Virtual computing
Virtual and distributed computing technology and applications

Ken Novak's Weblog


daily link  Tuesday, April 26, 2005


Microsoft - Introduction to Windows Script Technologies: Useful reference, tailored for system administrators.  10:42:21 PM  permalink  


daily link  Tuesday, April 12, 2005


Review: VMWare Workstation 5.0: One feature I hadn't noticed before: "VMware moved memory-sharing technology from their high-end GSX and ESX products into this workstation release to make teams more feasible for typical developer workstations. With memory-sharing, if you're running, say, two copies of Windows XP with each one allocated 256MB of RAM, you're not likely to take up 512MB of physical RAM. That's because VMware knows what's on every RAM page, and it will only keep one copy of any page that's identical between the two virtual machines. If the two machines diverge for some reason, the page gets cloned and each VM gets its own copy at that point, but in the meantime your physical RAM is used much more sparingly"  4:17:56 PM  permalink  


daily link  Monday, April 11, 2005


ActiveGrid - Grid Application Server: Interesting take on an application server with grid functions:  "The ActiveGrid Grid Application Server is a next-generation application server designed to scale applications across horizontal grids of commodity computers. The ActiveGrid Grid Application Server is built on top of the open source LAMP stack. In contrast to traditional three-tier architectures, where statically defined applications are bound to a particular deployment architecture, the ActiveGrid Grid Application Server interprets applications at runtime and can deploy them using a variety of proven deployment models and multiple data caching patterns. .. The ActiveGrid Grid Application Server extends the open source LAMP stack with grid-aware features such as dynamic node registration, data caching, session management, transaction management and interface fragment caching. These features are implemented as an Apache Module and as libraries that run within ModPHP, ModPython, ModPerl and Tomcat. The ActiveGrid Grid Application Server interprets applications at runtime and can make decisions based on context, such as how to most appropriately cache a set of data across the grid, or how to render a form fragment for a particular type of client and user role."  10:46:23 AM  permalink  

Copyright 2005 © Ken Novak.
Last update: 11/24/2005; 11:50:01 PM.
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