MONGO_YIELD_CORE_FOR_SMT is defined as the yield instuction, but yield is just a nop in arm64.
Using an "isb" instruction is a better implementation. The Instruction Synchronization Barrier will create a very small delay without taking other CPU resources, which is required while spinning on a spinlock.
- related to
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WT-6872 Replace the yield instructions with an ISB
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- Closed
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