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A common problem of multithreaded applications or separate applications accessing shared memory is concurrency control. Current applications usually use locking to access shared memory, but this has several well-known disadvantages like bad scalability or bad maintainability. As many developers will have experienced, it is an extremely tedious task to choose the right locking granularity (not too many, not too few) and to apply and release them in the right order to avoid deadlocks.

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