Messages in this thread | | | From | Al Boldi <> | Subject | Re: [RFC] VM: I have a dream... | Date | Mon, 30 Jan 2006 16:21:24 +0300 |
| |
Bryan Henderson wrote: > >> So we know it [single level storage] works, but also that people don't > >> seem to care much for it > > > People didn't care, because the AS/400 was based on a proprietary > > solution. > > I don't know what a "proprietary solution" is, but what we had was a > complete demonstration of the value of single level storage, in commercial > use and everything, and other computer makers (and other business units > of IBM) stuck with their memory/disk split personality. For 25 years, > lots of computer makers developed lots of new computer architectures and > they all (practically speaking) had the memory/disk split. There has to > be a lesson in that.
Sure there is lesson here. People have a tendency to resist change, even though they know the current way is faulty.
> > With todays generically mass-produced 64bit archs, what's not to care > > about a cost-effective system that provides direct mapped access into > > linear address space? > > I don't know; I'm sure it's complicated.
Why would you think that the shortest path between two points is complicated, when you have the ability to fly?
> But unless the stumbling block > since 1980 has been that it was too hard to get/make a CPU with a 64 bit > address space, I don't see what's different today.
You are hitting the nail right on it's head here. Nothing moves the masses like mass-production.
So with 64bits widely available now, and to let Linux spread its wings and really fly, how could tmpfs merged w/ swap be tweaked to provide direct mapped access into this linear address space?
Thanks!
-- Al
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |