CPU Reordering – What is actually being reordered?
We’ve all heard that a CPU may reorder access to memory. Yet if you’ve looked further you’d also see that cache coherence ensures the memory
We’ve all heard that a CPU may reorder access to memory. Yet if you’ve looked further you’d also see that cache coherence ensures the memory
Multi-threaded programming calls for semaphores, synchronized blocks, mutexes, or whatever your language happens to call them. Most of us basically understand why we need them:
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