WATCH is an OpenVMS system monitor. It works very much like the Monitor utility provided by Digital Equipment, but its main advantage is it packs all the important information into one useful screen.
On the main screen you can monitor:
CPU usage (Total and system)
Total memory usage
System wide page faults
IO (Direct, Buffer, Split)
Disk performance (I/O Rate, Que Length Response, % Free, Files open)
Top resource user for CPU, BIO, DIO, Page Faults and Working Sets.
For any of the above you can pinpoint the top six processes and display all important details
Number of each process types on your system(Interactive, Batch, etc)
Number of each process states on your system (COM,LEF,HIB, etc)
Other Detail Screens
If you need more detail for processes or disks, detail screens display these items.
WATCH also has these following features:
Advice screen that reports various possible performance problems
A recorder that allows you to record information for generating reports or later playback
On the main screen, Watch allows you to compare current statistics with the previous value, the maximum value, the difference between last and current value, and the average value.
Some New Features of Watch Version 5 and Watch Version 6
The main WATCH screen now shows the year as well as month and day.
WATCH can now record data for more than the current day. When using WATCH to record data for subsequent use you may now specify date and time with the /START_TIME and /END_TIME qualifiers. Previously they accepted only time and no date information.
A new summary report has been added to watch. WATCH/REPORT=SUMMARY will read the contents of a watch record file and generate a two page report. Use /START_TIME and /END_TIME to summarize only a portion of the recorded information. A new /OUTPUT qualifier has been added to direct this report into a file instead of to the screen.
WATCH can now run on systems with up to 2,000 processes; the previous limit was 1,000.
WATCH now has an INSTALL_CDU.COM procedure. This procedure was added for consistency with all our other products.
The WATCH user screen can now be limited to displaying on active processes by defining the logical WATCH$ACTIVE to be "YES" before starting WATCH. Due to rounding some processes may still appear to be inactive; they have actually used less than of 1 percent of the resources.
Now you can fast forward through a watch record file using the new /condense qualifier during playback to specify that only every nth screen be displayed. All recorded information is still included in calculations for accuracy.
The /condense qualifier can also be used when printing recorded information to decrease the number of screens that are actually included in the print output.
A new wide screen display is available for watch. Sites that are experiencing overflows to the screen or print files can use the /wide qualifier to increase the size of the screen or report including increasing the number of positions available for showing most numeric values.