Harvesting Sub-Microsecond CXL Memory Stalls with LiteSwitch
L ITE S WITCH is presented, a lightweight hardware-software co-design that opportunistically harvests otherwise idle cycles caused by CXL memory accesses and recovers up to 80% of the performance lost due to CXL access latency, enabling the adoption of CXL memory without prohibitive slowdowns.
Nanqinqin Li, Yuhong Zhong, Asaf Cidon et al.
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