alt Hacker NewsIsn't high grade SSD storage pretty much a memory layer as well these days as the difference is no longer several orders of magnitude in access time and thoughput but only one or two (compared to tha last layer of memory)?
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fc417fc802 • today at 10:06 AM
Sort of? Relative to 6 or more channels of RAM it's still quite abysmal but perhaps high bandwidth flash will change how things are done.
Optane was supposed to fill the gap but Intel never found a market for this.
Flash is still extremely slow compared to ram, including modern flash, especially in a world where ram is already very slow and your cpu already keeps waiting for it.
That being said, you should consider ram/flash/spinning to be all part of a storage hierarchy with different constants and tradeoffs ( volatile or not, big or small , fast or slow etc ), and knowing these tradeoffs will help you design simpler and better systems.