Nonpaged pool problem

[John Gillings]

John,

AUTOGEN was designed in an age when resources, and particularly memory, was far more expensive than it is today. Although OpenVMS engineering has done some updating of the algorithms, they're still not completely up to date in terms of relative costs of resources. Sticking a finger in the air... they're probably appropriate for an Alpha system from about 1999 with up to 500MB of main memory and 20GB of disk space.

Also remember that AUTOGEN isn't so much a fine tuning tool, as one that will give you a conservative configuration that's guaranteed bootable. If your system is younger than my hypothetical 1999 Alpha, or with significantly more resources, you can well afford to be FAR more generous than AUTOGEN recommends.

If you don't have any apparent problems with what AUTOGEN has set, then let the sleeping dog lie, BUT if you're having any kind of issue, it's better to leapfrog the AUTOGEN recommendation to potentially avoid another round of error/increment/reboot.

In this case, even thinking about an NPAGEDYN difference of 10MB isn't worth your time. Consider the cost of that memory, and the proportion of your total. Round it up to the nearest single digit of precision and be done with it. Go 50MB or even 60MB. We're well past the days when "wasting" 10MB of RAM was a serious problem, especially for a key resource like NPAGEDYN