公开(公告)号：US20230060225A1

公开(公告)日：2023-03-02

申请号：US17727031

申请日：2022-04-22

申请人： Apple Inc.

发明人： Tyler J. Huberty ,  Vivek Venkatraman ,  Sandeep Gupta ,  Eric J. Furbish ,  Srinivasa Rangan Sridharan ,  Stephan G. Meier

IPC分类号： G06F12/0891 ,  G06F12/0862 ,  G06F12/126 ,  G06F9/38

摘要： A cache may store critical cache lines and non-critical cache lines, and may attempt to retain critical cache lines in the cache by, for example, favoring the critical cache lines in replacement data updates, retaining the critical cache lines with a certain probability when victim cache blocks are being selected, etc. Criticality values may be retained at various levels of the cache hierarchy. Additionally, accelerated eviction may be employed if the threads previously accessing the critical cache blocks are viewed as dead.

公开(公告)号：US20240168887A1

公开(公告)日：2024-05-23

申请号：US18422584

申请日：2024-01-25

申请人： Apple Inc.

发明人： Tyler J. Huberty ,  Vivek Venkatraman ,  Sandeep Gupta ,  Eric J. Furbish ,  Srinivasa Rangan Sridharan ,  Stephen G. Meier

IPC分类号： G06F12/0891 ,  G06F9/38 ,  G06F12/02 ,  G06F12/0831 ,  G06F12/0862 ,  G06F12/126

CPC分类号： G06F12/0891 ,  G06F9/3877 ,  G06F12/0292 ,  G06F12/0833 ,  G06F12/0862 ,  G06F12/126 ,  G06F2212/1021

摘要： A cache may store critical cache lines and non-critical cache lines, and may attempt to retain critical cache lines in the cache by, for example, favoring the critical cache lines in replacement data updates. Multiple levels of criticality may be available for a given cache line and cache circuitry may adjust the criticality value of in response to a criticality event. One or more upper criticality levels may be masked when selecting a victim cache line for replacement.

公开(公告)号：US11822480B2

公开(公告)日：2023-11-21

申请号：US17727020

申请日：2022-04-22

申请人： Apple Inc.

发明人： Tyler J. Huberty ,  Vivek Venkatraman ,  Sandeep Gupta ,  Eric J. Furbish ,  Srinivasa Rangan Sridharan ,  Stephan G. Meier

IPC分类号： G06F12/0891 ,  G06F12/0862 ,  G06F9/38 ,  G06F12/126 ,  G06F12/02 ,  G06F12/0831

CPC分类号： G06F12/0891 ,  G06F9/3877 ,  G06F12/0292 ,  G06F12/0833 ,  G06F12/0862 ,  G06F12/126 ,  G06F2212/1021

摘要： A cache may store critical cache lines and non-critical cache lines, and may attempt to retain critical cache lines in the cache by, for example, favoring the critical cache lines in replacement data updates, retaining the critical cache lines with a certain probability when victim cache blocks are being selected, etc. Criticality values may be retained at various levels of the cache hierarchy. Additionally, accelerated eviction may be employed if the threads previously accessing the critical cache blocks are viewed as dead.

公开(公告)号：US11921640B2

公开(公告)日：2024-03-05

申请号：US17727031

申请日：2022-04-22

申请人： Apple Inc.

发明人： Tyler J. Huberty ,  Vivek Venkatraman ,  Sandeep Gupta ,  Eric J. Furbish ,  Srinivasa Rangan Sridharan ,  Stephan G. Meier

IPC分类号： G06F12/08 ,  G06F9/38 ,  G06F12/02 ,  G06F12/0831 ,  G06F12/0862 ,  G06F12/0891 ,  G06F12/12 ,  G06F12/126

CPC分类号： G06F12/0891 ,  G06F9/3877 ,  G06F12/0292 ,  G06F12/0833 ,  G06F12/0862 ,  G06F12/126 ,  G06F2212/1021

摘要： A cache may store critical cache lines and non-critical cache lines, and may attempt to retain critical cache lines in the cache by, for example, favoring the critical cache lines in replacement data updates, retaining the critical cache lines with a certain probability when victim cache blocks are being selected, etc. Criticality values may be retained at various levels of the cache hierarchy. Additionally, accelerated eviction may be employed if the threads previously accessing the critical cache blocks are viewed as dead.

公开(公告)号：US20230066236A1

公开(公告)日：2023-03-02

申请号：US17727020

申请日：2022-04-22

申请人： Apple Inc.

发明人： Tyler J. Huberty ,  Vivek Venkatraman ,  Sandeep Gupta ,  Eric J. Furbish ,  Srinivasa Rangan Sridharan ,  Stephan G. Meier

IPC分类号： G06F12/0891 ,  G06F12/0831 ,  G06F12/126 ,  G06F12/02

摘要： A cache may store critical cache lines and non-critical cache lines, and may attempt to retain critical cache lines in the cache by, for example, favoring the critical cache lines in replacement data updates, retaining the critical cache lines with a certain probability when victim cache blocks are being selected, etc. Criticality values may be retained at various levels of the cache hierarchy. Additionally, accelerated eviction may be employed if the threads previously accessing the critical cache blocks are viewed as dead.