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geoctl | 1 month ago

With modern CXL/PCIe, I guess it's not going to be that stupid to claim that RAM/memory controller is slowly becoming I/O on its own.

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throwaway94275|1 month ago

Old IBM's term for RAM was "storage."

geoctl|1 month ago

I wonder whether the current huge funding in AI will ever lead to a revolution in computer architecture. Modern PCIe/CXL is already starting to blur the difference between memory and I/O. Maybe the future is going to be that CPUs, RAM, storage devices, GPUs and other devices are going to directly address one another like a mesh network. Maybe the entire virtual memory model will change to include everything to be addressed via a unified virtual memory space from a process/CPU perspective with simple read/write syscalls that translate into network packets flowing between the CPU and the destination (e.g. RAM/GPU/NVMe) and vice versa.