Can a kind soul advise why when running diskinfo -wS /dev/nvdx ...
It truncates output @ 256 kbytes: diskinfo: AIO write submit error: Operation not supported
And doesn't continue to 8192 kbytes as per usual?
I have a smorgasboard of different M.2 drives I wanted to bench (this being one quick test I wanted to perform):
[dual post in the interest of transparency on ix too ... surprised it wasn't snagged already - and this is killing me!!!]
It truncates output @ 256 kbytes: diskinfo: AIO write submit error: Operation not supported
And doesn't continue to 8192 kbytes as per usual?
I have a smorgasboard of different M.2 drives I wanted to bench (this being one quick test I wanted to perform):
- 2x Samsung SSD 970 EVO Plus 500GB
- 2x WD SN750 500 GB
- 2x INTEL SSDPEL1D380GA (905P 380GB)
- 2x P4801x 100GB
Code:
diskinfo -wS /dev/nvd3
/dev/nvd3
512 # sectorsize
...
Synchronous random writes:
0.5 kbytes: 42.6 usec/IO = 11.5 Mbytes/s
1 kbytes: 44.3 usec/IO = 22.0 Mbytes/s
....
128 kbytes: 127.1 usec/IO = 983.6 Mbytes/s
256 kbytes: diskinfo: AIO write submit error: Operation not supported