公开(公告)号：US20190310943A1

公开(公告)日：2019-10-10

申请号：US15945244

申请日：2018-04-04

Applicant: SAP SE

Inventor： Stefan Noll ,  Norman May ,  Alexander Martin Böhm ,  Jens Thilo Teubner

IPC: G06F12/0891 ,  G06F12/0897 ,  G06F17/30

Abstract: Disclosed herein are system, method, and computer program product embodiments for cache partitioning to accelerate concurrent workload performance of in-memory databases. An embodiment operates by storing a first bitmask, associating the first bitmask with a first processor core, setting a subset of the bits of the first bitmask, wherein the subset of the bits of the first bitmask represents a first portion of shared last-level cache, and wherein any part of the first bitmask excluding the subset of the bits of the first bitmask represents a second portion of the lowest-level cache, and disallowing eviction of any cache line in the second portion of the lowest-level cache by the first processor core.

公开(公告)号：US10891234B2

公开(公告)日：2021-01-12

申请号：US15945244

申请日：2018-04-04

Applicant: SAP SE

Inventor： Stefan Noll ,  Norman May ,  Alexander Martin Böhm ,  Jens Thilo Teubner

IPC: G06F12/0891 ,  G06F16/22 ,  G06F16/2455 ,  G06F12/0897 ,  G06F12/084 ,  G06F12/0864 ,  G06F12/126

Abstract: Disclosed herein are system, method, and computer program product embodiments for cache partitioning to accelerate concurrent workload performance of in-memory databases. An embodiment operates by storing a first bitmask, associating the first bitmask with a first processor core, setting a subset of the bits of the first bitmask, wherein the subset of the bits of the first bitmask represents a first portion of shared last-level cache, and wherein any part of the first bitmask excluding the subset of the bits of the first bitmask represents a second portion of the lowest-level cache, and disallowing eviction of any cache line in the second portion of the lowest-level cache by the first processor core.