on GUIs and such things
Jonathan S. Shapiro
shap@eros-os.org
Tue, 25 Jul 2000 11:37:34 -0400
> > ECC RAM supports reasonable error detection and only modest error
recovery.
> > The problem is that as memory densities improve the particle hits knock
out
> > more bits, and you start to need more correction bits in the RAM.
>
> Do we have stats on how often this happens?
In 1987, when we first installed parity memory in an early 3b2, we observed
four crashes in the course of a year that were ultimately attributed to
particle hits. This is already too many, but as memory density has gone up
so has the hit rate.
shap