[OpenAFS] Re: Afs User volume servers in VM's

[Andrew Deason]

On Wed, 26 Oct 2011 12:45:07 -0400
Jeffrey Altman <jaltman@secure-endpoints.com> wrote:

> > I wonder why 128 threads (or 256 with 1.6) can't make use of more
> > than four cores though?
> 
> Resource contention between threads executing on separate sockets is
> extremely expensive and there is no practical method of enforcing
> processor affinity for all of the file server threads to ensure that
> they only execute on cores within a single socket.  At least not that
> I am aware of on Linux.  Windows would make such thread execution
> restrictions trivial.

Linux, Solaris, and AIX all have this ability; I assume other Unix
platforms do, as well.

-- 
Andrew Deason
adeason@sinenomine.net