ReRAM = Flash's successor ?

Mike O'Dell mo at ccr.org
Thu Aug 8 08:42:42 CDT 2013


there are several possible successors to Flash,
all of which are being pursuded aggressively.

if we get a non-volatile memory with the speed of DRAM
and capacity at the current Flash level, the real
transformation will be a system without "secondary storage" -
all storage is accessible as "main memory" with main memory
performance but the capacity and non-volatility of disks.
that will have profound implications for the architecture
of operating systems and the "shape" of hardware.
The first rule is that multiprogramming works because
disks are slow and that provides "natural" interleaving.
without that, work on schedulers will be back on the
front burner for the first time in many years, while
the whole notion of "filesystem" will be up for grabs.

      -mo


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