Proxmox VE 7.2 Benchmark: aio native, io_uring, and iothreads

Hey everyone, a common question in the forum and to us is which settings are best for storage performance. We took a comprehensive look at performance on PVE 7.2 (kernel=5.15.53-1-pve) with aio=native, aio=io_uring, and iothreads over several weeks of benchmarking on an AMD EPYC system with 100G networking running in a datacenter environment with moderate to heavy load.

Here's an overview of the findings:

• iothreads significantly improve performance for most workloads.
• aio=native...

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