Re: AM2, X2, Opteron, or Opteron Socket F?
Arjan van de Ven <[email protected]> Mon, 21 Aug 2006 16:59:39 +0200
| Newsgroups | gmane.linux.redhat.amd64 |
|---|---|
| Message-ID | <[email protected]> |
On Mon, 2006-08-21 at 10:39 -0400, Bryan J. Smith wrote: > > > yes there is. But all other high speed IO (I don't count floppy's or USB > > as such) is also 64 bit capable, at least if it's made in the last > > decade or so. > > But most people expect to be able to use all sorts of 32-bit devices > without knowing it. and they work even without IOMMU. Just that there is an extra memcpy involved on the kernel side. Which at not-highspeed rates is absolutely no big deal. Of course for anything high speed you don't want that, but those are as I said before 64 bit capable.