proxmox nvme disk performance very slow

[catchme.arul]

Hi

performance is very slow and not able to achieve the expected, with dl380 gen11 server + 3.2 nvme disk, kindly suggest

 

[catchme.arul]

 

[spirit]

currently, it's possible that you are cpu limited, as 1disk in a vm can only use 1core for input/ouput.

since qemu 9.0, it's possible to have multithreading to use multiple cores by disk, but it's not yet implemented in pve.

 

[catchme.arul]

currently, it's possible that you are cpu limited, as 1disk in a vm can only use 1core for input/ouput.

since qemu 9.0, it's possible to have multithreading to use multiple cores by disk, but it's not yet implemented in pve.

However, the same setup with hpe DL380 gen10 plus v2 server the performance is good as expected

 

[catchme.arul]