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Dec
11
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BEA have just pre-announced JRockit Liquid VM - a Java VM that only requires VMWare (not anadditional OS). I'm not sure yet what this really means - but it is interesting. If Firefox didn't barf on BEA's web-site I could probably find out more.
What this means is that JRockit can run directly on the VMWare Hypervisor (vs. running in an OS that's running on the Hypervisor) - so you can imagine there's some resource saving. However, it also means you have a dependency on VMWare which is popular but not quite as popular say as Windows, Solaris or Linux. I also guess it means that those 'instances' running only the Hypervisor are no longer general purposes computers - ie. you can't run shell scripts or other applications and tools (unless they are developed to also work with the hypervisor). I would have thought that lighter-weight Solaris Zones (Containers) could deliver the same utilization gains without making the same compromises.
