Home » Mailing lists » Devel » [RFC] Virtualization steps
Re: Re: [RFC] Virtualization steps [message #2656 is a reply to message #2655] |
Thu, 13 April 2006 22:45 |
Herbert Poetzl
Messages: 239 Registered: February 2006
|
Senior Member |
|
|
On Thu, Apr 13, 2006 at 11:33:13PM +0200, Cedric Le Goater wrote:
> Herbert Poetzl wrote:
>
> > well, if the 'results' and 'methods' will be made
> > public, I can, until now all I got was something
> > along the lines:
> >
> > "Linux-VServer is not stable! WE (swsoft?) have
> > a secret but essential test suite running two
> > weeks to confirm that OUR kernels ARE stable,
> > and Linux-VServer will never pass those tests,
> > but of course, we can't tell you what kind of
> > tests or what results we got"
> >
> > which doesn't help me anything and which, to be
> > honest, does not sound very friendly either ...
>
> Recently, we've been running tests and benchmarks in different
> virtualization environments : openvz, vserver, vserver in a minimal
> context and also Xen as a reference in the virtual machine world.
>
> We ran the usual benchmarks, dbench, tbench, lmbench, kernerl build,
> on the native kernel, on the patched kernel and in each virtualized
> environment. We also did some scalability tests to see how each
> solution behaved. And finally, some tests on live migration. We didn't
> do much on network nor on resource management behavior.
I would be really interested in getting comparisons
between vanilla kernels and linux-vserver patched
versions, especially vs2.1.1 and vs2.0.2 on the
same test setup with a minimum difference in config
I doubt that you can really compare across the
existing virtualization technologies, as it really
depends on the setup and hardware
> We'd like to continue in an open way. But first, we want to make sure
> we have the right tests, benchmarks, tools, versions, configuration,
> tuning, etc, before publishing any results :) We have some materials
> already but before proposing we would like to have your comments and
> advices on what we should or shouldn't use.
In my experience it is extremely hard to do 'proper'
comparisons, because the slightest change of the
environment can cause big differences ...
here as example, a kernel build (-j99) on 2.6.16
on a test host, with and without a chroot:
without:
451.03user 26.27system 2:00.38elapsed 396%CPU
449.39user 26.21system 1:59.95elapsed 396%CPU
447.40user 25.86system 1:59.79elapsed 395%CPU
now with:
490.77user 24.45system 2:13.35elapsed 386%CPU
489.69user 24.50system 2:12.60elapsed 387%CPU
490.41user 24.99system 2:12.22elapsed 389%CPU
now is chroot() that imperformant? no, but the change
in /tmp being on a partition vs. tmpfs makes quite
some difference here
even moving from one partition to another will give
measurable difference here, all within a small margin
an interesting aspect is the gain (or loss) you have
when you start several guests basically doing the
same thing (and sharing the same files, etc)
> Thanks for doing such a great job on lightweight containers,
you're welcome!
best,
Herbert
> C.
|
|
|
|
|
[RFC] Virtualization steps
By: dev on Fri, 24 March 2006 17:19
|
|
|
Re: [RFC] Virtualization steps
|
|
|
Re: [RFC] Virtualization steps
|
|
|
Re: [RFC] Virtualization steps
By: ebiederm on Fri, 24 March 2006 19:53
|
|
|
Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
By: kir on Tue, 28 March 2006 06:45
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
By: dev on Wed, 29 March 2006 14:47
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
By: dev on Wed, 12 April 2006 08:22
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
By: dev on Fri, 14 April 2006 07:35
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
By: kir on Thu, 13 April 2006 22:51
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: [RFC] Virtualization steps
By: dev on Tue, 28 March 2006 09:00
|
|
|
Re: [RFC] Virtualization steps
|
|
|
Re: [RFC] Virtualization steps
By: ebiederm on Tue, 28 March 2006 15:03
|
|
|
Re: [RFC] Virtualization steps
|
|
|
Re: [RFC] Virtualization steps
|
|
|
Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
By: kir on Tue, 28 March 2006 20:50
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
By: ebiederm on Tue, 28 March 2006 21:51
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: [RFC] Virtualization steps
By: dev on Tue, 28 March 2006 09:02
|
|
|
Re: [RFC] Virtualization steps
|
|
|
Re: [RFC] Virtualization steps
|
|
|
Re: [RFC] Virtualization steps
By: ebiederm on Tue, 28 March 2006 16:31
|
|
|
Re: [RFC] Virtualization steps
|
|
|
Re: [RFC] Virtualization steps
|
|
|
Re: [RFC] Virtualization steps
By: ebiederm on Tue, 28 March 2006 16:15
|
|
|
Re: [RFC] Virtualization steps
By: dev on Wed, 29 March 2006 01:39
|
|
|
Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
By: ebiederm on Tue, 28 March 2006 16:42
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: Re: [RFC] Virtualization steps
|
|
|
Re: [RFC] Virtualization steps
By: ebiederm on Fri, 24 March 2006 18:36
|
|
|
Re: [RFC] Virtualization steps
|
|
|
Re: [RFC] Virtualization steps
By: ebiederm on Mon, 27 March 2006 18:45
|
|
|
Re: [RFC] Virtualization steps
By: dev on Tue, 28 March 2006 08:51
|
|
|
Re: [RFC] Virtualization steps
By: serue on Tue, 28 March 2006 12:53
|
|
|
Re: [RFC] Virtualization steps
|
|
|
Re: [RFC] Virtualization steps
|
|
|
Re: [RFC] Virtualization steps
By: ebiederm on Wed, 29 March 2006 20:47
|
|
|
Re: [RFC] Virtualization steps
|
|
|
Re: [RFC] Virtualization steps
By: dev on Thu, 30 March 2006 13:51
|
|
|
Re: [RFC] Virtualization steps
By: ebiederm on Tue, 28 March 2006 21:58
|
Goto Forum:
Current Time: Fri Oct 18 01:51:41 GMT 2024
Total time taken to generate the page: 0.05280 seconds
|