With this patch set, an unmodified application would either use:
1) whatever memory it happened to get
2) only the faster dram (via numactl --membind=)
3) only the slower pmem (again, via numactl --membind1)
4) preferentially one or the other (numactl --preferred=)
Yet another option:
On 1/17/19 8:29 AM, Jeff Moyer wrote:
>> 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
Keith Busch writes:
>> Keith, you seem to be implying that there are platforms that won't
>> support memory mode. Do you also have some insight into how customers
>> want to use this, beyond my speculation? It's really frustrating to see
>> patch sets like this go by without any real use cases
On Thu, Jan 17, 2019 at 12:20:06PM -0500, Jeff Moyer wrote:
> Keith Busch writes:
> > On Thu, Jan 17, 2019 at 11:29:10AM -0500, 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
Keith Busch writes:
> On Thu, Jan 17, 2019 at 11:29:10AM -0500, 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
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
On Thu, Jan 17, 2019 at 11:29:10AM -0500, 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
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!
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