Windows NT only
PerfMtr can display a variety of system performance information. The command-line syntax is:
perfmtr
 PerfMtr begins by displaying CPU usage. Use the following keystrokes to change the type of performance information displayed:
| Key | Displays | 
|---|---|
| C | CPU usage | 
| V | VM usage | 
| F | File Cache usage | 
| R | Cache Manager read and write operations | 
| P | Pool usage | 
| I | I/O usage | 
| X | x86 VDM stats | 
| S | Server stats | 
The information is periodically updated, and will scroll off the screen. Type H to repeat the header for the current information type. You can also type Q to quit.