Subj : Re: [.NET] Volatile Fields
To   : comp.programming.threads
From : Alexander Terekhov
Date : Sat Sep 17 2005 05:18 pm


David Hopwood wrote:
[...]

> The release and acquire barriers referred to on the example page are global
> barriers that apply to all locations, regardless of whether they are cached
> or accessed through volatile variables. (You could argue that this is
> potentially inefficient, but current SMP systems are designed to support it,
> at some cost in hardware complexity and scalability.)

CELLs have tagged barriers (in addition to untagged Power memory ordering).

regrads,
alexander.

.