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Articles for the keywords: xen
14 Jun 2013 Unbreakable Enterprise Kernel Release 2 Quarterly Update 4 [31396]
Includes driver updates as well as fixes for bugs and security issues

Oracle has announced that the fourth quarterly update release of the Unbreakable Enterprise Kernel Release 2 (Version 2.6.39-400.109) for Oracle Linux 5 and 6 has been published. This release includes driver updates as well as fixes for bugs and security issues.

Some notable highlights include:

  • OpenFabrics Alliance (OFED) 1.5.5 Infiniband stack
  • Btrfs bug fixes and improvements
  • Xen improvements
  • Numerous device driver updates (e.g. storage devices, network cards)

For more details, please consult the release notes.
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17 Jan 2013 Virtualization Performance on Joyent's Public Cloud: Zones, KVM, Xen [29391]
Assessing the Options with Brendan Gregg

Brendan Gregg explains the virtualization technologies Joyent uses to run its high performance public cloud: Zones and KVM on SmartOS. He considers the performance of these technologies from the aspects of characteristics, block diagrams, internals, and results, explaining that Zones adds no overhead, whereas Xen (no longer in use at Joyent) and KVM do, which could limit network throughput to as much as a quarter of its potential. Joyent customers are therefore encouraged to deploy on Zones to ensure better performance, observability and simplicity. This may entail compiling their applications for SmartOS or, if they insist on running Linux or Windows, employing hardware virtualization (KVM).
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08 Oct 2012 Bossie Awards 2012: The Best Open Source Networking and Security Software [27726]
A Large and Growing Range of Offerings

In its Best of Open Source Software (BOSSIE) 2010 awards, InfoWorld has recognized a number of tools for building a network, running a network, and ensuring that the network is secure. Nominees include:

  • DD, WRT, HTTPS, Everywhere, True Crypt, FreeOTFE, Eraser, Darik's Boot and Nuke, Vyatta, Open vSwitch, Elastix, Anti,Spam SMTP Proxy Server, iSpy, OpenNMS, Cacti, Wireshark, Snor, Sagan, Suricata, Snorby, Nmap, Metasploit, BackTrack, Burp Suite, dc3dd , Ophcrack, John the Ripper, GnuPG, FindBugs

Read on for details.
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07 Sep 2011 Bossie Awards 2011: The Best Open Source Desktop and Mobile Software [24556]
Winnners Include VirtualBox VM

Here are the categories for which 2011 Bossie Award winners have been named:

  • Best Open Source Software
  • Best Open Source Desktop and Mobile Software
  • Best Open Source Application Development Software
  • Best Open Source Data Center and Cloud Software

VirtualBox won with this endorsement: "A free-to-use and open source virtualization solution for desktop environments, VirtualBox changed hands from Sun to Oracle when the latter bought the former. That hasn't changed the pace or tenor of its development, though, and the last few revisions -- including a major update to the left of the decimal point -- have continued to pile on reasons to ditch commercial alternatives. For anyone who even dabbles in virtualization, it's gone from useful to must-have."
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08 Jun 2011 Will Oracle Make a Move to Red Hat's KVM for Oracle VM? [24240]
Not Very Likely Says Wim Coekaerts

If you are waiting expectantly for Oracle to move Oracle VM from Xen to KVM (Red Hat's Kernel Based Virtual Machine,) Roddy Rodstein in his blog "Oracle VM: Xen today, KVM tomorrow?" suggests that you not hold your breath. After first providing an informative history on the development of both Xen and KVM, Rodstein then cites the expert opinion of Wim Coekaerts who blogs that Oracle has no really compelling reason to make the suggested shift to KVM. So take a breath.
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