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OpenVZ vs KVM, or Car vs Bike

Today I came across the page which compares OpenVZ to KVM to Xen. Leaving Xen aside, from that one it looks like KVM is ways better, it got all the green pluses, while OpenVZ got all the dull minuses, except for a few features where it says "limited support".

For example, from the author's POV, KVM supports cool features such as "Independent kernel" and "Independent kernel modules" , while OpenVZ lacks all that. I am not mentioning "Full control on sockets and processes" -- definitely, such things as sockets and processes are completely out of control when you use OpenVZ, to the extent that you can not distinguish between a process, a socket, and a potato! (Was that sarcasm? Yes, in fact I don't have an idea of what do they mean by that statement...)

But such a comparison is inspiring, so I invested 15 minutes of my time and made my own, titled Car vs bike. It clearly states that a car is better than a bike -- its capacity is higher and it doesn't require lots of muscle power. After all, it has powered steering wheel (not mentioning powered windows) and can come with an automatic gearbox, air conditioning and even a sunroof! A bike, from the other side, is missing a lot of features -- even windshield wipers are absent which are standard for every car since about 1925!

Actually, I didn't stop there and made yet another comparison, titled Bike vs car. Now it's perfectly clear that a bike is a better choice than a car, since it's cheaper, ecologically clean, and you can even take it with you on a train! A car is big and heavy, it requires periodical refuelling and a parking spot.

Both comparisons are on the openvz wiki, so feel free to edit and add more features!

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Comments

( 6 comments — Leave a comment )
(Anonymous)
Apr. 7th, 2010 09:52 pm (UTC)
table header
I think you misplaced the table header in
http://wiki.openvz.org/Bike_vs_car
k001
Apr. 7th, 2010 09:58 pm (UTC)
Re: table header
thanks, fixed now
egorfine
Apr. 8th, 2010 01:36 am (UTC)
fabulous!
ext_188806
Apr. 8th, 2010 07:26 am (UTC)
I really had a good laugh with it. It's the usual approach in comparing apples with peaches. After all they just wanted to promote their KVM Hosting. :)
(Anonymous)
Apr. 14th, 2010 02:22 pm (UTC)
even if it is like comparing two different things. Most users compare KVM and OpenVZ - so it is important. But for shure you can make a comparision where something wins what you want.
ext_231797
Apr. 17th, 2010 03:17 am (UTC)
Nice analogy
I like the analogy. Once I reported on performance comparisons work of containers vs. a full-virtualization solution. OpenVZ won by an order of magnitude on all the graphs (CPU, Network IO, ...). The professor who I reported to got very mad (his advisor was either Popek or Goldberg, one of authors of the "Formal requirements for virtualizable architectures" paper).
( 6 comments — Leave a comment )

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