Footnote on 16-bit memory, caching, and performance degradation
Clinton Jeffery
cjeffery at arizona.edu
Fri Aug 25 12:45:22 AEST 1989
Thanks to all who have posted figures on how much slower their UNIX runs
when 16-bit memory is used. The figures ranged from 10-40%, despite the
alleged high hit-rates of the cache. There is a good reason for this
wide variation: the cache technology (write through vs. write back) makes
a big difference. In addition, programs that manipulate large amounts
of data are going to suffer relative to programs which are code intensive
on machines with write-through caching.
--
| Clint Jeffery, U. of Arizona Dept. of Computer Science
| cjeffery at arizona.edu -or- {noao allegra}!arizona!cjeffery
--
More information about the Comp.unix.i386
mailing list