Disk IO in proxmox

haphan

Hi,

I am new to proxmox and I have a question regarding disk IO performance between host node and virtual machines.

Host: ~70MB/s
KVM 55MB/s
OpenVZ 51MB/s

Is this normal? I am using proxmox 2.1. For KVM I use virtio library.

KuJoe

Yup, disk IO performance in Proxmox was always terrible for us. Once we switched from Proxmox to just a base CentOS install (same exact hardware, latest OpenVZ kernel, and without LVMs) our write speeds jumped from 50-60MB/s to over 130MB/s (both host and OpenVZ VPSs).

Pats

@KuJoe said: Once we switched from Proxmox to just a base CentOS install (same exact hardware, latest OpenVZ kernel, and without LVMs) our write speeds jumped

@KuJoe any good how-to for the CentOS install? maybe i'll try and shift from Proxmox

KuJoe

I just followed this: http://wiki.openvz.org/Quick_installation

It's only good for OpenVZ though and doesn't offer KVM like Proxmox does. I find OpenVZ suits my needs much better than KVM though for our internal servers.

Pats

@KuJoe said: I find OpenVZ suits my needs

i'm also playing with OpenVZ currently..
After quick installation, all management from commandline?
and any panel for clients?

karl

openvz web panel its on google code its awesome

KuJoe

@Pats said: After quick installation, all management from commandline?

and any panel for clients?

Yup, CLI only. No clients on the server so I don't need a panel.

Pats

@KuJoe said: No clients on the server so I don't need a panel

hmmm... and on servers with clients... solus?

KuJoe

@Pats said: hmmm... and on servers with clients... solus?

Yup.