On 07/08/2012 08:47 AM, Pasi Kärkkäinen wrote:
There are other Xen-based virtualization solutions out there aswell with full
support.
That's true, but I'm guessing that a lot of people on this list are here
specifically because they're not paying for support.
Whether that's true or not, if
On Tue, Jun 05, 2012 at 01:50:30PM -0700, Gordon Messmer wrote:
On 06/04/2012 11:36 PM, Pasi Kärkkäinen wrote:
Xen PV has been rock solid for me :)
Maybe, if we ignore the fact that you seem to be familiar with the
problem of xenconsoled failing and preventing guests from booting.
The
On Sat, May 12, 2012 at 02:38:34PM -0400, Steve Thompson wrote:
On Sun, 6 May 2012, Pasi Kärkkäinen wrote:
with fork performance I assume you're comparing Xen PV to KVM ?
Yes, PV has disadvantage (per design) for that workload, since the hypervisor
needs to check and verify each new process
On Fri, May 11, 2012 at 03:46:43PM -0700, Gordon Messmer wrote:
A late reply, but hopefully a useful set of feedback for the archives:
On 04/20/2012 05:59 AM, Rafa?? Radecki wrote:
Key factors from my opint of view are:
- stability (which one runs more smoothly on CentOS?)
I found that
On 06/04/2012 11:36 PM, Pasi Kärkkäinen wrote:
Xen PV has been rock solid for me :)
Maybe, if we ignore the fact that you seem to be familiar with the
problem of xenconsoled failing and preventing guests from booting.
Xen is supported by Red Hat support in RHEL5.
Yes, and RHEL5 will be
On 05/16/2012 02:47 PM, Luke S. Crawford wrote:
(how are the paravirt drivers in KVM these days? I have a server
full of kvm guests running some ancient version of ubuntu I will be
moving to RHEL6 shortly.)
Since RHEL guests have the virtio block drivers built-in, I never get
around to
On Fri, May 11, 2012 at 03:46:43PM -0700, Gordon Messmer wrote:
A late reply, but hopefully a useful set of feedback for the archives:
On 04/20/2012 05:59 AM, Rafał Radecki wrote:
Key factors from my opint of view are:
- stability (which one runs more smoothly on CentOS?)
I found that
On 05/12/2012 12:46 AM, Gordon Messmer wrote:
A late reply, but hopefully a useful set of feedback for the archives:
Well let me share my experience as well.
On 04/20/2012 05:59 AM, Rafał Radecki wrote:
Key factors from my opint of view are:
- stability (which one runs more smoothly on
On Sun, 6 May 2012, Pasi Kärkkäinen wrote:
with fork performance I assume you're comparing Xen PV to KVM ?
Yes, PV has disadvantage (per design) for that workload, since the hypervisor
needs to check and verify each new process page table, and that has some
performance hit.
For good fork
On 05/12/2012 12:46 AM, Gordon Messmer wrote:
A late reply, but hopefully a useful set of feedback for the archives:
On 04/20/2012 05:59 AM, Rafał Radecki wrote:
Key factors from my opint of view are:
- stability (which one runs more smoothly on CentOS?)
I found that xenconsoled could
A late reply, but hopefully a useful set of feedback for the archives:
On 04/20/2012 05:59 AM, Rafał Radecki wrote:
Key factors from my opint of view are:
- stability (which one runs more smoothly on CentOS?)
I found that xenconsoled could frequently crash in Xen dom0, and that
guests would
On Mon, Apr 23, 2012 at 01:02:03PM -0400, Steve Thompson wrote:
On Mon, 23 Apr 2012, Peter Peltonen wrote:
I've been quite happy with Xen under CentOS5. For CentOS6 the
situation is a bit more problematic, as RH switched to KVM and left
Xen behind.
I used Xen for about four or five
On Mon, Apr 23, 2012 at 11:01:12PM +0300, Peter Peltonen wrote:
Hi,
On Mon, Apr 23, 2012 at 10:54 PM, aurfalien aurfal...@gmail.com wrote:
I also prefer KVM over Xen, mainly I don;t have to do anything special when
maintaining the env.
But I haven't notice an improvement over Xen.
On 04/24/2012 10:58 AM, Mihamina Rakotomandimby wrote:
LXC sounds interesting: are there any yum repositries / RPMs /
tutorials for CentOS available?
You dont need rpms: the libvirt directly use the LXC API.
A tutorial: http://goo.gl/kQOxm
there are some limitations with libvirt/lxc at
On 04/23/2012 06:44 PM, Peter Peltonen wrote:
I would add some LXC pins for quick ehanced chroot, depending on the use
case
LXC sounds interesting: are there any yum repositries / RPMs /
tutorials for CentOS available?
You dont need rpms: the libvirt directly use the LXC API.
A tutorial:
On 04/24/2012 11:58 AM, Mihamina Rakotomandimby wrote:
On 04/23/2012 06:44 PM, Peter Peltonen wrote:
I would add some LXC pins for quick ehanced chroot, depending on the use
case
LXC sounds interesting: are there any yum repositries / RPMs /
tutorials for CentOS available?
You dont need
On 04/20/2012 04:23 PM, Dmitry Cherkasov wrote:
On CentOS6 all is fine
with KVM right out of the box.
Never used XEN so cannot compare.
Same here.
I would add some LXC pins for quick ehanced chroot, depending on the use
case.
I think the OP should provide more details: What is benchmarked
Hi,
On Mon, Apr 23, 2012 at 6:29 PM, Mihamina Rakotomandimby
miham...@rktmb.org wrote:
I would add some LXC pins for quick ehanced chroot, depending on the use
case.
LXC sounds interesting: are there any yum repositries / RPMs /
tutorials for CentOS available?
I've been quite happy with Xen
On Mon, 23 Apr 2012, Peter Peltonen wrote:
I've been quite happy with Xen under CentOS5. For CentOS6 the
situation is a bit more problematic, as RH switched to KVM and left
Xen behind.
I used Xen for about four or five years before switching to KVM. I like
KVM better in every way, and for my
On Apr 23, 2012, at 1:02 PM, Steve Thompson wrote:
On Mon, 23 Apr 2012, Peter Peltonen wrote:
I've been quite happy with Xen under CentOS5. For CentOS6 the
situation is a bit more problematic, as RH switched to KVM and left
Xen behind.
I used Xen for about four or five years before
Hi,
On Mon, Apr 23, 2012 at 10:54 PM, aurfalien aurfal...@gmail.com wrote:
I also prefer KVM over Xen, mainly I don;t have to do anything special when
maintaining the env.
But I haven't notice an improvement over Xen.
I really like the fact that the guest OS has a stock kernel, etc..
I
On Apr 23, 2012, at 4:01 PM, Peter Peltonen wrote:
Hi,
On Mon, Apr 23, 2012 at 10:54 PM, aurfalien aurfal...@gmail.com wrote:
I also prefer KVM over Xen, mainly I don;t have to do anything special when
maintaining the env.
But I haven't notice an improvement over Xen.
I really like
On Apr 23, 2012, at 4:01 PM, Peter Peltonen wrote:
Hi,
On Mon, Apr 23, 2012 at 10:54 PM, aurfalien aurfal...@gmail.com wrote:
I also prefer KVM over Xen, mainly I don;t have to do anything special when
maintaining the env.
But I haven't notice an improvement over Xen.
I really like
On Mon, Apr 23, 2012 at 11:11 PM, aurfalien aurfal...@gmail.com wrote:
As for stock kernels, you mean HVMs right?
I was speaking more about PVMs which is faster and more flexible then HVMs.
No, with pygrub you can run a stock kernel on a PVM domU:
http://wiki.xensource.com/xenwiki/PyGrub
I
On 04/23/2012 10:11 PM, aurfalien wrote:
On Apr 23, 2012, at 4:01 PM, Peter Peltonen wrote:
Hi,
On Mon, Apr 23, 2012 at 10:54 PM, aurfalien aurfal...@gmail.com wrote:
I also prefer KVM over Xen, mainly I don;t have to do anything special when
maintaining the env.
But I haven't notice
On 04/23/12 5:12 PM, Dennis Jacobfeuerborn wrote:
The PVM/HVM distinction isn't really that relevant any more on modern
hardware and modern hypervisors since most of the overhead is eliminated
with hardware features (Nested Page Tables, etc.) and special guest drivers.
special guest drivers is
On 04/24/2012 03:08 AM, John R Pierce wrote:
On 04/23/12 5:12 PM, Dennis Jacobfeuerborn wrote:
The PVM/HVM distinction isn't really that relevant any more on modern
hardware and modern hypervisors since most of the overhead is eliminated
with hardware features (Nested Page Tables, etc.) and
Hi all.
I am currently building a small test cloud based on Eucalyptus 2.0.3 and
CentOS 5.8 x64. I have a choice which hypervisor to use: KVM or XEN.
KVM is the default in CentOS 6 but I have read also many good things (for
example PV guest machines, isolation between Dom0 and DomU) about XEN.
On 04/20/2012 01:59 PM, Rafał Radecki wrote:
I am currently building a small test cloud base..
...
Could you share your experience in these areas?
try the centos-virt list ? Lots of people there ( including people who
write a lot of the code behind some of these things! )
--
Karanbir Singh
On 4/20/2012 8:59 AM, Rafał Radecki wrote:
Hi all.
I am currently building a small test cloud based on Eucalyptus 2.0.3 and
CentOS 5.8 x64. I have a choice which hypervisor to use: KVM or XEN.
KVM is the default in CentOS 6 but I have read also many good things (for
example PV guest
Why?
2012/4/20 Jonathan Vomacka juvi...@gmail.com
On 4/20/2012 8:59 AM, Rafał Radecki wrote:
Hi all.
I am currently building a small test cloud based on Eucalyptus 2.0.3 and
CentOS 5.8 x64. I have a choice which hypervisor to use: KVM or XEN.
KVM is the default in CentOS 6 but I have
Hi,
KVM if used as it is will show very poor performance on CentOS5. To
achieve better results you need to update kernel to at least 2.6.32
and compile newer versions of libvirt and qemu. On CentOS6 all is fine
with KVM right out of the box.
Never used XEN so cannot compare.
Dmitry Cherkasov
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