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1. 发明授权

EP1069507B1 Processus de libération de pages pour mécanisme d'adressage virtuel 有权
标题翻译：过程Seitenfreigebung用于虚拟寻址机制
公开(公告)号：EP1069507B1
公开(公告)日：2007-10-10
申请号：EP00401701.8
申请日：2000-06-15
申请人： BULL S.A.
发明人： Comment, Alain
IPC分类号： G06F12/12
CPC分类号： G06F12/124

2. 发明公开

EP1667028A1 CACHE MEMORY AND CACHE MEMORY CONTROL METHOD 审中-公开
标题翻译： CACHE-SPEICHER UND CACHE-SPEICHER-STEUERVERFAHREN
公开(公告)号：EP1667028A1
公开(公告)日：2006-06-07
申请号：EP04772377.0
申请日：2004-08-23
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： TANAKA, Tetsuya , NAKANISHI, Ryuta , KIYOHARA, Tokuzo , MORISHITA, Hiroyuki , CHIKAMURA, Keishi
IPC分类号： G06F12/12 , G06F12/08
CPC分类号： G06F12/127 , G06F12/124
摘要： A cache memory of the present invention includes: for each cache entry, way 0 to way 3 which hold use flags U indicating whether or not the use flags U have been accessed; and a control unit which: updates, when a cache entry is hit, a use flag U corresponding to the hit cache entry so that the use flag U indicates that the cache entry has been accessed; and reset, in the case where all other use flags in the same set indicates that the cache entries have been accessed herein, the all other use flags so that the use flags indicate that the cache entries have not been accessed; and select a cache entry to be replaced from among the cache entries corresponding to the use flags indicating that the cache entries have not been accessed.
摘要翻译：本发明的高速缓冲存储器包括：对于每个高速缓存条目，方式0到路径3，其保持使用标志U，指示是否已经访问了使用标志U; 以及控制单元，其在高速缓存条目被命中时更新与所述命中高速缓存条目对应的使用标志U，使得所述使用标志U指示所述高速缓存条目已经被访问; 并且在同一集合中的所有其他使用标志指示已经在这里访问了高速缓存条目的情况下，复位所有其他使用标志，使得使用标志指示高速缓存条目未被访问; 并且从与指示高速缓存条目未被访问的使用标志相对应的高速缓存条目中选择要替换的高速缓存条目。

3. 发明授权

EP0593968B1 Cache-based data compression/decompression 失效
标题翻译：具有高速缓存存储器中的数据压缩/解压缩
公开(公告)号：EP0593968B1
公开(公告)日：2000-06-14
申请号：EP93116015.4
申请日：1993-10-04
申请人： HEWLETT-PACKARD COMPANY
发明人： Rosenburg,Charles J. , Berge,Thomas G.
IPC分类号： G06F12/12 , H04N1/417
CPC分类号： G06F12/123 , G06F12/0802 , G06F12/124 , G06F2212/401 , H04N1/417

4. 发明公开

EP0880100A3 Cache-based data compression/decompression 失效
标题翻译：数据压缩/ - 与高速缓存存储器减压
公开(公告)号：EP0880100A3
公开(公告)日：1999-08-25
申请号：EP98113104.8
申请日：1993-10-04
申请人： Hewlett-Packard Company
发明人： Rosenberg, Charles J. , Berge, Thomas G.
IPC分类号： G06F12/12 , H04N1/417
CPC分类号： G06F12/123 , G06F12/0802 , G06F12/124 , G06F2212/401 , H04N1/417
摘要： An apparatus for efficient data compression/decompression comprising: first cache memory means for storing a plurality of data segments in a plurality of memory positions, each position having a position identifier; second cache memory means having a plurality of levels, a first said level including a position identifier for a most recently used data segment, said position identifier identifying wherein said first cache memory means is stored said most recently used data segment and remaining levels including position identifiers that identify storage positions in said first cache memory means wherein are stored for less recently used data segments; means for determining if a received data segment is found in said first cache memory means and if found, transmitting to receiving means said position identifier from said second cache memory means that indicates the position in said first cache memory means that stores said received data segment.

5. 发明公开

EP0788053A2 Resource management method and apparatus for information processing system of multitasking facility 失效
标题翻译：多任务 - 数据管理系统
公开(公告)号：EP0788053A2
公开(公告)日：1997-08-06
申请号：EP97100819.8
申请日：1997-01-20
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Numajiri, Yutaka , Sakai, Hiroshi
IPC分类号： G06F12/02
CPC分类号： G06F12/023 , G06F3/0601 , G06F3/0608 , G06F3/0644 , G06F3/0674 , G06F12/124 , G06F12/127 , G06F2003/0697 , G06F2212/401 , Y10S707/99953 , Y10S707/99957
摘要： The present invention relates to a main memory space reclaiming apparatus used in a virtual memory computer system. In this apparatus, a page-out daemon process (20) periodically scans page frames of a main memory (30) and reclaims main memory pages which have not been accessed recently. An operating system (10) includes a unit for acquiring the amount of free main memory (30), and a unit for controlling a rate at which the page-out daemon process (20) scans the page frames according to the amount of free main memory (30).
摘要翻译：本发明涉及在虚拟存储器计算机系统中使用的主存储空间回收装置。在该装置中，页面输出守护程序（20）周期性地扫描主存储器（30）的页面帧并回收最近未被访问的主存储器页面。操作系统（10）包括用于获取空闲主存储器（30）的量的单元，以及用于根据自由主存储器（30）的数量来控制页面输出守护进程（20）扫描页框的速率的单元记忆（30）。

6. 发明公开

EP0593968A1 Cache-based data compression/decompression 失效
标题翻译： Datenkomprimierung / -dekomprimierung mit Cache-Speichern。
公开(公告)号：EP0593968A1
公开(公告)日：1994-04-27
申请号：EP93116015.4
申请日：1993-10-04
申请人： HEWLETT-PACKARD COMPANY
发明人： Rosenburg,Charles J. , Berge,Thomas G.
IPC分类号： G06F12/12 , H04N1/417
CPC分类号： G06F12/123 , G06F12/0802 , G06F12/124 , G06F2212/401 , H04N1/417
摘要： An apparatus (60) for compressing bilevel data includes a first cache memory (20,66) having a plurality of assigned levels of usage, a first usage level assigned to most recently used data segments and a second level assigned to a plurality of less recently used data segments. A processor (62) determines if a received data segment is found in the cache memory (20,66) and, if not, it assigns the received data segment to the cache memory's first level in place of a previous data segment stored therein. The previous data segment is assigned to a position in the second level in place of a less recently used data segment. The less recently used data segment that is displaced is chosen by a pseudo-random method. A "not-found" indication (38,62) is then transmitted to a receiving station along with the identity of the received data segment. The receiving station (72) contains identical cache structures and updates its caches in response to received code words and data segments. A further version of the invention emplaces data segments into cache memories in accordance with the context in which the data segments are found, the cache memories being assigned in accordance with context derived addresses.
摘要翻译：用于压缩二级数据的装置（60）包括具有多个分配的使用级别的第一高速缓存存储器（20,66），分配给最近使用的数据段的第一使用级别和分配给多个不太近的多个使用的数据段。处理器（62）确定在高速缓冲存储器（20,66）中是否找到接收到的数据段，并且如果不是，则将接收到的数据段分配给高速缓冲存储器的第一级代替存储在其中的先前数据段。先前的数据段被分配给第二级中的位置，代替不太近使用的数据段。通过伪随机方法选择最近使用的被替换的数据段。然后将“未发现”指示（38,62）与所接收的数据段的标识一起发送到接收站。接收站（72）包含相同的高速缓存结构，并响应于接收到的代码字和数据段更新其高速缓存。根据发现数据段的上下文，根据上下文导出的地址分配高速缓存存储器，本发明的另一个版本将数据段发送到高速缓存存储器中。

7. 发明公开

EP0412245A2 Cache memory 失效
标题翻译：缓存斯派克。
公开(公告)号：EP0412245A2
公开(公告)日：1991-02-13
申请号：EP90108527.4
申请日：1990-05-07
申请人： International Business Machines Corporation
发明人： Robinson, John Timothy
IPC分类号： G06F12/12
CPC分类号： G06F12/124 , G06F12/122
摘要： Methods and apparatus are set forth for use with a cache memory resource (that includes a plurality of cache blocks for storing data) and a cache directory (for keeping track of which of said blocks are in use, the number of times each block is referenced and block age), for determining which of said plurality of cache blocks is to be replaced with data to be stored in cache memory on a cache miss. The methods and apparatus cause a reference count, for each cache block, to be maintained in the cache directory; utilize at least one preselected age boundary threshold to determine when to adjust a reference count for a given block on a cache hit; and select a cache block for replacement as a function of reference count value and block age. For example, when 2 preselected age boundary thresholds are utilized, blocks may be considered for replacement only if they have aged past the second boundary and have a reference count below a preselected threshold value. On a cache miss, the block to be replaced can be selected from the set of blocks whose reference counts are below a preselected reference count threshold value thereby allowing for the possibility of non least recently used block replacement choices. Furthermore, according to another embodiment of the invention, to facilitate rapid identification of possible block replacement choices, a chain of blocks is maintained for each reference count below a preselected reference count threshold value.
摘要翻译：阐述了与高速缓存存储器资源（其包括用于存储数据的多个高速缓存块）和高速缓存目录（用于跟踪所使用的块中的哪一个正在使用中的每个块被参考的次数）的方法和装置和块年龄），用于确定在高速缓存未命中将被要存储在高速缓冲存储器中的数据替换为所述多个高速缓存块中的哪一个。所述方法和装置对于每个高速缓存块引起参考计数，以保持在所述缓存目录中; 利用至少一个预选的年龄边界阈值来确定何时调整缓存命中上给定块的引用计数; 并根据引用计数值和块年龄来选择一个用于替换的缓存块。例如，当使用2个预选的年龄边界阈值时，只有当它们已经老化超过第二边界并且具有低于预选阈值的参考计数时，才可以考虑块的替换。在缓存未命中时，可以从其参考计数低于预选参考计数阈值的块集合中选择要替换的块，从而允许非最近最少使用的块替换选择的可能性。此外，根据本发明的另一个实施例，为了便于快速识别可能的块更换选择，为了每个参考计数保持低于预先选择的参考计数阈值的块链。

8. 发明授权

EP4264440B1 DATA SECURITY WHEN TIERING VOLATILE AND NON-VOLATILE BYTE-ADDRESSABLE MEMORY 有权
公开(公告)号：EP4264440B1
公开(公告)日：2024-05-22
申请号：EP21830583.7
申请日：2021-12-02
IPC分类号： G06F12/06 , G06F12/14
CPC分类号： G06F12/1408 , G06F2212/105220130101 , G06F12/0868 , G06F2212/21420130101 , G06F2212/20520130101 , G06F12/124

9. 发明公开

EP1667028A4 CACHE MEMORY AND CACHE MEMORY CONTROL METHOD 审中-公开
标题翻译：高速缓存和缓存存储器控制方法
公开(公告)号：EP1667028A4
公开(公告)日：2008-10-29
申请号：EP04772377
申请日：2004-08-23
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TANAKA TETSUYA , NAKANISHI RYUTA , KIYOHARA TOKUZO , MORISHITA HIROYUKI , CHIKAMURA KEISHI
IPC分类号： G06F12/12 , G06F12/08
CPC分类号： G06F12/127 , G06F12/124
摘要： A cache memory comprises ways (0 to 3) and a control unit. For each cache entry, the ways (0 to 3) store a usage flag U to indicate whether an access is made or not. When a hit occurs, the control unit updates the usage flag U corresponding to the cache entry to the one indicating that an access is made. At this time, if all the other usage flags in the set each indicate that an access is made, the control unit resets all the other usage flags in the set to the ones each indicating that no access is made and, from the cache entries corresponding to the usage flags each indicating that no access is made, selects a cache entry to be replaced.

10. 发明公开

EP1164491A3 Ressource management method and apparatus for information processing system of multitasking facility 失效
标题翻译：资源管理进程和一个多任务的数据处理系统的设置
公开(公告)号：EP1164491A3
公开(公告)日：2002-01-02
申请号：EP01120444.3
申请日：1997-01-20
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Numajiri, Yutaka, K.K. Toshiba, Intellectual , Sakai, Hiroshi, K.K. Toshiba, Intellectual
IPC分类号： G06F12/12 , G06F3/06
CPC分类号： G06F12/023 , G06F3/0601 , G06F3/0608 , G06F3/0644 , G06F3/0674 , G06F12/124 , G06F12/127 , G06F2003/0697 , G06F2212/401 , Y10S707/99953 , Y10S707/99957
摘要： The present application relates to a disk space reclaiming method. When the amount of free area goes lower than a predetermined threshold, a file in the disk volume is selected based on an ordered set of selecting policies. The selected file is compressed and the surplus area created by the compression is reclaimed.

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