Container Isolation Model
What the boundary around a container fences off, what caps it, and what every workload on a host still shares. Treating it as a small machine is where density and security reasoning both break.
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- Container vs Virtual Machine5 questions
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- Overcommit & Noisy Neighbours5 questions
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page 2 of 2A hardware-virtualized sandbox gives each container its own small guest kernel — what does that cost you?
level: seniorimportance: nice to knowfreq 30%
basics
~20 sStart-up rises from milliseconds to roughly tens or hundreds of milliseconds, density falls because every instance holds a resident guest kernel, I/O crosses a virtualized device path, and a minimal guest may not support everything a workload expects.
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