I'm sure it's amazing for heavily loaded databases but that's a pretty small fraction of computers.
For a filesystem I'm less sure about the benefits. Most of the waiting time I see is for the CPU, even if the information is already in memory. What I need is better code implementing the filesystem, not a hardware bump. And even if you go all-in on optane metadata, you only need to replace 1% of your NAND.
I do think there's some really nice potential, but almost all of what I'm interested in can be done with tiny amounts.
Some things are amazingly slow, though; look at how long it takes to install software, for instance. That's rarely CPU-bound at all, but somehow is influenced by I/O mismanagement in the various installers.
Installing software is usually CPU bound on Windows as decompression, anti-malware scanning, and signature validation of every file write limits throughput. Filesystem metadata management is also a bottleneck.
Other platforms may not have the anti-malware scan but do similar things.
For a filesystem I'm less sure about the benefits. Most of the waiting time I see is for the CPU, even if the information is already in memory. What I need is better code implementing the filesystem, not a hardware bump. And even if you go all-in on optane metadata, you only need to replace 1% of your NAND.
I do think there's some really nice potential, but almost all of what I'm interested in can be done with tiny amounts.