What is the use of page tables in Linux ?

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provide exclusive access of critical sections of code to processes or threads

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improve virtual memory performance with software-only implementation

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provide sharing of library executable code pages between several processes or threads

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ensure security through isolation of user-space and kernel-space memory areas

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provide support to virtual memory management

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provide mutual exclusion capabilities for threads of the same process

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improve cache hit performance with software-only implementation

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provide sharing of read-only memory pages between several processes or threads

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