I mean, I can see this being cool on loads that can hit those speeds (Like massive file transfers and such), but for everyday usage we won't see anything near that speed.
Even then; I think a lot of people miss that your 1kb txt document isnt zooming through traces at the speed of 10gb/s or 7gb/s. These speeds are obtainable only via large single file transfers (like ISOs or ZIP files) think 4+gb per file. Not: 4gb of file(s). Or in some cases bit streaming (chunks).
I used to be a data architect in charge of physical systems and disks used, as well as the cache nand on them, all the way up to back planes, then up to the OS file system, then up to kernel I/O schedule tuning and then finally up to TOR switches and the throughput they could provide to my arrays (around 160 (raided)TB) per node. (around 22 per rack)
I managed backup arrays and VM clustered storage for hypervisor clusters.
The hardest thing ever was breaking new engineers of old habits like this. For each small file, there is I/O overhead. Usually a:
Read
Write
Read Verify
Mark wrote
Next file
(do it again)
Barring other constraints or limitations these ops take time. IF you are transferring 100mb of pictures, but there are 10k pictures, this will take longer than one 2gb zip, because EACH ONE is a file operation.
When dealing with scenarios like that, the throughput of the drive tanks since the controller is needing to stop and go as other files are polled. This is true of ssd or hdd. Data streaming a large file will always be faster.
tl;dr you are not transferring your documents folder to your new nvme drive at 7gb/s. (You could but the total theoretical performance of the disk would need to be vastly faster.)
EDIT:: Not attacking you btw, I was agreeing. You just triggered a super mega common misinterpretation I see all the time on the forums and as someone who had to work on it so closely it drives me absolutely wild.
I think
@W1zzard storage reviews actually show this too. Maybe one day I can do storage or server related reviews for TPU. Until then Im gonna cry everytime someone mentions raw drive speed as the go to metric.