suggested vhost link speed settings

2010-11-27 Thread linux_kvm
Hi list, Being that the virtio interfaces are stated as acheiving 5-8 Gb throughput now with vhost, as opposed to 1Gb without, how should their link speed be defined when the choices are 2500M or 1M? I have them plotted out to make a 10Gb bond out of a pair, counting on 5Gb max each, which

Re: [RFC] GPGPU Support In KVM

2010-11-26 Thread linux_kvm
Interesting, indeed. Looking forward to it as well. On Wed, 24 Nov 2010 20:56 +0100, André Weidemann andre.weidem...@web.de wrote: Hi, On 24.11.2010 15:06, Prasad Joshi wrote: I have been following the KVM mailing list last few months and have learned that the KVM does not have the GPU

Re: limit conectivity of a VM

2010-11-20 Thread linux_kvm
if you had infinitely fast processors, every virtual network would be infinitely fast. I see on a Vyatta VM, that an interface's link speed attribute can be explicitly defined, along with duplex. Possible values are 10 100 1000 Mb, and are configured independently of the driver/model of NIC.

New @ Proxmox: -device, vhost... Docs, notes?

2010-11-13 Thread linux_kvm
Hi Everyone, I'm impressed with all the activity I see here since joining the list this year. It helps to reinforce that I chose the right technology. Thanks. The -device method vhost=on option recently became available to us at the ProxmoxVE project I'm preparing to start making use of them

Re: [v3 RFC PATCH 0/4] Implement multiqueue virtio-net

2010-10-29 Thread linux_kvm
On Fri, 29 Oct 2010 13:26 +0200, Michael S. Tsirkin m...@redhat.com wrote: On Thu, Oct 28, 2010 at 12:48:57PM +0530, Krishna Kumar2 wrote: Krishna Kumar2/India/IBM wrote on 10/28/2010 10:44:14 AM: In practice users are very unlikely to pin threads to CPUs. I may be misunderstanding what

Re: [Qemu-devel] Hitting 29 NIC limit (+Intel VT-c)

2010-10-28 Thread linux_kvm
On Thu, 14 Oct 2010 14:07 +0200, Avi Kivity a...@redhat.com wrote: On 10/14/2010 12:54 AM, Anthony Liguori wrote: On 10/13/2010 05:32 PM, Anjali Kulkarni wrote: What's the motivation for such a huge number of interfaces? Ultimately to bring multiple 10Gb bonds into a Vyatta guest. ---

Re: NIC limit

2010-10-07 Thread linux_kvm
The PCI bus has only 32 slots (devices), 3 taken by chipset + vga, and a 4th if you have, for example, a virtio disk. Are you sure these are 33 PCI devices and not 33 PCI functions? No, not sure. Apparently my statement was based on an uninformed assumption. I tested using a VM that had 30

NIC limit

2010-10-06 Thread linux_kvm
Hi again everybody, One of the admins at the ProxmoxVE project was gracious enough to quickly release a package including the previously discussed change to allow up to 32 NICs in qemu. For future reference the .deb is here:

Re: 8 NIC limit - patch - places limit at 32

2010-10-06 Thread linux_kvm
It's 8 otherwise- and after the patch is applied, it still only goes to 28 for some reason. 28's acceptable for my needs, so I'll step aside from here leave it to the experts. As for the new -device method, that's all fine good but AFAIK it's not implemented on my platform, so this was the

8 NIC limit

2010-10-05 Thread linux_kvm
Hello list: I'm working on a project that calls for the creation of a firewall in KVM. While adding a 20-interface trunk of virtio adapters to bring in a dual 10GB bond, I've discovered an 8 NIC limit in QEMU. I found the following thread in the list archives detailing a similar problem:

Fwd: Re: 8 NIC limit

2010-10-05 Thread linux_kvm
Forgot to cc list, forwarding. In this case, I think you're going to want to send your patch to the qemu-devel (on CC) mailing list (perhaps in addition to sending it here, to the kvm list). Will do, thanks for the pointer. Before I do so, I'd like to bring up one thing that comes to mind.

Re: 8 NIC limit

2010-10-05 Thread linux_kvm
Have you tried creating NICs with -device? I'm not sure what that is, will look into it, thanks. I'm using ProxmoxVE, and currently add them via a web interface. Someone happens to host a screenshot of that part here: http://c-nergy.be/blog/wp-content/uploads/Proxmox_Net2.png On Tue, 05 Oct

Re: 8 NIC limit - patch - places limit at 32

2010-10-05 Thread linux_kvm
Attached is a patch that allows qemu to have up to 32 NICs, without using the qdev -device method. max_nics.patch Description: Binary data