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4 cards from this section. Quick, good the night before a test.
What is Belady's anomaly?
Think about how page faults relate to memory frames.
Define fixed allocation in memory management.
Consider the implications of a 'fixed' number of frames for each process.
What anomaly may occur when increasing the number of frames?
Focus on the relationship between frame numbers and page faults.
True or False: Fixed allocation allocates frames based on the size of a process.
Consider the definition of fixed allocation.
Consider a system with 128 total frames and three processes needing 15, 25, and 50 frames, respectively. Calculate the number of frames allocated to each process based on proportional allocation principles.
Be careful with rounding off to the nearest integer.
In a scenario where high-priority processes frequently swap with low-priority processes, analyze how this impacts the performance of critical applications in the system.
Consider both immediate and long-term impacts on system performance.
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