Learn about process counters for performance data
- Last UpdatedJan 22, 2025
- 2 minute read
The following table lists performance counters for data displayed in Windows Task Manager.
|
Task Manager Performance Tab |
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 non-paged memory, in kilobytes. |
None(sum of Pool Paged Bytes and Pool Non-paged Bytes) |
|
Kernel Memory: Paged |
Size of the paged pool, in kilobytes, allocated to the operating system. |
Memory\Pool Paged Bytes |
|
Kernel Memory: Non-paged |
Size of the non-paged pool, in kilobytes, allocated to the operating system. |
Memory\Pool Non-paged Bytes |