Feeds

Red Hat sprints past ESX on VM running

Oh Qumranet all ye faithful

Mobile application security vulnerability report

Red Hat claims it can run five virtual machines (VMs) for every three that VMware's ESX runs in the same server hardware. Qumranet technology also enables it to run more Windows virtual desktops than VMware, too.

At a journalists' roundtable in London this week, Benny Schnaider, Qumranet CEO, said his - now Red Hat's - company's KVM (kernel-based virtualisation machine) hypervisor runs 52 VMs in a physical server, in which ESX can host a maximum of 35 VMs. Citrix Xenserver is worse: it can only host 30.

There are two reasons why KVM is better than ESX, according to Schneider.

First, KVM is newer code: when it started being designed four years ago Intel and AMD were already extending their processor instruction sets to add virtualization-supporting instructions. Early hypervisors like ESX had to cope with the previous generation of CPU chips, which had no virtualisation support, and so were larger and made less efficient use of server resources.

In other words, VMware is held up by legacy code baggage, and Qumranet is not, or so Red Hat says.

Second, Windows needs lots of memory and is a bulky VM in RAM terms, according to Schneider. He hinted that KVM can reduce this Windows VM memory burden, freeing up RAM for other VMs.

Qumranet also provides Red Hat VDI (virtual desktop infrastructure) technology, which supports more remote desktops and gives the users a better experience because of its SPICE rendering technology. It compresses the desktop data stream better and enables a Linux server to be a better Windows VDI host than a VMware or Citrix Xenserver server. Red Hat CTO Brian Stevens acknowledged that it's a little odd that Red Hat's desktop strategy is now focused on the virtualized Windows desktop.

Paul Cormier, Red Hat's SVP for engineering, said Red Hat's strategy is to enable customers to virtualise everywhere if they so choose, from the Android cell phone to the desktop. He probably doesn't mean we'll be able to run Vista on Android, though.

Learn more about KVM here (pdf). ®

Bridging the IT gap between rising business demands and ageing tools

More from The Register

next story
Manic malware Mayhem spreads through Linux, FreeBSD web servers
And how Google could cripple infection rate in a second
EU's top data cops to meet Google, Microsoft et al over 'right to be forgotten'
Plan to hammer out 'coherent' guidelines. Good luck chaps!
US judge: YES, cops or feds so can slurp an ENTIRE Gmail account
Crooks don't have folders labelled 'drug records', opines NY beak
FLAPE – the next BIG THING in storage
Find cold data with flash, transmit it from tape
Seagate chances ARM with NAS boxes for the SOHO crowd
There's an Atom-powered offering, too
Gartner: To the right, to the right – biz sync firms who've won in a box to the right...
Magic quadrant: Top marks for, er, completeness of vision, EMC
prev story

Whitepapers

Reducing security risks from open source software
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Application security programs and practises
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Consolidation: the foundation for IT and business transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.