K 10
svn:author
V 5
markm
K 8
svn:date
V 27
2000-12-02T18:40:16.000000Z
K 7
svn:log
V 482
Major speedup to /dev/random and the kernel thread that reseeds it.

There is no more TAILQ fifo to harvest the entropy; instead, there
is a circular buffer of constant size (changeable by macro) that
pretty dramatically improves the speed and fixes potential slowdowns-
by-locking.

Also gone are a slew of malloc(9) and free(9) calls; all harvesting
buffers are static.

All-in-all, this is a good performance improvement.

Thanks-to:	msmith for the circular buffer concept-code.

END