公开(公告)号：US20180300260A1

公开(公告)日：2018-10-18

申请号：US15488840

申请日：2017-04-17

Applicant: Intel Corporation

Inventor： Abhishek R. Appu ,  Joydeep Ray ,  James A. Valerio ,  Altug Koker ,  Prasoonkumar P. Surti ,  Balaji Vembu ,  Wenyin FU ,  Bhushan M. Borole ,  Kamal Sinha

IPC: G06F12/128 ,  G06F12/0811 ,  G06F13/40 ,  G06T1/20

Abstract: A hybrid hierarchical cache is implemented at the same level in the access pipeline, to get the faster access behavior of a smaller cache and, at the same time, a higher hit rate at lower power for a larger cache, in some embodiments. A split cache at the same level in the access pipeline includes two caches that work together. In the hybrid, split, low level cache (e.g., L1) evictions are coordinated locally between the two L1 portions, and on a miss to both L1 portions, a line is allocated from a larger L2 cache to the smallest L1 cache.