Review on some terms here:
BusRd means a processer tells other processors it wants to read the cache.
BusRdX means the processor tells other processors it wants to exclusively read the cache, which will move every other processor to the I state.
This MSI diagram is per cache line per processor.
Review on some terms here: BusRd means a processer tells other processors it wants to read the cache. BusRdX means the processor tells other processors it wants to exclusively read the cache, which will move every other processor to the I state. This MSI diagram is per cache line per processor.