Write-once (cache coherence)

In cache coherency protocol literature, Write-Once was the first MESI protocol defined. It has the optimization of executing write-through on the first write and a write-back on all subsequent writes, reducing the overall bus traffic in consecutive writes to the computer memory.

Source: Wikipedia — Write-once (cache coherence) (CC BY-SA 4.0)

Write-once (cache coherence)

In cache coherency protocol literature, Write-Once was the first MESI protocol defined. It has the optimization of executing write-through on the first write and a write-back on all subsequent writes, reducing the overall bus traffic in consecutive writes to the computer memory.

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Source: Wikipedia "Write-once (cache coherence)" · CC BY-SA 4.0

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