal	Performance counters that combine values for all ports of the Remote Access service (RAS) device on the computer.
Win32_PerfRawData_RSVP_ACSRSVPInterfaces	Performance counters for local network interfaces visible to, and used by the RSVP service.
Win32_PerfRawData_RSVP_ACSRSVPService	Performance counters for RSVP or ACS service.
Win32_PerfRawData_SMTPSVC_SMTPServer	Performance counters specific to the SMTP server.
Win32_PerfRawData_Spooler_PrintQueue	Performance counters for a print queue.
Win32_PerfRawData_TapiSrv_Telephony	Performance counters for the telephony system.
Win32_PerfRawData_Tcpip_ICMP	Performance counters that measure the rates at which messages are sent and received by using ICMP protocols.
Win32_PerfRawData_Tcpip_IP	Performance counters that measure the rates at which IP datagrams are sent and received by using IP protocols.
Win32_PerfRawData_Tcpip_NBTConnection	Performance counters that measure the rates at which bytes are sent and received over the NBT connection between the local computer and a remote computer.
Win32_PerfRawData_Tcpip_NetworkInterface	Performance counters that measure the rates at which bytes and packets are sent and received over a TCP/IP network connection.
Win32_PerfRawData_Tcpip_TCP	Performance counters that measure the rates at which TCP Segments are sent and received by using the TCP protocol.
Win32_PerfRawData_Tcpip_UDP	Performance counters that measure the rates at which UDP datagrams are sent and received by using the UDP protocol.
Win32_PerfRawData_TermService_TerminalServices	Performance counters for terminal services summary information.
Win32_PerfRawData_TermService_TerminalServicesSession	Performance counters for terminal services per-session resource monitoring.
Win32_PerfRawData_W3SVC_WebService	Performance counters specific to the World Wide Web Publishing Service.

Formatted Performance Counter Classes

Raw Performance Counter Classes

See Also