On Mon, Aug 8, 2011 at 3:59 PM, Jeff Sturm <
jeff.sturm@xxxxxxxxxx> wrote:
> My point is that Amazon has a choice to run their cloud on technology
> derived from either Xen or KVM. They may have started with Xen because it
> was the first to market, or a superior technology, or free, but whatever the
> reason I presume they have chosen it over competitors. And they've likely
> done far more analysis than I have of the virtualization market. I've done
> my own limited evaluation of the products, but I also put stock into what I
> hear and see from others.
>
>
>
> I didn't mean to imply with my original post that Amazon built their cloud
> on Xen's tools. We know they use at least the hypervisor and Linux kernel,
> and these may or may not be extensively modified, I don't know. The user
> space tools to manage Xen deployments are bare bones in the community
> edition, so many users have either bought/downloaded alternative management
> tools, or created their own. Amazon clearly put a lot of effort into the
> design and implementation of their cloud, and I presume anyone creating
> their own cloud will do the same.
>
>
>
> When I think of the Xen/KVM arguments I usually consider the architectural
> design issues and the features and performance of the core components
> (kernel, hypervisor). Management tools are important, but not an
> interesting point of debate to me since one technology doesn't necessarily
> have much of an advantage over the other in that regard, and layers like
> libvirt tend to make the tools agnostic anyway. It's like debating the
> merits of two different operating systems based on the design of the
> kernel. Operating systems need much more than a kernel to succeed in the
> market, but it's not a stretch to claim the kernel is the most important
> component.
>
>
>
> From: Scott Damron [mailto:
sdamron@xxxxxxxxx]
> Sent: Monday, August 08, 2011 4:09 PM
> To: Jeff Sturm
> Cc:
admin@xxxxxxxxxxx; Xen User-List
> Subject: Re: [Xen-users] KVM vs XEN source
>
>
>
> You mention Amazon as using XEN like it is some off the shelf XEN install.
> It is definitely not. The same goes for 3Tera/CA. Sure, they use XEN, but
> that stuff is no where NEAR the stock XEN software. When people pimp the
> fact that Amazon or some other large institution uses XEN, it makes everyone
> believe that they can have a setup like those mentioned above with little to
> no effort. Please justify that type of comment when you make them.
>
>
>
> Thanks!
>
> On Mon, Aug 8, 2011 at 3:01 PM, Jeff Sturm <
jeff.sturm@xxxxxxxxxx> wrote:
>
> Xen has some very large deployments (Amazon EC2). It's not easy to say what
> kind of market share KVM has these days, assuming a minority of all Red Hat
> customers actually use it. I think it's fair to say KVM has an uphill
> battle to fight with the likes of Xen and VMWare on the market. Ultimately
> if both products are very good, small margins of performance won't matter to
> most users.
>
>
>
> Red Hat took a big gamble on a niche virtualization technology, since in my
> opinion they don't have the market muscle to make KVM a dominant player.
> Time will tell how this works out for them. I've also seen posts from
> people saying (in effect): "You should try out KVM, it is very good." I
> believe they're probably right. The problem for KVM supporters is they
> haven't given me any reason to switch. (And before someone mentions it, I
> don’t count dom0 support as a reason, since I have no business requirement
> to run RHEL 6 on each piece of hardware I own.)
>
>
>
> From:
xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> [mailto:
xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of
>
admin@xxxxxxxxxxx
> Sent: Monday, August 08, 2011 2:09 PM
> To: 'Xen User-List'
> Subject: RE: [Xen-users] KVM vs XEN source
>
>
>
> Given enough effort, anything is possible. At this point in time, I
> definitely think Xen is better than KVM. If Xen development stalled and KVM
> development continued to move forward, KVM could become better at some point
> in time. Predications tend to be tricky, though. About 50 years ago,
> everybody assumed we would all drive flying cars by now.
>
>
>
> -----Original Message-----
> From:
xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> [mailto:
xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Bruno Steven
> Sent: Monday, August 08, 2011 10:12 AM
> To: Xen User-List
> Subject: [Xen-users] KVM vs XEN source
>
>
>
> Hi Dear,
>
> I read in foruns , sites especialized that KVM will be better than XEN
> sourcer on next years. It is possible ? Somebody has some link that bring
> comparation beteween Xen souce and KVM ?
>
> Thank very much
>
> --
> Bruno Steven - Administrador de sistemas
> LPIC-2 / MCSA-Windows 2003 / CompTIA Security+
>
>
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>
>
> --
>
> Never wrestle with a pig. You'll only get dirty and the pig likes it.
--
Never wrestle with a pig. You'll only get dirty and the pig likes it.
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