Mechanisms Limited Direct Execution

OSTEP - Mechanisms Limited Direct Execution

There are many problems associated with virtualizing a CPU. The most important problem we have to solve is that we need to maintain control of the processes running, so they don’t take over the system. Other problems such as the need to switch environments and resources for every different process the CPU works on, also impact CPU efficiency. Basic Technique: Limited Direct Execution Direct execution: The Operating System provides access to the CPU directly to each process.
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