search for: ecomar

...it really a valid strategy to choose the NUMA cell for pinning vcpus looking at virsh freecell or ideally we'd need those values adjusted with buffers+cache ? And if so how could one do that ? -------------------------------------------------- regards, Edoardo Comar IBM SWG UK - Hursley JTC ecomar at uk.ibm.com Tel +44 (0)1962 81 5576 (external) 245576 (internal) IBM UK Ltd, Hursley, SO21 2JN Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU

...'m running Fedora 18 # virsh version Compiled against library: libvirt 0.10.2 Using library: libvirt 0.10.2 Using API: QEMU 0.10.2 Running hypervisor: QEMU 1.2.2 -------------------------------------------------- regards, Edoardo Comar WebSphere Application Service Platform for Networks (ASPN) ecomar at uk.ibm.com Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU

...not have to pin to different PCPUs, I would execute just one command for the whole domain rather than one command per VCPU + one per the emulator threads. Thanks! -------------------------------------------------- regards, Edoardo Comar WebSphere Application Service Platform for Networks (ASPN) ecomar@uk.ibm.com IBM UK Ltd, Hursley Park, SO21 2JN Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU

.../100% when VM2 is executing one task only ( on whatever vcpu ) 50%/150% when VM2 is executing two tasks. again, not intuitive just by looking at the shares weights, I think. -------------------------------------------------- Edoardo Comar WebSphere Application Service Platform for Networks (ASPN) ecomar@uk.ibm.com +44 (0)1962 81 5576 IBM UK Ltd, Hursley Park, SO21 2JN Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU

...pdated with RHEL 6.4 packages : libvirt.x86_64 0.10.2-18.el6_4.9</font> <br> <br><font size=2 face="sans-serif">--------------------------------------------------<br> Edoardo Comar<br> WebSphere Application Service Platform for Networks (ASPN)<br> ecomar@uk.ibm.com<br> +44 (0)1962 81 5576 <br> IBM UK Ltd, Hursley Park, SO21 2JN<br> <br> Unless stated otherwise above:<br> IBM United Kingdom Limited - Registered in England and Wales with number 741598. <br> Registered office: PO Box 41, North Harbour, Portsmouth, H...

...t pool, the LV resulting from qemu-img convert is not corrupt but it uses as much space as the file-image capacity it came from. This on both RHEL64 and Fedora18. -------------------------------------------------- regards, Edoardo Comar WebSphere Application Service Platform for Networks (ASPN) ecomar@uk.ibm.com +44 (0)1962 81 5576 IBM UK Ltd, Hursley Park, SO21 2JN Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU

> > I think a good way to get that is to shrink the filesystem of the > original disk, shrink the disk itself and convert the file-based image > to the LV like you do. > > Once done, you can extend the LV and the filesystem back to what it was > before the process if needed. > > Other than that, I don't know a way to get what you want with the > current tools.

Hi I have a test environment where a single LVM volume group is used both as a storage pool for virtual machines' disks AND for the LVs used for the HOST system filesystem. I never use libvirt commands to start/stop/activate the pool. Only to create/delete volumes. The test environment works fine. How suitable would be a shared VG for a production environment ? thanks, Edoardo Comar

<font size=2 face="sans-serif">Hi</font> <br> <br><font size=2 face="sans-serif">I dug various posts and articles on guest time synchronization.</font> <br><font size=2 face="sans-serif">I could not conclude why it might be better to use ntpd in a guest rather than a daemon that reads from kvmclock </font>

Hi (apologies for the previous post in html - was scrubbed in the list digest) I've dug various posts and articles on host-guest time synchronization. I could not conclude why it might be better to use ntpd in a guest rather than a daemon that reads from kvmclock and having NTP running on the host only (assuming the guest OS is a recent linux and so the clock source is set to the