Physics · Operating Systems
Which one of the following statements is correct with respect to a bounded buffer in shared memory systems?
- 1The consumer may have to wait for new items, but the producer can always produce new items.
- 2The consumer must wait if the buffer is empty, and the producer must wait if the buffer is full.✓
- 3The producer and consum er do not need synchronization because the shared buffer handles memory access automatically.
- 4Shared memory avoids all cache coherency issues during data migration among several caches.
Correct answer
The consumer must wait if the buffer is empty, and the producer must wait if the buffer is full.
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