On Fri, May 24, 2013 at 11:37:04AM -0400, Peter Feiner wrote:
On Wed, May 22, 2013 at 7:31 PM, Peter Feiner pe...@gridcentric.ca wrote:
Since some security driver operations are costly, I think it's
worthwhile to reduce the scope of the security manager lock or
increase the granularity by
On Wed, May 22, 2013 at 7:31 PM, Peter Feiner pe...@gridcentric.ca wrote:
Since some security driver operations are costly, I think it's
worthwhile to reduce the scope of the security manager lock or
increase the granularity by introducing more locks. After a cursory
look, the security manager
One theory I had was that the virDomainObjListSearchName method could
be a bottleneck, becaue that acquires a lock on every single VM. This
is invoked when starting a VM, when we call virDomainObjListAddLocked.
I tried removing this locking though didn't see any performance
Hello Daniel,
I've been working on improving scalability in OpenStack on libvirt+kvm
for the last couple of months. I'm particularly interested in reducing
the time it takes to create VMs when many VMs are requested in
parallel.
One apparent bottleneck during virtual machine creation is libvirt.
On Thu, May 16, 2013 at 12:09:39PM -0400, Peter Feiner wrote:
Hello Daniel,
I've been working on improving scalability in OpenStack on libvirt+kvm
for the last couple of months. I'm particularly interested in reducing
the time it takes to create VMs when many VMs are requested in
parallel.
How many CPU cores are you testing on ? That's a good improvement,
but I'd expect the improvement to be greater as # of core is larger.
I'm testing on 12 Cores x 2 HT per code. As I'm working on teasing out
software bottlenecks, I'm intentionally running fewer tasks (20 parallel
creations)
On Thu, May 16, 2013 at 01:00:15PM -0400, Peter Feiner wrote:
How many CPU cores are you testing on ? That's a good improvement,
but I'd expect the improvement to be greater as # of core is larger.
I'm testing on 12 Cores x 2 HT per code. As I'm working on teasing out
software
On Thu, May 16, 2013 at 1:18 PM, Daniel P. Berrange berra...@redhat.com wrote:
On Thu, May 16, 2013 at 01:00:15PM -0400, Peter Feiner wrote:
How many CPU cores are you testing on ? That's a good improvement,
but I'd expect the improvement to be greater as # of core is larger.
I'm testing
On Thu, May 16, 2013 at 06:18:57PM +0100, Daniel P. Berrange wrote:
On Thu, May 16, 2013 at 01:00:15PM -0400, Peter Feiner wrote:
How many CPU cores are you testing on ? That's a good improvement,
but I'd expect the improvement to be greater as # of core is larger.
I'm testing on 12
