硬件工程师们还在不断地把更多的处理功能加到小型设备上，但不断出现的操作障碍却是如影随形。
Hardware engineers continue to pack more processing power into smaller devices but the real barrier to increasing miniaturization arises from human abilities to interact with them.
在应用程序执行存储操作之前执行写障碍将完成这种跟踪。
A write barrier executed before the application performs a store operation does this tracking.
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