Re: KVM benchmarks (compared to vmware)

[Fabio Coatti <cova@ferrara.linux.it>]

lunedì 17 novembre 2008, hai scritto:
> Hello list,
>
> I did some benchmarks over the weekend and compared
> kvm-78 on a 2.6.27.4-2-default against vmware server 2.0.0-122956
>
> Host Machine:
> - Host E8400 (3GHz) 2GB RAM
> - virtual machines are on iSCSI or NFS
> - virtual machine is booted with -m 1024 and e1000

> 3. Bench
> =========
> Now the NIC performance from within the VM to the outer world,
> (measured with tcpspray--program writes to the discard service over tcp)
>
> VM->outer world
>
> 1. iSCSI kvm : 12 MB/s
> 2. NFS   kvm : 12 MB/s
> 3. VMWare    : 50 MB/s
>
> now the reverse:
>
> outer world->VM
>
> 1. iSCSI kvm : 50 MB/s
> 2. NFS   kvm : 50 MB/s
> 3. VMWare    : 100 MB/s
>
> but here the kvm results varies from 30MB/s - 70MB/s

Do you have any benchmark using virtio network driver, by any chance? From 
your mail I guess that you used e1000 driver in each case, right?




-- 
Fabio "Cova" Coatti    http://members.ferrara.linux.it/cova     
Ferrara Linux Users Group           http://ferrara.linux.it
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