🚀 go-pugleaf

In <4lof6l$n9e@cpcug.org>, kbennett@cpcug.org (Keith Bennett) writes:
>Are device drivers swapped out when not in use or are they locked in
>memory?  We're trying to find out the cost (in RAM) of installing
>some network software.  If they get swapped out, there's no problem.
>If they don't, and the amount of memory they use is nontrivial, we
>need to consider being more selective about which machines get it.
>

In general, device drivers are locked into memory; particularly those
portions which service interrupts (no time to swap when an interrupt
needs to be serviced).  Exactly what is locked down is dependent on 
the device driver; some will lock in a small portion, load in more when 
the device is opened, and release when the device is closed.

I don't know of any drivers that are managed by the swapper, but I 
won't go so far as to say it can't happen.

===========================================================
Stan Morrow
Stern & Morrow Software Consulting, Inc.