Lan Barnes wrote:
I'm confused (in Linux) on how this saves, since I would expect that throughput, memory, and context switching on VM boxen would _at best_ only equal running all those services on one box. What am I missing?
Sure. But the vast majority of our servers are idle 99% of the time. The stuff sits on separate servers mainly for reliability and maintainability reasons. Also sometimes we need different versions of stuff, as you pointed out in your previous post about CM. We only need the rare burst of speed and it's very unlikely that any two machines need that burst of speed at the same time.
Doesn't it add up to the same number of instructions per time uint, the same memory load, the same disk space (except VM should need marginally more for context switching)?
Yep. Except we can do it all on one motherboard and power supply and unit of rack space instead of spreading it out over many.
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