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SubjectRe: [PATCH 0/4] Allow persistent memory to be used like normal RAM
On Thu, Jan 17, 2019 at 8:29 AM Jeff Moyer <> wrote:
> Dave Hansen <> writes:
> > Persistent memory is cool. But, currently, you have to rewrite
> > your applications to use it. Wouldn't it be cool if you could
> > just have it show up in your system like normal RAM and get to
> > it like a slow blob of memory? Well... have I got the patch
> > series for you!
> So, isn't that what memory mode is for?

That's a hardware cache that privately manages DRAM in front of PMEM.
It benefits from some help from software [1].

> Why do we need this code in the kernel?

This goes further and enables software managed allocation decisions
with the full DRAM + PMEM address space.


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