RowClone: Copying Data Inside DRAM
9 hours ago
- #memory-optimization
- #data-copy
- #DRAM
- RowClone enables internal data copying within DRAM using back-to-back row activations, eliminating the need for data to travel through the CPU or memory bus.
- This method reduces latency by over 11x and energy consumption by over 70x for a 4KB page copy, with minimal additional DRAM area.
- It addresses inefficiencies in bulk data movement operations common in systems like operating systems, databases, and datacenter workloads.
- RowClone inspired further research into processing-in-memory, leading to developments like LISA for inter-subarray movement and other PIM proposals for computation.