What are some common memory ordering mistakes in programming?
Common mistakes include assuming sequential consistency, neglecting memory barriers, and not understanding the impact of compiler optimizations.
Can you explain what sequential consistency means?
Sequential consistency is a memory model where operations appear to be executed in a strict order, which can be misleading in concurrent programming.
How do memory barriers help in avoiding these mistakes?
Memory barriers enforce an order on memory operations, ensuring that certain reads and writes are completed before others, thus preventing race conditions.
What are some tools to detect memory ordering issues?
Tools like ThreadSanitizer, Helgrind, and Intel Inspector can help detect memory ordering issues in concurrent applications.
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