What is Cache coherency?

In a multicore CPU, the mechanism that keeps copies of the same address in different cores' caches consistent, for example by invalidating other copies when one core writes.

Field: CPUs and architecture

Related terms

Amdahl's law Branch prediction Cache memory DMA (direct memory access) DVFS (dynamic voltage and frequency scaling) GPU Instruction set architecture (ISA) Interrupt IPC Microcontroller

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