Thanks John, After using a physical server(which supports virtualization) with [libvirt] virt_type=kvm
in nova.conf,nova instances are working as expected for SOS-CI. But I remembered that one month ago performance of nova instances with qemu was good. Regards Nikesh On Sun, Mar 15, 2015 at 1:28 AM, John Griffith <[email protected]> wrote: > > > On Sat, Mar 14, 2015 at 12:18 PM, Nikesh Kumar Mahalka < > [email protected]> wrote: > >> I am using below local.conf file >> http://paste.openstack.org/show/192320/ >> >> Actually i am deploying SOS-CI. >> I am using ubuntu 14.04 VM having 150 GB sda and 24GB RAM and 8 core cpu. >> Installing devstack is very fast on this VM and nova instances are >> creating on getting desired gerrit cinder events, >> >> But nova instances performance is very slow, >> I am using official trusty(ubuntu 14.04) image ( >> http://uec-images.ubuntu.com/trusty/current/trusty-server-cloudimg-amd64-disk1.img >> ) >> for nova instances. >> I am using flavor-id 3 for nova instances. >> Installing devstack in nova instance is taking 8-9 hrs. >> >> so wondering how to resolve this >> >> >> >> Regards >> Nikesh >> >> >> On Sat, Mar 14, 2015 at 8:10 PM, John Griffith < >> [email protected]> wrote: >> >>> >>> >>> On Sat, Mar 14, 2015 at 8:22 AM, Nikesh Kumar Mahalka < >>> [email protected]> wrote: >>> >>>> from where devstack instances consumes space for rootdisk, >>>> if i have a ubuntu setup with sda 150gb. >>>> >>>> devstack is creating two volume groups on loop-back files of 10gb each >>>> (stack-volumes-default and stack-volumes-lvmdriver-1). >>>> >>>> are they consume these volume groups for nova instances root-disk? >>>> >>>> >>>> Regards >>>> Nikesh >>>> >>>> _______________________________________________ >>>> Mailing list: >>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >>>> Post to : [email protected] >>>> Unsubscribe : >>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >>>> >>>> Those loopbacks are specifically for Cinder (well, the >>> stack-volume-default is actually for "nothing" right now but that's a whole >>> separate debate I have had with some folks and have given up on). >>> >>> Ephemeral Nova instances by default in devstack are going to consume >>> qcow files in /opt/stack/data/nova/instances (assuming you're still using >>> the same local.conf I gave you a while back). >>> >>> Thanks, >>> John >>> >>> >> Hi Nikesh, > > I believe I already went through this with one of your coworkers via IRC a > week or so ago. Check and make sure you're not using QEMU and that you're > using KVM for your virtualization. This of course assumes you're on a > modern processor that support nested virt. To check this, just set: > virt_type=kvm in your nova.conf. > > You may need to enable virt settings on your physical machines bios. > >
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