Task Manager

http://technet.microsoft.com/en-us/library/cc938567.aspx

 

Table 5.5 Comparison of Process Data Supplied by Task Manager and System Monitor

Task Manager process measure	Description	System Monitor process object counters
Base Priority	The base priority of the process, which determines the order in which its threads are scheduled for the processor. The base priority is set by the process code, not the operating system. The operating system sets and changes the dynamic priorities of threads in the process within the range of the base. Use Task Manager to change the base priority of processes. For more information about changing priority to improve processor performance, see "Analyzing Processor Activity" in this book.	Priority Base
CPU Time	The total processor time, in seconds, used by the process since it was started.	None
CPU Usage	The percentage of time the threads of the process used the processor since the last update.	% Processor Time
GDI Objects	The number of Graphics Device Interface (GDI) objects currently used by a process. A GDI object is an object from the GDI library of application programming interfaces (APIs) for graphics output devices.	None
Handle Count	The number of object handles in the process's object table.	Handle Count
I/O Other	The number of input/output operations generated by a process that are neither reads nor writes, including file, network, and device I/Os. An example of this type of operation would be a control function. I/O Others directed to CONSOLE (console input object) handles are not counted.	I/O Other Operations/sec For more information about monitoring I/O, see the following chapters in this book: "Examining and Tuning Disk Performance" "Monitoring Network Performance"
I/O Other Bytes	The number of bytes transferred in input/output operations generated by a process that are neither reads nor writes, including file, network, and device I/Os. An example of this type of operation would be a control function. I/O Other Bytes directed to CONSOLE (console input object) handles are not counted.	I/O Other Bytes/sec
I/O Read Bytes	The number of bytes read in input/output operations generated by a process, including file, network, and device I/Os. I/O Read Bytes directed to CONSOLE (console input object) handles are not counted.	I/O Read Bytes/sec
I/O Reads	The number of read input/output operations generated by a process, including file, network, and device I/Os. I/O Reads directed to CONSOLE (console input object) handles are not counted.	I/O Read Operations/sec
I/O Write Bytes	The number of bytes written in input/output operations generated by a process, including file, network, and device I/Os. I/O Write Bytes directed to CONSOLE (console input object) handles are not counted.	I/O Write Bytes/sec
I/O Writes	The number of write input/output operations generated by a process, including file, network, and device I/Os. I/O Writes directed to CONSOLE (console input object) handles are not counted.	I/O Write Operations/sec
Image Name	Name of the process.	The process name in the Instances box
Memory Usage	The amount of main memory, in kilobytes, used by the process.	Working Set
Memory Usage Delta	The change in memory use, in kilobytes, since the last update. Unlike System Monitor, Task Manager displays negative values.	None
Nonpaged Pool	The amount of memory, in kilobytes, used by a process. Operating system memory that is never paged to disk. Paging is the moving of infrequently used parts of a program's working memory from RAM to another storage medium, usually the hard disk.	Pool Nonpaged Bytes
Page Faults	The number of times that data had to be retrieved from disk for this process because it was not found in memory. This value is accumulated from the time the process is started.	None Page faults/sec is the rate of page faults over time.
Page Faults Delta	The change in the number of page faults since the last update.	None
Paged Pool	The amount of system-allocated virtual memory, in kilobytes, used by a process. The paged pool is virtual memory available to be paged to disk. Paging is the moving of infrequently used parts of a program's working memory from RAM to another storage medium, usually the hard disk. The paged pool includes all of user memory and a portion of system memory.	Pool Paged Bytes
Peak Memory Usage	The peak amount of physical memory resident in a process since it started.	None
PID (Process Identifier)	Numerical ID assigned to the process while it runs.	ID Process
Thread Count	The number of threads running in the process.	Thread Count
USER Objects	The number of USER objects currently being used by a process. A USER object is an object from Window Manager, which includes windows, menus, cursors, icons, hooks, accelerators, monitors, keyboard layouts, and other internal objects.	None
Virtual Memory Size	The amount of virtual memory, or address space, committed to a process.	Private Bytes

 

 

 

 

Table 5.6 Comparison of System Data Provided by Task Manager and System Monitor

Task Manager counts	Description	System Monitor counters
CPU Usage	The percentage of time the processor is running a thread other than the Idle thread.	Processor/% Processor Time
MEM Usage	The amount of virtual memory used, in kilobytes.	Memory/Committed Bytes
Total Handles	The number of object handles in the tables of all processes.	Process(_Total)/Handle Count
Total Threads	The number of running threads, including one Idle thread per processor.	Process(_Total)/Thread Count
Total Processes	The number of active processes, including the Idle process.	Object/Processes is the same, but excludes the Idle process.
Physical Memory: Total	Amount of physical, random access memory, in kilobytes, installed in the computer.	None
Physical Memory: Available	Amount of physical memory available to processes, in kilobytes. It includes zeroed, free, and standby memory.	Memory/Available Bytes
Physical Memory: File Cache	Amount of physical memory, in kilobytes, released to the file cache on demand.	Memory/Cache Bytes
Commit Charge: Total	Size of virtual memory in use by all processes, in kilobytes.	Memory/Committed Bytes
Commit Charge: Limit	Amount of virtual memory, in kilobytes, that can be committed to all processes without enlarging the paging file.	Memory/Commit Limit
Commit Charge: Peak	The maximum amount of virtual memory, in kilobytes, used in the session. The commit peak can exceed the commit limit if virtual memory is expanded.	None
Kernel Memory: Total	Sum of paged and nonpaged memory, in kilobytes.	None (Sum of Pool Paged Bytes and Pool Nonpaged Bytes)
Kernel Memory: Paged	Size of the paged pool, in kilobytes, allocated to the operating system.	Memory/Pool Paged Bytes
Kernel Memory: Nonpaged	Size of the nonpaged pool, in kilobytes, allocated to the operating system.	Memory/Pool Nonpaged Bytes