Migration from UML to XEN based VPS web hosting Boosts Performance for Web 2 PR Site

Chennai,TN,India,April 29,2008--Small business marketing andnews portal, PressReleasePoint.com, has significantly improved site performance anduser experience by migrating from UML to XEN based virtualisation technology. Theirrecent move from shared hosting service to a virtual private server hosting servicerented from Linode failed to deliver any significant site performance improvements.Various performance tuning excercises like PHP opcode caching, in memory caching ofserialized PHP objects, MySQL optimisation, Apache congfiguration changes and squid caching improved site performance to some extent. Significant and immediateimprovement in site performance was achieved only after migrating to XEN based VPShosting plan "XENODE" from Linode.

"User-mode Linux is generally considered to provide lower performance than somecompeting technologies, such as Xen and OpenVZ. Future work in adding support forVirtualization Technology to UML may reduce this disadvantage. Often cited as astrength of Xen (a competing technology) is support for Thread Local Storage (TLS).This is now also supported in the latest UML kernels. Xen concentrates onvirtualising the whole machine, and thus all systems running on a Xen machine arereally virtual machines. In UML, the host machine is not virtualised in any way, andonly guest systems are true virtual machines" - Wikipedia

Growing number of small business marketing professionals, PR firms, reporters,editors, researchers and journalist using free press release services fromPressReleasePoint will enjoy faster website performance and page loading time.Better hosting also means that users will get more website features and functions tohelp their business. Site has not seen any down time since migration to XEN. Thereis 100% improvement in site load time and page submit time after migration to XEN.Site traffic has doubled after migration to XEN. This shows their commitment tobecome a leading resource for media marketing and unique portal for business andtechnology news.

Powerful LAMP technology based open source content management server is used fortheir database driven free press release distribution website. Fedora 8 Core runningon XEN virtualised private server is used for L(inux) part of the LAMP stack. Xen isa free software virtual machine monitor for IA-32, x86, x86-64, IA-64 and PowerPC970 architectures. It allows several guest operating systems to be executed on thesame computer hardware at the same time. A Xen system is structured with the Xenhypervisor as the lowest and most privileged layer.[1] Above this layer are one ormore guest operating systems, which the hypervisor schedules across the physicalCPUs. The first guest operating system, called in Xen terminology "domain 0" (dom0),is booted automatically when the hypervisor boots and given special managementprivileges and direct access to the physical hardware. The system administrator logsinto dom0 in order to start any further guest operating systems, called "domain U"(domU) in Xen terminology.

"Server load factor is the measure of CPU utilisation. Our server load factor whilerunning on UML VPS is 7.0 or 8.0 during busy hours. This reduced to 0.25 to 0.30immediately after migrating to XEN based VPS. Many thanks to Linode team who helpedus with this significant improvement".

Unlike many free press release sites which revamped their website appearance to bebuzzword compliant, PressReleasePoint.com is built to be a web2.0 site from day one.Site architecture derived from a leading open source content management solution cansupport heavy personalisation, customisation and latest web2.0 features from itscore. Open source technology powering PressReleasePoint.com comes with inbuilt AJAXsupport which allows the site to effortlessly deliver rich internet experience forits users. Such rich set of features naturally puts heavy load on the database andoperating system. Only superior VPS plans can handle such heavy CPU loads.

About PressReleasePoint:

PressRelea sePoint is a small business public relations agency dedicated to pressrelease writing and distribution services. PressReleasePoint.com is a free pressrelease distribution website launched to help online marketers generate mediavisibility and maximize online publicity. Both online marketers and PR firms cansubmit free press release to PressReleasePoint.com to reach their target audiencedirectly as well as through print media outlets, online media channels, blogs,search engines etc. Site attracts more than 2000 visitors per day. Multiple programshave been designed to attract 10,000 unique visitors per day. Site will be soonmoved to Intel Xeon based multicore dedicated server.

Contacts:Saravanan, Webmaster,PressReleasePoint, 044 22222656Chennai, Indiasaravanan2@pressreleasep oint.comhttp://www.pressrelea sepoint.com/

Source: Express-Press-Release.com

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