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  <title>OpenVZ</title>
  <subtitle>OpenVZ</subtitle>
  <author>
    <name>OpenVZ</name>
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  <updated>2010-04-07T19:39:00Z</updated>
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  <entry>
    <id>urn:lj:livejournal.com:atom1:openvz:31471</id>
    <author>
      <name>Kir Kolyshkin</name>
    </author>
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    <title>OpenVZ vs KVM, or Car vs Bike</title>
    <published>2010-04-07T19:39:00Z</published>
    <updated>2010-04-07T19:39:00Z</updated>
    <category term="fun"/>
    <category term="openvz"/>
    <category term="kvm"/>
    <content type="html">Today I came across &lt;a href="http://perfohost.com/kvm.vps.html" rel="nofollow" target="_blank"&gt;the page&lt;/a&gt; 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".&lt;br /&gt;&lt;br /&gt;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! (&lt;a href="http://www.youtube.com/watch?v=-qzeflmJvEU" target="_blank" rel="nofollow"&gt;Was that sarcasm? Yes,&lt;/a&gt; in fact I don't have an idea of what do they mean by that statement...)&lt;br /&gt;&lt;br /&gt;But such a comparison is inspiring, so I invested 15 minutes of my time and made my own, titled &lt;a href="http://wiki.openvz.org/Car_vs_bike" target="_blank" rel="nofollow"&gt;Car vs bike&lt;/a&gt;. 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!&lt;br /&gt;&lt;br /&gt;Actually, I didn't stop there and made yet another comparison, titled &lt;a href="http://wiki.openvz.org/Bike_vs_car" target="_blank" rel="nofollow"&gt;Bike vs car&lt;/a&gt;. 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.&lt;br /&gt;&lt;br /&gt;Both comparisons are on the openvz wiki, so feel free to edit and add more features!</content>
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