Image Object

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

The Image performance object consists of counters that monitor virtual address usage of images executed by processes on the computer. This object contains "costly" counters for which data collection is typically either processor-intensive or memory-intensive. Costly counters cannot be selected with System Monitor but can be accessed by using Showperf.exe, a tool included in the Windows Resource Kit Tools Help for Windows Server 2003.

Counter Name	Description	Counter Type
Exec Read Only	Shows memory that can be executed as well as read. Image Space is the virtual address space used by the selected image with this protection.	PERF_COUNTER_RAWCOUNT
Exec Read/Write	Shows memory that can be executed by programs, in addition to being read and written.	PERF_COUNTER_RAWCOUNT
Exec Write Copy	Shows memory that can be executed by programs, in addition to being read and written. This type of protection is used when memory needs to be shared between processes. If the sharing processes only read the memory, they all use the same memory. If a sharing process wants to have write access to this shared memory, a copy of this memory is made for that process.	PERF_COUNTER_RAWCOUNT
Executable	Shows memory that can be executed by programs, but cannot be read or written. This type of protection is not supported by all processor types.	PERF_COUNTER_RAWCOUNT
No Access	Prevents a process from writing or reading these pages, and generates an access violation if either is attempted.	PERF_COUNTER_RAWCOUNT
Read Only	Prevents the contents of these pages from being modified. Any attempt to write or modify these pages generates an access violation	PERF_COUNTER_RAWCOUNT
Read/Write	Allows a process to read, modify and write to these pages.	PERF_COUNTER_RAWCOUNT
Write Copy	Used when memory is shared for reading but not for writing. If the sharing processes only read this memory, they all use the same memory. If a sharing process wants read/write access to this shared memory, a copy of this memory is made for that process.	PERF_COUNTER_RAWCOUNT

See Also

Concepts

Process Address Space Object
Job Object Object
Job Object Details
Thread Details Object