Shift your Java applications into containers with Jelastic PaaS

Hardware virtualization was a great step forward in application hosting compared to the days of bare metal. Hypervisors allowed us to isolate multiple applications within one hardware platform, freeing us to use hardware resources more efficiently by hosting heterogeneous workloads on the same infrastructure. Still, virtual machines have massive overhead in terms of resource consumption, because each VM runs a fully dedicated operating system.

Containerization advances the benefits of virtualization much further by allowing containers to share the OS kernel, networking stack, file system, and other system resources of the host machine, all while using less memory and CPU overhead.

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from InfoWorld Cloud Computing