Process Address Space Object

The Process Address Space performance object consists of counters that monitor memory allocation and use for a selected process.

Bytes Image Reserved

Bytes Image Reserved is the sum of all virtual memory reserved by images run within this process.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

ID Process

ID Process is the unique identifier of this process. ID Process numbers are reused, so they only identify a process for the lifetime of that process.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Bytes Image Free

Bytes Image Free is the amount of virtual address space that is not in use or reserved by images within this process.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Bytes Reserved

Bytes Reserved is the total amount of virtual memory reserved for future use by this process.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Bytes Free

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Bytes Free is the total unused virtual address space of this process.

Mapped Space No Access

Mapped Space is virtual memory that has been mapped to a specific virtual address (or range of virtual addresses) in the process's virtual address space. No Access protection prevents a process from writing to or reading from these pages and will generate an access violation if either is attempted.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Mapped Space Read Only

Mapped Space is virtual memory that has been mapped to a specific virtual address (or range of virtual addresses) in the process's virtual address space. Read Only protection prevents the contents of these pages from being modified. Any attempts to write or modify these pages will generate an access violation.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Mapped Space Read/Write

Mapped Space is virtual memory that has been mapped to a specific virtual address (or range of virtual addresses) in the process's virtual address space. Read/Write protection allows a process to read, modify and write to these pages.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Mapped Space Write Copy

Mapped Space is virtual memory that has been mapped to a specific virtual address (or range of virtual addresses) in the process's virtual address space. Write Copy protection is used when memory is shared for reading but not for writing. When processes are reading this memory, they can share the same memory, however, when a sharing process wants to have write access to this shared memory, a copy of that memory is made.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Mapped Space Executable

Mapped Space is virtual memory that has been mapped to a specific virtual address (or range of virtual addresses) in the process's virtual address space. Executable memory is memory that can be executed by programs, but cannot be read or written. This type of protection is not supported by all processor types.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Mapped Space Exec Read Only

Mapped Space is virtual memory that has been mapped to a specific virtual address (or range of virtual addresses) in the process's virtual address space. Execute/Read Only memory is memory that can be executed as well as read.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Mapped Space Exec Read/Write

Mapped Space is virtual memory that has been mapped to a specific virtual address (or range of virtual addresses) in the process's virtual address space. Execute/Read/Write memory is memory that can be executed by programs as well as read and modified.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Mapped Space Exec Write Copy

Mapped Space is virtual memory that has been mapped to a specific virtual address (or range of virtual addresses) in the process's virtual address space. Execute Write Copy is memory that can be executed by programs as well as 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, then they will all use the same memory. If a sharing process desires write access, then a copy of this memory will be made for that process.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Reserved Space No Access

Reserved Space is virtual memory that has been reserved for future use by a process, but has not been mapped or committed. No Access protection prevents a process from writing to or reading from these pages and will generate an access violation if either is attempted.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Reserved Space Read Only

Reserved Space is virtual memory that has been reserved for future use by a process, but has not been mapped or committed. Read Only protection prevents the contents of these pages from being modified. Any attempts to write or modify these pages will generate an access violation.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Reserved Space Read/Write

Reserved Space is virtual memory that has been reserved for future use by a process, but has not been mapped or committed. Read/Write protection allows a process to read, modify and write to these pages.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Reserved Space Write Copy

Reserved Space is virtual memory that has been reserved for future use by a process, but has not been mapped or committed. Write Copy protection is used when memory is shared for reading but not for writing. When processes are reading this memory, they can share the same memory, however, when a sharing process wants to have read/write access to this shared memory, a copy of that memory is made.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Reserved Space Executable

Reserved Space is virtual memory that has been reserved for future use by a process, but has not been mapped or committed. Executable memory is memory that can be executed by programs, but cannot be read or written. This type of protection is not supported by all processor types.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Reserved Space Exec Read Only

Reserved Space is virtual memory that has been reserved for future use by a process, but has not been mapped or committed. Execute/Read Only memory is memory that can be executed as well as read.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Reserved Space Exec Read/Write

Reserved Space is virtual memory that has been reserved for future use by a process, but has not been mapped or committed. Execute/Read/Write memory is memory that can be executed by programs as well as read and modified.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Reserved Space Exec Write Copy

Reserved Space is virtual memory that has been reserved for future use by a process, but has not been mapped or committed. Execute Write Copy is memory that can be executed by programs as well as 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, then they will all use the same memory. If a sharing process desires write access, then a copy of this memory will be made for that process.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Unassigned Space No Access

Unassigned Space is mapped and committed virtual memory in use by the process that is not attributable to any particular image being executed by that process. No Access protection prevents a process from writing to or reading from these pages and will generate an access violation if either is attempted.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Unassigned Space Read Only

Unassigned Space is mapped and committed virtual memory in use by the process that is not attributable to any particular image being executed by that process. Read Only protection prevents the contents of these pages from being modified. Any attempts to write or modify these pages will generate an access violation.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Unassigned Space Read/Write

Unassigned Space is mapped and committed virtual memory in use by the process that is not attributable to any particular image being executed by that process. Read/Write protection allows a process to read, modify and write to these pages.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Unassigned Space Write Copy

Unassigned Space is mapped and committed virtual memory in use by the process that is not attributable to any particular image being executed by that process. Write Copy protection is used when memory is shared for reading but not for writing. When processes are reading this memory, they can share the same memory, however, when a sharing process wants to have read/write access to this shared memory, a copy of that memory is made for writing to.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Unassigned Space Executable

Unassigned Space is mapped and committed virtual memory in use by the process that is not attributable to any particular image being executed by that process. Executable memory is memory that can be executed by programs, but cannot be read or written. This type of protection is not supported by all processor types.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Unassigned Space Exec Read Only

Unassigned Space is mapped and committed virtual memory in use by the process that is not attributable to any particular image being executed by that process. Execute/Read Only memory is memory that can be executed as well as read.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Unassigned Space Exec Read/Write

Unassigned Space is mapped and committed virtual memory in use by the process that is not attributable to any particular image being executed by that process. Execute/Read/Write memory is memory that can be executed by programs as well as read and written.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Unassigned Space Exec Write Copy

Unassigned Space is mapped and committed virtual memory in use by the process that is not attributable to any particular image being executed by that process. Execute Write Copy is memory that can be executed by programs as well as 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, then they will all use the same memory. If a sharing process desires write access, then a copy of this memory will be made for that process.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Image Space No Access

Image Space is the virtual address space in use by the images being executed by the process. This is the sum of all the address space with this protection allocated by images run by the selected process No Access protection prevents a process from writing to or reading from these pages and will generate an access violation if either is attempted.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Image Space Read Only

Image Space is the virtual address space in use by the images being executed by the process. This is the sum of all the address space with this protection allocated by images run by the selected process Read Only protection prevents the contents of these pages from being modified. Any attempts to write or modify these pages will generate an access violation.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Image Space Read/Write

Image Space is the virtual address space in use by the images being executed by the process. This is the sum of all the address space with this protection allocated by images run by the selected process Read/Write protection allows a process to read, modify and write to these pages.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Image Space Write Copy

Image Space is the virtual address space in use by the images being executed by the process. This is the sum of all the address space with this protection allocated by images run by the selected process Write Copy protection is used when memory is shared for reading but not for writing. When processes are reading this memory, they can share the same memory, however, when a sharing process wants to have read/write access to this shared memory, a copy of that memory is made for writing to.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Image Space Executable

Image Space is the virtual address space in use by the images being executed by the process. This is the sum of all the address space with this protection allocated by images run by the selected process Executable memory is memory that can be executed by programs, but cannot be read or written. This type of protection is not supported by all processor types.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Image Space Exec Read Only

Image Space is the virtual address space in use by the images being executed by the process. This is the sum of all the address space with this protection allocated by images run by the selected process Execute/Read Only memory is memory that can be executed as well as read.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Image Space Exec Read/Write

Image Space is the virtual address space in use by the images being executed by the process. This is the sum of all the address space with this protection allocated by images run by the selected process Execute/Read/Write memory is memory that can be executed by programs as well as read and written and modified.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

Image Space Exec Write Copy

Image Space is the virtual address space in use by the images being executed by the process. This is the sum of all the address space with this protection allocated by images run by the selected process Execute Write Copy is memory that can be executed by programs as well as 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, then they will all use the same memory. If a sharing process desires write access, then a copy of this memory will be made for that process.

Detail Level: Wizard
Counter Type: PERF_COUNTER_RAWCOUNT

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