alt Hacker Newsthe best way to prevent false sharing is by making it so that no two threads are in a position to access the same data structure which may be inconsistent because it is being written to. embrace message passing.
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IshKebab • today at 9:33 AM
Message passing is definitely a good solution in many cases, but shared data structures are often significantly faster. Even Go doesn't restrict you to message passing, even though it is very focused on channels.
Some of us work with industrial SoCs, with puny in-order Cortex-A7 cores and tiny L1/L2 caches. Sometimes, you really need to optimize for the hardware and micro-architecture you have in order to hit the performance goals required and message passing isn't always the answer.