DiDi: Mitigating the Performance Impact of TLB Shootdowns Using a Shared TLB Directory

@article{Villavieja2011DiDiMT,
  title={DiDi: Mitigating the Performance Impact of TLB Shootdowns Using a Shared TLB Directory},
  author={Carlos Villavieja and Vasileios Karakostas and Llu{\'i}s Vilanova and Yoav Etsion and Alex Ram{\'i}rez and Avi Mendelson and Nacho Navarro and Adri{\'a}n Cristal and Osman S. Unsal},
  journal={2011 International Conference on Parallel Architectures and Compilation Techniques},
  year={2011},
  pages={340-349}
}
Translation Look aside Buffers (TLBs) are ubiquitously used in modern architectures to cache virtual-to-physical mappings and, as they are looked up on every memory access, are paramount to performance scalability. The emergence of chip-multiprocessors (CMPs) with per-core TLBs, has brought the problem of TLB coherence to front stage. TLBs are kept coherent at the software-level by the operating system (OS). Whenever the OS modifies page permissions in a page table, it must initiate a coherency… CONTINUE READING
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