[pve-devel] Virtio--Blk-Data-Plane deliver much higher I/O rates than both of its major competing hypervisors

[Stefan Priebe - Profihost AG]

Yes that's why i'm always staring at  Virtio--Blk-Data-Plane but isn't
it unstable right now and has a lot of missing features?

If i remember correctly there were some reasons why it is not available
in PVE right now.

Stefan

Am 06.02.2014 08:11, schrieb Cesar Peschiera:
> Hi people
> 
> Only as comment for you (if you don't know it), I bring a link PDF of IBM
> that say between many things:
> 
> KVM with Virtio--Blk-Data-Plane deliver much higher I/O rates than both
> of its major competing hypervisors
> 
> KVM with virtio-blk technology could achieve only about 150,000 I/O
> operations per second for a single guest
> 
> KVM with Virtio--Blk-Data-Plane: (Technology Preview in RHEL 6.4) more than
> 1.5 million IOPS for random I/O requests that were 4KB or less
> - 49% higher than VMware vSphere 5.1
> - The highest storage I/O performance ever reported in a virtualized
> environment
> 
> VMware vSphere 5.1: recently indicated that it could achieve almost 1.1
> million IOPS
> 
> In addition, KVM with virtio-blk-data-plane technology can achieve much
> higher I/O rates than what Microsoft has claimed for its Hyper-V hypervisor
> across multiple block sizes
> 
> ftp://public.dhe.ibm.com/linux/pdfs/KVM_Virtualized_IO_Performance_Paper_v2.pdf
> 
> 
> Best regards
> Cesar
> 
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