3 ms·
In addition to my other comments about parallel IO and unbuffered IO, be aware that WS2022 has (had?) a rather slow NVMe driver. It has been improved in WS2025.
by mgerdts 10mo ago
In addition to my other comments about parallel IO and unbuffered IO, be aware that WS2022 has (had?) a rather slow NVMe driver. It has been improved in WS2025.
- jiggawatts 10mo agoI just benchmarked this to death using a 24-core VM with two different kinds of NVMe storage. Windows Server 2025 is somewhat better on reads but only at low parallelism. There’s no difference on writes.
- mgerdts 10mo agoI just stumbled across this: > Native NVMe is now generally available (GA) with an opt-in model (disabled by default as of October’s latest cumulative update for WS2025). https://www.elevenforum.com/t/announcing-native-nvme-in-windows-server-2025.43018/ https://www.elevenforum.com/t/announcing-native-nvme-in-wind...