Invention Grant
US08549263B2 Counter-based memory disambiguation techniques for selectively predicting load/store conflicts 有权
基于反向的内存消歧技术,用于有选择地预测加载/存储冲突

Counter-based memory disambiguation techniques for selectively predicting load/store conflicts
Abstract:
A memory access management technique is disclosed, one embodiment of which relates to a technique to issue loads to a memory ahead of older store operations corresponding to the same target address. A processor may include load buffer entries having predictor table entries associated therewith, including saturation counters to record history of previous conflicts between loads and stores corresponding to the same target address. A watchdog unit may disable memory disambiguation (MD) if the MD causes too high a misprediction rate for load operation and store operation conflicts. In one embodiment, the MD is disabled if a flush counter value reaches a threshold.
Public/Granted literature
Information query
Patent Agency Ranking
0/0