DE69736544D1 - Verfahren zur Verminderung der Anzahl von Kohärenz-Zyklen in einem verzeichnisbasierten Cachekohärenz-Speichersystem unter Verwendung eines Speicherzustands-Cachespeichers - Google Patents
Verfahren zur Verminderung der Anzahl von Kohärenz-Zyklen in einem verzeichnisbasierten Cachekohärenz-Speichersystem unter Verwendung eines Speicherzustands-CachespeichersInfo
- Publication number
- DE69736544D1 DE69736544D1 DE69736544T DE69736544T DE69736544D1 DE 69736544 D1 DE69736544 D1 DE 69736544D1 DE 69736544 T DE69736544 T DE 69736544T DE 69736544 T DE69736544 T DE 69736544T DE 69736544 D1 DE69736544 D1 DE 69736544D1
- Authority
- DE
- Germany
- Prior art keywords
- coherency
- cache
- directory
- reducing
- storage system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
- G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
- G06F12/0806—Multiuser, multiprocessor or multiprocessing cache systems
- G06F12/0815—Cache consistency protocols
- G06F12/0817—Cache consistency protocols using directory methods
- G06F12/082—Associative directories
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/763,703 US5809536A (en) | 1996-12-09 | 1996-12-09 | Method for reducing the number of coherency cycles within a directory-based cache coherency memory system uitilizing a memory state cache |
US763703 | 1996-12-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69736544D1 true DE69736544D1 (de) | 2006-10-05 |
DE69736544T2 DE69736544T2 (de) | 2007-08-23 |
Family
ID=25068574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69736544T Expired - Lifetime DE69736544T2 (de) | 1996-12-09 | 1997-10-13 | Verfahren zur Verminderung der Anzahl von Kohärenz-Zyklen in einem verzeichnisbasierten Cachekohärenz-Speichersystem unter Verwendung eines Speicherzustands-Cachespeichers |
Country Status (4)
Country | Link |
---|---|
US (1) | US5809536A (de) |
EP (1) | EP0847011B1 (de) |
JP (1) | JP3974983B2 (de) |
DE (1) | DE69736544T2 (de) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5835941A (en) * | 1995-11-17 | 1998-11-10 | Micron Technology Inc. | Internally cached static random access memory architecture |
US5940864A (en) * | 1997-04-14 | 1999-08-17 | International Business Machines Corporation | Shared memory-access priorization method for multiprocessors using caches and snoop responses |
US6055373A (en) * | 1997-04-28 | 2000-04-25 | Ncr Corporation | Computer system including a digital signal processor and conventional central processing unit having equal and uniform access to computer system resources |
US6378047B1 (en) * | 1997-07-07 | 2002-04-23 | Micron Technology, Inc. | System and method for invalidating set-associative cache memory with simultaneous set validity determination |
US6055610A (en) * | 1997-08-25 | 2000-04-25 | Hewlett-Packard Company | Distributed memory multiprocessor computer system with directory based cache coherency with ambiguous mapping of cached data to main-memory locations |
US6052760A (en) * | 1997-11-05 | 2000-04-18 | Unisys Corporation | Computer system including plural caches and utilizing access history or patterns to determine data ownership for efficient handling of software locks |
US6032228A (en) * | 1997-11-26 | 2000-02-29 | International Business Machines Corporation | Flexible cache-coherency mechanism |
US6587931B1 (en) * | 1997-12-31 | 2003-07-01 | Unisys Corporation | Directory-based cache coherency system supporting multiple instruction processor and input/output caches |
US6343359B1 (en) * | 1999-05-18 | 2002-01-29 | Ip-First, L.L.C. | Result forwarding cache |
US6519685B1 (en) * | 1999-12-22 | 2003-02-11 | Intel Corporation | Cache states for multiprocessor cache coherency protocols |
US6405292B1 (en) * | 2000-01-04 | 2002-06-11 | International Business Machines Corp. | Split pending buffer with concurrent access of requests and responses to fully associative and indexed components |
US7124252B1 (en) | 2000-08-21 | 2006-10-17 | Intel Corporation | Method and apparatus for pipelining ordered input/output transactions to coherent memory in a distributed memory, cache coherent, multi-processor system |
US6868481B1 (en) * | 2000-10-31 | 2005-03-15 | Hewlett-Packard Development Company, L.P. | Cache coherence protocol for a multiple bus multiprocessor system |
US20040260887A1 (en) * | 2003-04-11 | 2004-12-23 | Sun Microsystems, Inc. | Multi-node computer system implementing speculative proxy transactions |
US7127562B2 (en) * | 2003-06-11 | 2006-10-24 | International Business Machines Corporation | Ensuring orderly forward progress in granting snoop castout requests |
US7200718B2 (en) | 2004-04-26 | 2007-04-03 | Broadband Royalty Corporation | Cache memory for a scalable information distribution system |
CN100541449C (zh) * | 2005-03-14 | 2009-09-16 | 松下电器产业株式会社 | 总线控制器 |
US7827425B2 (en) * | 2006-06-29 | 2010-11-02 | Intel Corporation | Method and apparatus to dynamically adjust resource power usage in a distributed system |
US7581068B2 (en) * | 2006-06-29 | 2009-08-25 | Intel Corporation | Exclusive ownership snoop filter |
US7644293B2 (en) * | 2006-06-29 | 2010-01-05 | Intel Corporation | Method and apparatus for dynamically controlling power management in a distributed system |
US20080065837A1 (en) * | 2006-09-07 | 2008-03-13 | Sodick Co., Ltd. | Computerized numerical control system with human interface using low cost shared memory |
US8151059B2 (en) * | 2006-11-29 | 2012-04-03 | Intel Corporation | Conflict detection and resolution in a multi core-cache domain for a chip multi-processor employing scalability agent architecture |
US8028131B2 (en) * | 2006-11-29 | 2011-09-27 | Intel Corporation | System and method for aggregating core-cache clusters in order to produce multi-core processors |
US8994533B2 (en) * | 2006-11-30 | 2015-03-31 | Patent Navigation, Inc. | Conditional RFID |
EP2405361A4 (de) * | 2009-03-06 | 2012-12-19 | Fujitsu Ltd | Computersystem, steuerverfahren, aufzeichnungsmedium und steuerprogramm |
US8782323B2 (en) * | 2009-10-30 | 2014-07-15 | International Business Machines Corporation | Data storage management using a distributed cache scheme |
US9477600B2 (en) | 2011-08-08 | 2016-10-25 | Arm Limited | Apparatus and method for shared cache control including cache lines selectively operable in inclusive or non-inclusive mode |
US11687459B2 (en) * | 2021-04-14 | 2023-06-27 | Hewlett Packard Enterprise Development Lp | Application of a default shared state cache coherency protocol |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4394731A (en) * | 1980-11-10 | 1983-07-19 | International Business Machines Corporation | Cache storage line shareability control for a multiprocessor system |
US4410944A (en) * | 1981-03-24 | 1983-10-18 | Burroughs Corporation | Apparatus and method for maintaining cache memory integrity in a shared memory environment |
US4775955A (en) * | 1985-10-30 | 1988-10-04 | International Business Machines Corporation | Cache coherence mechanism based on locking |
US5097409A (en) * | 1988-06-30 | 1992-03-17 | Wang Laboratories, Inc. | Multi-processor system with cache memories |
US5317716A (en) * | 1988-08-16 | 1994-05-31 | International Business Machines Corporation | Multiple caches using state information indicating if cache line was previously modified and type of access rights granted to assign access rights to cache line |
US4928225A (en) * | 1988-08-25 | 1990-05-22 | Edgcore Technology, Inc. | Coherent cache structures and methods |
JPH0680499B2 (ja) * | 1989-01-13 | 1994-10-12 | インターナショナル・ビジネス・マシーンズ・コーポレーション | マルチプロセッサ・システムのキャッシュ制御システムおよび方法 |
JP2825906B2 (ja) * | 1990-02-01 | 1998-11-18 | 株式会社日立製作所 | 計算機システム |
US5291442A (en) * | 1990-10-31 | 1994-03-01 | International Business Machines Corporation | Method and apparatus for dynamic cache line sectoring in multiprocessor systems |
US5191649A (en) * | 1990-12-21 | 1993-03-02 | Intel Corporation | Multiprocessor computer system with data bus and ordered and out-of-order split data transactions |
US5313609A (en) * | 1991-05-23 | 1994-05-17 | International Business Machines Corporation | Optimum write-back strategy for directory-based cache coherence protocols |
JPH06103477B2 (ja) * | 1991-12-05 | 1994-12-14 | 工業技術院長 | 並列キャッシュメモリ |
US5524212A (en) * | 1992-04-27 | 1996-06-04 | University Of Washington | Multiprocessor system with write generate method for updating cache |
US5398325A (en) * | 1992-05-07 | 1995-03-14 | Sun Microsystems, Inc. | Methods and apparatus for improving cache consistency using a single copy of a cache tag memory in multiple processor computer systems |
US5450563A (en) * | 1992-10-30 | 1995-09-12 | International Business Machines Corporation | Storage protection keys in two level cache system |
JPH06208507A (ja) * | 1993-01-11 | 1994-07-26 | Casio Comput Co Ltd | キャッシュメモリシステム |
JPH06274416A (ja) * | 1993-03-23 | 1994-09-30 | Matsushita Electric Ind Co Ltd | キャッシュメモリ装置 |
US5522057A (en) * | 1993-10-25 | 1996-05-28 | Intel Corporation | Hybrid write back/write through cache having a streamlined four state cache coherency protocol for uniprocessor computer systems |
JP3410535B2 (ja) * | 1994-01-20 | 2003-05-26 | 株式会社日立製作所 | 並列計算機 |
EP0681240B1 (de) * | 1994-05-03 | 2001-01-10 | Hewlett-Packard Company | Anordnung mit Duplikat des Cache-Etikettenspeichers |
-
1996
- 1996-12-09 US US08/763,703 patent/US5809536A/en not_active Expired - Lifetime
-
1997
- 1997-10-13 EP EP97308075A patent/EP0847011B1/de not_active Expired - Lifetime
- 1997-10-13 DE DE69736544T patent/DE69736544T2/de not_active Expired - Lifetime
- 1997-11-27 JP JP32604997A patent/JP3974983B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5809536A (en) | 1998-09-15 |
EP0847011B1 (de) | 2006-08-23 |
JP3974983B2 (ja) | 2007-09-12 |
DE69736544T2 (de) | 2007-08-23 |
EP0847011A2 (de) | 1998-06-10 |
JPH10260898A (ja) | 1998-09-29 |
EP0847011A3 (de) | 1999-12-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |