SB-Fetch
Laith M. AlBarakat, Paul V. Gratz, Daniel A. Jiménez · 2020
Shared-memory, multi-threaded applications often require programmers to insert thread synchronization primitives (i.e. locks, barriers, and condition variables) in critical sections to synchronize data access between processes. Scaling performance requires balanced per-thread workloads with little time spent in critical sections. In practice, however, threads often waste time waiting to acquire locks/barriers, leading to thread imbalance and poor performance scaling. Moreover, critical sections often stall data prefetchers that mitigate the effects of waiting by ensuring data is preloaded in core caches when the critical section is done.