Re: Can't get RAID5/RAID6 NVMe randomread IOPS - AMD ROME what am I missing?????

Hey Jim,

Read iops (rand/seq) were addressed in a recent commit:
97ae27252f49 md/raid5: avoid device_lock in read_one_chunk()
https://github.com/torvalds/linux/commit/97ae27252f4962d0fcc38ee1d9f913d817a2024e
It was merged into 5.14, so you can either cherry-pick it or just use a
latest-master kernel.

Sounds like your environment is stronger than the one I used for the
testing, so please do share your benchmark if you manage to surpass the
results described in the commit message.

Cheers,
Gal Ofri,
Volumez (formerly storing.io)