Re: [PATCH 1/2] lib: Provide generic atomic64_t implementation

Roland Dreier
2009-06-15T02:44:52Z

> The new Nehalems provide 8 logical threads in a single socket. All
> those threads share a cache, and they have cmpxchg8b anyway, so this
> won't matter.

FWIW, Nehalem EX actually goes to 8 cores/16 threads per socket. But
worrying about 32-bit performance on Nehalem is a little silly -- this
simplest solution is simply to run a 64-bit kernel.

- R.