Isn't swap basically expanded memory while using DRAM as cache? It seems like this could be just a different way of operating that cache.
I wonder if this new feature would be used with swapon/swapoff or if it would need a different interface.
Intel have a fork of Redis that uses Optane storage instead of RAM. The end result is a persistent DB that can operate at the speed of Redis.
Re:Linux 5.1 Arrives
by dvfjsdhgfv on Tuesday May 07, 2019 @02:09PM
(#19851928)
> Basically there's Intel Optane DIMM
These chips are extraordinary, when the prices finally go down to a reasonable level it will be another revolution in both persistent (speed) and volatile (size) memory.
Basically there's Intel Optane DIMM which costs less than DRAM and offers good enough performance, so you can use Optane with DRAM as a cache and those patches provide proper Linux support for that scheme.