Red Hat Enterprise Linux 5.3 is out. It adds 150 updates and enhancements, including enhanced virtualization scalability, increased scalability of virtualized x86-64 environments, support for Intel’s quad-core 45nm Core i7 Nehalem processors, OpenJDK, the open source implementation of Java SE 6, Systemtap functionality and power management updates.

It can support virtual servers with up to 32 virtual CPUs and 80GB of memory. Physical server limits have been expanded to 126 CPUs and 1TB main memory. Support for Hugepage memory and Intel Extended Page Tables (EPT) is supposed to improve the performance of virtual servers.

More devices can be allocated to each virtual server (guest), enabling the virtualization of applications with heavy I/O requirements.

Red Hat says unaudited results show gains of 1.7x for commercial applications and up to 3.5x for high-performance technical computing applications with Nehalem.

The company says that RHEL 5.3 is the first enterprise-ready solution with a fully open source Java stack when combined with JBoss Enterprise Application Platform.

Red Hat's CTO Brian Stevens Keynotes at SYS-CON's International Virtualization Conference & Expo

Cloud Computing Technology Contributors of 2009
10Gen, 3Leaf Systems, 6fusion International, Absolute Performance, Ajaxo, Alentus, Appirio, Appistry, Aptaria, Arena Maxtronic, Arista Networks, Asankya Networks, BitRock, BlueLock, Boomi , Box.net, Canaan Partners, Casdex, Chris Richardson Consulting, CITTIO, Cloud Architects, Cloud9 Analytics, CloudRamp, CloudScale Networks, Cloudscape.ws, CloudWorks, CNI Systems, CohesiveFT, CollabNet, Concentric, Cordys, Cronus Partners, CSRware, CuperTek, Cycle Computing, Dataline, Dell, DNAmail, eBay, Elastra, Engine Yard, Enki Consulting, Enomaly, Excelian, Flexiscale, Forrester, Fortress ITX, G.ho.st, Gear6, GigaSpaces, GoGrid, GraphLogic, GridGain, IBRIX, InfoQ, IntelePeer, IronKey, Iterative Designs, ITO America, Jamcracker, Joyent, JumpBox, Just Skill, Kaavo, Linxter, Mohr Davidow Ventures, MessageLabs, Mimecast, Model Metrics, Moderro Technologies, Moka5 (MokaFive), Mosso, Netmagic, NewServers, Ocarina Networks, Panorama Software, Parabon Computation, Parallels, ParaScale, Patni Computer Systems, Peer1 Networks, Platform Computing, PLX Technology, ProjectLocker, Promise Technology, Qlayer, QlikTech, Rackspace, RampRate, Red Hat, Reliance Globalcom, RightScale, Robson Taylor, Rogue Wave, rPath, Salesforce.com, Sapotek, Saugatuck Technology, ScanSafe, ServePath, ServiceCloud, SIMtone, SkillSoft, Skytap, SmugMug, SOASTA, Solace Systems, Spiceworks, SpiderOak, Symphony Services, Tap In Systems, Teneros, Terremark, Transitive, Trend Micro, Union Square Advisors, Unisys, Univa UD, uTest, Vertica, Weber Shandwick, Widen Enterprises, XCalibre, Zabovo.com, Zeus Technology, and Zuora.

Virtualization Technology Contributors of 2009
123Together.com, 361 Degrees, 3PAR, 8e6 Technologies, A10 Networks, Aastra, Accario, Accellion, AccessFlow, AceNet, ACMA, Acronis, Actional, activePDF, Acxiom, Adaptec, ADC, Adder, Adexis, Adtran, Agilysys, Agito Networks, AirMagnet, Akorri, ALADDIN Knowledge Systems, Alcatel-Lucent, Alert Logic, AlterPoint, Altor Networks, AMAX, AMCC, Amyuni, Apani, APC, APCON, APM Experts, Appistry, Applied Innovations, Apptio, Aquantia, Arastra, Aravo, Arbor Solutions, ArcSight, Areohive Networks, Array Networks, Arrow ECS, ARTEC - Computer, Asigra, Asoka USA, Aspera, Astaro Internet Security, Atempo, ATEN Technology, Attune Systems, AutoVirt, Avanade, Avaquest, Avaya, Aventiv-NomaDesk, Avocent, AVTECH, AXIOMTEK, BakBone, BBN Technologies, BDNA, BEA Systems, Bedsole, Benchmark Capital, Berkeley Varitronics, BigFix, Bivio Networks, Blade Network, Blue Lane, BlueArc, BluePoint, BlueStripe, Bobcares, Bosanova, Brigh Technologies, Brocade, CA, CalAmp, Capitial Trust Ventures, Cassatt, Catbird, Cayenne, CDG, Ceedo, Certeon, Champion Solutions, Check Point Software, Chip PC, CiRBA, Citihub, Citrix Systems, ClearCube, CommVault, Compass America, Compellent, Compugen, Computer Lab International, Concentsus, Configuresoft, Continuity Software, Coraid, Courion, Coyote Point Systems, cPanel, Credit Suisse, Crosswalk, CrystalTech Web Hosting, CSC, Data Domain, Databarracks, DataCore, DataDirect, Datagardens, DataPipe, DataSynapse, DC3 Solutions, Dell, EqualLogic, Desktone, Devon IT, Digipede, Doctrino Systems, DocuSign, DoubleTake Software, Dynamic Network Factory, DynamicOps, Ecora Software, eG Innovations, Egenera, Electric Cloud, Electrorack, Embotics, Emulex, Endeavors Technology, Enigmatic, Enomaly, Entuity, EqualLogic, Ericom, EVault, Evolving Solutions, Exinda, eXludus, Extentrix Systems, F5Networks, FalconStor, Faronics, FastScale, FastSoft, FOCUS Consulting, Fortinet, Fortisphere, Fugitive LLC, Fujitsu Systems, Fusepoint, FusionStorm, Gateworks, Getronics, Gibraltar Solutions, GlassHouse Technologies, GlobalFluency, GlobalSCAPE, GlobalSign, Green Hills Software, Grid Dynamics, GRIDtoday, groupSPARK, Hiperware, Hitachi Data Systems, Hubspan, Hurricane Electric, Hyper9, HyPerformix, Hyperic, I2 Technology, IGEL Technology, Ignite Consulting, Illumita, IMEX Research, Incipient, Insight Venture Partners, InstallFree, INSYSTEK,Integrien, Ipswitch, Isilon Systems, iTrinegy, KACE, Kaseya, KI Lipton, Kidaro, Kingston Technology, KnownHost, Lanamark, LeftHand Networks, Lenovo, Leostream, Liquid Computing, Lucid8, LynuxWorks, Magirus, Mailtrust, Mainline, ManageIQ, ManageSoft, Marathon Technologies, Marketo, Markitects, McAfee, Meridian IT, Metron, Microsemi, Microserv, Mid-Atlantic Computers, MIMOS, Mimosa Systems, Mindbridge Software, Miva Merchant, MonoSphere, Morph Labs, Mxi Technologies. mySoftIT, Nagarro, Namescape, Ncomputing, NEC, Nemertes, NeoPath, Neoware, Net Magic, NetApp, Neterion, NetEx, NetIQ, Netuitive, Network Appliance, Neverfail, New Age Technologies, New Idea Engineering, NewTek, Nexenta, NextIO. Nimsoft, Niyuta, NoMachine, Nortel, Novell, Old Road Computing, Omnitron, On The Avenue, ONStor, Opalis Software, Open Kernel Labs, OpenHosting, OpenSpan, Optaros, Opus Capital, PacketTrap, Palm, Inc., Panda Security, Pano Logic, Pattern Insight, Peak IP Solutions, PHD Technologies, Phoenix Technologies, Phurnace Software, Pillar Data Systems, Pinnacle Cart, Pivot3, Platespin, Proofpoint, ProServeIT, ProSync, Provision Networks, , Q1 Labs, QG Software, Qualys, Quest Software, R1Soft, Racemi, RACKWISE, Radiant Logic, Raritan, Raxco Software, Red Hat, Reflex Security, Regan Technologies, Resolution Enterprises, RF Code, Riverbed, RSA Security, Ruckus Wireless, Sagent Solutions, SanDisk, SAVVIS, ScaleMP, Scalent Systems, ScienceLogic, ScriptLogic, Seanodes, Secure Command, Secure Computing, Sentillion, ServInt, Shavlik, Silpion, SIMtone, Singularity Technologies, Sitemasher, SmarterTools, Socialcast, SoftLayer, SolarWinds, SolutionSet, Sonasoft, SSH Communications Security, StackSafe, Starfire, SteelEye Technology, StillSecure, StoneFly, Stonesoft, Stoneware, StorageCraft, StorageNetworking.org, StorMagic, Stratus, Sun Microsystems , Oren Tech, SunView, Supermicro,, Surgient, SWsoft, Sycros, Symantec, Systar, Telecompute, The 451 Group, The Israeli Association of Grid Technologies, TheInfoPro, ThinkEquity Partners, ThinPrint, Third Brigade, Tideway, Tigerpaw, TOA Solutions, ToutVirtual, Train Signal, TRANGO Virtual Processors, Tresys Technology, Trigence, Tripwire, Twisted Pair Solutions, UK-2 Limited, Ulteo, UniPrint, United Devices, V.i. Labs, VaST Systems, VDIworks, VeeAm Software, Veodia, Verio, VeriSign, Vicom, Vigilar, VirtenSys, Virtera, Virtual Computer, Virtual Iron, VirtualizationChat.com, VirtualLogix, Virtugo, Virtutech, Visionapp, VisionCore, VKernel, VM People, VM6, VMLogix, vmSight, vThere, Vyatta, Wyse Technology, XDS, XenoCode, Xiotech, xkoto, Xsigo.

AJAX & RIA Technology Contributors of 2009
3Tera, Abaque, Accenture, AccuRev, AccuSoft, Active Endpoints, Active Inquiry, ActiveState, Actuate, Adaptive Blue, Adaptive Path, Adobe Systems, Afrous Dashboard, Agitar Software, AGOSYS, AJAX 13, Akamai, Alfresco, Allurent, Alpha Software, Altova, Amazon.com, Appcelerator, Appeon, Apple Computer, Applibase, , AppTrigger, Apress, Aptana, Aragon Consulting, Art & Logic, Ask Pivot, Asperon, Astreya, Atlassian, Aztecsoft, Azul Systems,, BackBase, Barracuda Networks, Baynote, BEA Systems, Bizwhazee, Black Duck, Blogtronix, BlueFolder, BlueTie, BondDesk, Borland, BOSSdev, Bottomline, BScaler, Bungee Labs, Burton Group, CambrianHouse, Canoo Engineering, Cassatt, Cast Iron, Catalyst Resources, Cenzic, Chordiant, CIGNEX, Cisco Systems, Cision, Citrix Systems, Claria, Clearspring, CodeFlare, Codign, Coghead, Cognizant, ComponentArt, ComponentOne, Conference Guru, Coradiant, Corent Technology, CoreSpeed, Corizon, Crescendo Networks, CSS Group, cStar Technologies, CSW Group, Curl, Cybage, Cynergy Systems, Dapper, Dassault Systèmes, DataDirect, Day Software, dCongo, deCarta, Dell, Denim Group, Denodo, Design Universe, DeviceAnywhere, Dialcom, Dice.com, DiscountASP.NET, DotNetNuke, Drangonfly, DreamFace Interactive, Dynamic Toolbar, DynaTrace, EffectiveUI, Egnyte, Ektron, Elastic Path, Elementool, EMC, Encanvas, ENOVIA Matrix One, EnterpriseDB, Ephox, esnips, ESRI, Etelos Systems, etouch, Evans Data, Exadel, ezAJAX, F5 Networks, FeedbackFX, Fig Leaf Software, Finetooth, Fiorano Software, firstRain, FiveRuns, Foldera, Force10 Networks, Fortify, Forum Systems, Fotango, Freewebs, froglogic, Funambol, FundingPost, Furtherahead.com, Fusion Technologies, Gaggle.Net, GemStone, genius.com, Genuitec, Gizmox, Glassbox, GoGrid, Gomez, Inc., GreenHat, GreenPoint, GridApp Systems, Groupware Technology, Helmi Technologies, Hitachi America, Hosting.com, HostMySite.com, HP Software, Hummer Winblad Venture Partners, Ibiza Software, IBM, ICEsoft, ILOG, Impetus, iNetOffice, Infinilogic, Infragistics, Ingres, Inimit, Innominds, Innoopract, inpowr, InsideView, Instancy, Instantiations, Integration New Media, Intel, IntelliObjects, Intelliun, Interactive Networks, InterSystems, Isomorphic, IT Mill, ITtoolbox, JackBE, JadeLiquid, JasperSoft, Javeline, JBoss, JellyCloud, JetBrains, Jive Software, K2, Kaazing, Kapow, Keynote Systems, KonoLive, Krugle, Laszlo Systems, Lightstreamer, M/Gateway, Magic Software, Mainsoft, Manning Publications, Marathon Technologies, Mashery, Mashmatrix, MaxiScale, MB Technologies, Metia Software, Microsoft, Midnight Coders, Molecular, MomentumSI, Morfik, Neocleus, Neotys, Netfective, Netmite, NetSuite, Nexaweb, Nextapp, NextAxiom, NextDB.net, Nirvanix, Nitobi, Northwoods Software, Novell, Novulo, OASIS, ObjectWave, OpenLink, OpenLogic, OpenSpot, OpenWave, OPNET, OpSource, Oracle, OrangeHRM, OSS Nokalva, Parasoft, Passport Corporation, Pentaho, Perforce, Pervasive Software, Primavera Systems, PushToTest, QLogic, Quasar Technologies, Quest Software, Rackable Systems, Radialpoint, RadView Software, Rearden Commerce, Recursion Software, Red Hat, Roaring Penguin, Salesforce.com, SAP, Saven Technologies, Scalix, Servoy, SkillBuilders, Skyway, SL Corporation, SlickEdit, SnapLogic, SOA Software, Software AG, Software FX, Sonic Software, SoonR, Splunk, SugarCRM, Sun Microsystems, Sybase, iAnywhere Solutions, Symphoniq, TeaLeaf Technology, Tele Atlas, telerik, ThinkFree, TIBCO Software, TriveraTechnologies, Valtech, Visual Mining, VMware, Vocus, WatchFire, WaveMaker, Web Spiders, WebAppCabaret, Webtide, Wipro, WSO2, XAware, Xenos, Xythos Software, Yahoo!, Zapatec, ZCubes, Zimbra, ZOHO, and Zoovy.

SOA / WOA Technology Contributors of 2009
/n Software, Aberdeen Group, Abovo Group, AccelTree, activePDF, ActiveServers, Actuate, AdventNet, AgentWare, Agilent Technologies, AgilePath, Altova, AmberPoint, AMD, Amentra, American Coders, Amyuni, AppSense, Apptricity, Aprimo, Arbortext, Attachmate, Autodesk, Azul Systems, BEA Systems, B-hive, Black Hat, BlackDuck Software, BlueNote Networks, BMC Software, Borland, BroadVision, Business Objects, CA, CalAmp, CapGemini, Catalyst Systems, CheckFree, ClearApp, Codagen, COGNOS, ComponentSource, Composite Software, CSC, Compuware, Covalent, DevelopMentor, DigitalAssets, Eclipse.org, Embarcadero Technologies, EnterpriseDB, Fair Isaac, Farata Systems, Fiorano, Forum Systems, Fuego, Fujitsu, Gartner Group, Gizmox Systems, Global Knowledge, Gluecode Software, GT Software, Gutenberg Communications, HP, HiT Software, Hitachi, HP Bluestone, Information Builders, Interwoven, Ipedo, iTKO, J9 Technologies, Jacada, JustSystems, Layer 7 Technologies, LogicLibrary, LogiXML, MacroVision, Maestro CMS, Magoo Software, McAfee.com, Mellanox, Micro Focus, Mindreef, MKS / Mortice Kern Systems, NASTEL Technologies, NEON Systems, NetIQ, OMG, Object Management Group, ObjectBuilders, ObjectFocus, Objective Solutions, Open Text, OpenLogic, OpenMake, OpenSpan, OpTier, Optika, Oracle, PaperThin, PerfectXML, Perficient, Inc, preEmptive Solutions, Progress Software, Prolifics, Rackspace, Red Hat / JBoss, Rogue Wave, RSA Security, SAP, Sapiens, Seagull Software, Seapine Software, ServerLogic, SOALogix, SOAMatrix, Sonic Software, SpikeSource, StrikeIron, Sybase, Telelogic, Teradata, Thinstall, Thoughtworks, TIBCO Software, Tidal Software, VeriSign, Versant, Versata, Vertigo Software, Visual Numerics, Vitria, Vordel, Wakesoft, Web Age Solutions, WebLayers, Webmetrics, Websense, Wily Technology, WinMill Software, WSO2, XMethods, XMLCities, ZapThink, and Zend Technologies.