question about caching & bind

[Pete Ehlke]

> > 
> > I appreciate your reply, although the "toy-operating systems" comment
> > was really unnecessary. It happens, servers get re-booted, its a fact
> > of life, but I still manage to sleep at night. I realize keeping the
> > server up is the main goal, however my question still stands. Can I
> > re-prime the cache as explained or is this is wasted effort.
> > 
The "benefits" of large caches are mostly a myth. There is very
interesting work (see, for example
http://nms.lcs.mit.edu/papers/dns-ton2002.pdf esp. Section V,
"Effectiveness of caching") showing that in the real world, very, very
small numbers of names account for the vast majority of queries, and
that of the remainder, a significant percentage are referenced only
once. In other words, your cache quickly reaches most of its potential
richness very quickly, even with very few clients, and many of the
non-cache lookups would not be in cache no matter *how* large and
robust.

Which is a long winded way of saying "yes, it's a wasted effort".

-Pete