Performance Monitor for Windows NT 4.0 has a new instance, _Total, for counters in the Process, Thread, Paging File, Physical Disk, and Logical Disk objects. _Total is the sum of counter values for all instances of the object. The _Total counters are useful for screening and are easier to read than a chart of all instances.
However, the _Total instance doesn't make sense for some counters. For example, the total of Process ID or Thread ID, has no meaning. In these cases, Performance Monitor displays a zero for the _Total instance.
You can change the name of the _Total instance by editing the configuration registry entry, TotalInstanceName.
Subtree | HKEY_LOCAL_MACHINE |
Key | \Software\Microsoft\WindowsNT\CurrentVersion\Perflib |
Name | TotalInstanceName |
Type | REG_SZ |
Values | InstanceName (_Total is the default.) |