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21. 发明授权

US5784590A Slave cache having sub-line valid bits updated by a master cache 失效
标题翻译：具有由主缓存更新的子行有效位的从缓存
公开(公告)号：US5784590A
公开(公告)日：1998-07-21
申请号：US618637
申请日：1996-03-19
申请人： Earl T. Cohen , Jay C. Pattin
发明人： Earl T. Cohen , Jay C. Pattin
IPC分类号： G06F12/08
CPC分类号： G06F12/0848 , G06F12/0857 , G06F12/0897 , G06F12/0831
摘要： A cache system has a large master cache and smaller slave caches. The slave caches are coupled to the processor's pipelines and are kept small and simple to increase their speed. The master cache is set-associative and performs many of the complex cache management operations for the slave caches, freeing the slaves of these bandwidth-robbing duties. Only the slave caches store sub-line valid bits with all cache lines; the master cache has only full cache lines valid. During a miss from a slave cache, the slave cache sends its sub-line valid bits to the master cache. The slave's sub-line valid bits are loaded into a request pipeline in the master cache. As requests are fulfilled and finish the pipeline, its address is compared to the addresses of all other pending requests in the master's pipeline. If another pending request matches the slave's index and tag, its sub-line valid bits are updated by setting the corresponding sub-line valid bit for the completing request's sub-line. If another pending request matches the slave's index but not the tag, all of the other request's sub-line valid bits are cleared. Thus subline valid bits of pending requests are updated as each request completes the master's pipeline and writes its sub-line to the slave cache.
摘要翻译：缓存系统具有大的主缓存和较小的从高速缓存。从属高速缓存耦合到处理器的管道，并保持较小且简单以增加其速度。主缓存设置关联，并为奴隶缓存执行许多复杂的高速缓存管理操作，释放这些带宽抢占任务的从站。只有从属缓存存储所有高速缓存行的子行有效位; 主缓存只有完整的高速缓存行有效。在从高速缓存缺失时，从站缓存将其子行有效位发送到主缓存。从站的子行有效位加载到主缓存中的请求流水线中。当满足请求并完成流水线时，将其地址与主控管道中所有其他待处理请求的地址进行比较。如果另一个未决请求与从属索引和标签相匹配，则通过设置完成请求的子行的相应子行有效位来更新其子行有效位。如果另一个挂起的请求与从站的索引匹配，而不是标记，则所有其他请求的子行有效位都将被清除。因此，当每个请求完成主控管道并将其子行写入从缓存时，更新挂起请求的子行有效位。

22. 发明申请

US20140068365A1 FLASH MEMORY READ SCRUB AND CHANNEL TRACKING 有权
标题翻译：闪存存储器读取SCRUB和通道跟踪
公开(公告)号：US20140068365A1
公开(公告)日：2014-03-06
申请号：US13597489
申请日：2012-08-29
申请人： Zhengang Chen , Earl T. Cohen
发明人： Zhengang Chen , Earl T. Cohen
IPC分类号： G06F11/07
CPC分类号： G06F11/106
摘要： An apparatus having a first circuit and a second circuit is disclosed. The first circuit may be configured to (i) read data from a region of a memory circuit during a read scrub of the region and (ii) generate a plurality of statistics based on (a) the data and (b) one or more bit flips performed during an error correction of the data. The memory circuit is generally configured to store the data in a nonvolatile condition. One or more reference voltages may be used to read the data. The second circuit may be configured to (i) update a plurality of parameters of the region based on the statistics and (ii) compute updated values of the reference voltages based on the parameters.
摘要翻译：公开了一种具有第一电路和第二电路的装置。第一电路可以被配置为（i）在区域的读取擦除期间从存储器电路的区域读取数据，以及（ii）基于（a）数据生成多个统计信息，以及（b）一个或多个位在数据的错误校正期间执行翻转。存储器电路通常被配置为将数据存储在非易失性状态中。可以使用一个或多个参考电压来读取数据。第二电路可以被配置为（i）基于统计信息来更新区域的多个参数，以及（ii）基于参数计算参考电压的更新值。

23. 发明申请

US20140068176A1 LOOKUP ENGINE WITH PIPELINED ACCESS, SPECULATIVE ADD AND LOCK-IN-HIT FUNCTION 有权
标题翻译： LOOKUP发动机具有管道接入，调节增加和锁定功能
公开(公告)号：US20140068176A1
公开(公告)日：2014-03-06
申请号：US13600464
申请日：2012-08-31
申请人： Leonid Baryudin , Earl T. Cohen , Kent Wayne Wendorf
发明人： Leonid Baryudin , Earl T. Cohen , Kent Wayne Wendorf
IPC分类号： G06F12/12 , G06F12/00
CPC分类号： G11C15/00 , G06F3/0619 , G06F3/0659 , G06F3/0671
摘要： Described embodiments provide a lookup engine that receives lookup requests including a requested key and a speculative add requestor. Iteratively, for each one of the lookup requests, the lookup engine searches each entry of a lookup table for an entry having a key matching the requested key of the lookup request. If the lookup table does not include an entry having a key matching the requested key, the lookup engine sends a miss indication corresponding to the lookup request to the control processor. If the speculative add requestor is set, the lookup engine speculatively adds the requested key to a free entry in the lookup table. Speculatively added keys are searchable in the lookup table for subsequent lookup requests to maintain coherency of the lookup table without creating duplicate key entries, comparing missed keys with each other or stalling the lookup engine to insert missed keys.
摘要翻译：描述的实施例提供了一种查找引擎，其接收包括所请求的密钥和推测添加请求者的查找请求。迭代地，对于每个查找请求，查找引擎搜索查找表的每个条目，以获得具有与查找请求的请求密钥匹配的密钥的条目。如果查找表不包括具有与所请求的密钥匹配的密钥的条目，则查找引擎向控制处理器发送对应于查找请求的未命中指示。如果设置了推测性添加请求者，则查找引擎推测性地将请求的密钥添加到查找表中的空闲条目。在查找表中可以搜索用于后续查找请求的推测加密密钥，以维护查找表的一致性，而不创建重复密钥条目，将错过的密钥彼此进行比较，或者阻止查找引擎插入错过的密钥。

24. 发明申请

US20120311246A1 System Including a Fine-Grained Memory and a Less-Fine-Grained Memory 有权
标题翻译：包括细粒度内存和细粒度内存的系统
公开(公告)号：US20120311246A1
公开(公告)日：2012-12-06
申请号：US13584755
申请日：2012-08-13
申请人： Thomas M. McWilliams , Earl T. Cohen , James M. Bodwin , Ulrich Bruening
发明人： Thomas M. McWilliams , Earl T. Cohen , James M. Bodwin , Ulrich Bruening
IPC分类号： G06F12/02
CPC分类号： G06F12/0284 , G06F12/0802 , G06F12/0806 , G06F2212/1044 , G06F2212/2022 , G06F2212/2542 , G06F2212/401 , Y02D10/13
摘要： A data processing system includes one or more nodes, each node including a memory sub-system. The sub-system includes a fine-grained, memory, and a less-fine-grained (e.g., page-based) memory. The fine-grained memory optionally serves as a cache and/or as a write buffer for the page-based memory. Software executing on the system uses a node address space which enables access to the page-based memories of all nodes. Each node optionally provides ACID memory properties for at least a portion of the space. In at least a portion of the space, memory elements are mapped to locations in the page-based memory. In various embodiments, some of the elements are compressed, the compressed elements are packed into pages, the pages are written into available locations in the page-based memory, and a map maintains an association between the some of the elements and the locations.
摘要翻译：数据处理系统包括一个或多个节点，每个节点包括存储器子系统。该子系统包括细粒度的存储器和不太细粒度的（例如基于页面的）存储器。细粒度的内存可选地用作基于页面的存储器的缓存和/或写入缓冲器。在系统上执行的软件使用节点地址空间，其能够访问所有节点的基于页面的存储器。每个节点可选地为该空间的至少一部分提供ACID存储器属性。在空间的至少一部分中，存储器元素被映射到基于页的存储器中的位置。在各种实施例中，一些元素被压缩，压缩的元素被打包成页面，页面被写入基于页面的存储器中的可用位置，并且映射维持一些元素和位置之间的关联。

25. 发明申请

US20120259889A1 Scalable Database Management Software on a Cluster of Nodes Using a Shared-Distributed Flash Memory 有权
标题翻译：使用共享分布式闪存的节点群集上的可扩展数据库管理软件
公开(公告)号：US20120259889A1
公开(公告)日：2012-10-11
申请号：US13528064
申请日：2012-06-20
申请人： Darpan Dinker , Andrew David Eckhardt , Darryl Manabu Ouye , Brian Walter O'Krafka , Earl T. Cohen , Thomas M. McWilliams
发明人： Darpan Dinker , Andrew David Eckhardt , Darryl Manabu Ouye , Brian Walter O'Krafka , Earl T. Cohen , Thomas M. McWilliams
IPC分类号： G06F17/30
CPC分类号： G06F12/0842 , G06F12/0866 , G06F17/30575 , G06F2212/2022 , Y02D10/13
摘要： A distributed database system has multiple compute nodes each running an instance of a database management system (DBMS) program that accesses database records in a local buffer cache. Records are persistently stored in distributed flash memory on multiple storage nodes. A Sharing Data Fabric (SDF) is a middleware layer between the DBMS programs and the storage nodes and has API functions called by the DBMS programs when a requested record is not present in the local buffer cache. The SDF fetches the requested record from flash memory and loads a copy into the local buffer cache. The SDF has threads on a home storage node that locate database records using a node map. A global cache directory locks and pins records to local buffer caches for updating by a node's DBMS program. DBMS operations are grouped into transactions that are committed or aborted together as a unit.
摘要翻译：分布式数据库系统具有多个计算节点，每个运行节点都运行数据库管理系统（DBMS）程序的实例，该程序访问本地缓冲区高速缓存中的数据库记录。记录永久存储在多个存储节点上的分布式闪存中。共享数据结构（SDF）是DBMS程序和存储节点之间的中间件层，当本地缓冲区高速缓存中不存在所请求的记录时，具有由DBMS程序调用的API函数。 SDF从闪存中提取所请求的记录，并将副本加载到本地缓冲区高速缓存中。 SDF在家用存储节点上具有使用节点映射定位数据库记录的线程。全局缓存目录锁定和引导记录到本地缓冲区高速缓存，以便由节点的DBMS程序进行更新。 DBMS操作被分组为作为一个单元一起提交或中止的事务。

26. 发明授权

US08229945B2 Scalable database management software on a cluster of nodes using a shared-distributed flash memory 有权
标题翻译：使用共享分布式闪存的节点群集上的可扩展数据库管理软件
公开(公告)号：US08229945B2
公开(公告)日：2012-07-24
申请号：US12276540
申请日：2008-11-24
申请人： Darpan Dinker , Andrew David Eckhardt , Darryl Manabu Ouye , Brian Walter O'Krafka , Earl T. Cohen , Thomas M. McWilliams
发明人： Darpan Dinker , Andrew David Eckhardt , Darryl Manabu Ouye , Brian Walter O'Krafka , Earl T. Cohen , Thomas M. McWilliams
IPC分类号： G06F7/00 , G06F17/30
CPC分类号： G06F12/0842 , G06F12/0866 , G06F17/30575 , G06F2212/2022 , Y02D10/13
摘要： A distributed database system has multiple compute nodes each running an instance of a database management system (DBMS) program that accesses database records in a local buffer cache. Records are persistently stored in distributed flash memory on multiple storage nodes. A Sharing Data Fabric (SDF) is a middleware layer between the DBMS programs and the storage nodes and has API functions called by the DBMS programs when a requested record is not present in the local buffer cache. The SDF fetches the requested record from flash memory and loads a copy into the local buffer cache. The SDF has threads on a home storage node that locate database records using a node map. A global cache directory locks and pins records to local buffer caches for updating by a node's DBMS program. DBMS operations are grouped into transactions that are committed or aborted together as a unit.
摘要翻译：分布式数据库系统具有多个计算节点，每个运行节点都运行数据库管理系统（DBMS）程序的实例，该程序访问本地缓冲区高速缓存中的数据库记录。记录永久存储在多个存储节点上的分布式闪存中。共享数据结构（SDF）是DBMS程序和存储节点之间的中间件层，当本地缓冲区高速缓存中不存在所请求的记录时，具有由DBMS程序调用的API函数。 SDF从闪存中提取所请求的记录，并将副本加载到本地缓冲区高速缓存中。 SDF在家用存储节点上具有使用节点映射定位数据库记录的线程。全局缓存目录锁定和引导记录到本地缓冲区高速缓存，以便由节点的DBMS程序进行更新。 DBMS操作被分组为作为一个单元一起提交或中止的事务。

27. 发明授权

US07599381B2 Scheduling eligible entries using an approximated finish delay identified for an entry based on an associated speed group 有权
标题翻译：使用基于相关联的速度组为入口标识的近似完成延迟来计划合格条目
公开(公告)号：US07599381B2
公开(公告)日：2009-10-06
申请号：US11022220
申请日：2004-12-23
申请人： Doron Shoham , Christopher J. Kappler , Anna Charny , Earl T. Cohen , Robert Olsen
发明人： Doron Shoham , Christopher J. Kappler , Anna Charny , Earl T. Cohen , Robert Olsen
IPC分类号： H04L12/56 , H04L12/28
CPC分类号： H04L47/564 , H04L47/50
摘要： Eligible entries are scheduled using an approximated finish delay identified for an entry based on an associated speed group. One implementation maintains schedule entries, each respectively associated with a start time and a speed group. Each speed group is associated with an approximated finish delay. An approximated earliest finishing entry from the eligible schedule entries is determined that has an earliest approximated finish time, with the approximated finish time of an entry being determined based on the entry's start time and the approximated finish delay of the associated speed group. The scheduled action corresponding to the approximated earliest finishing entry is then typically performed. The action performed may, for example, correspond to the forwarding of one or more packets, an amount of processing associated with a process or thread, or any activity associated with an item.
摘要翻译：使用基于相关联的速度组为入口识别的近似完成延迟来安排合格条目。一个实现维护计划条目，每个进度条目分别与开始时间和速度组相关联。每个速度组与近似的完成延迟相关联。确定具有最早近似完成时间的合格调度条目中的近似最早的整理条目，其中基于条目的开始时间和相关联的速度组的近似完成延迟来确定条目的近似完成时间。然后通常执行与近似最早的完成条目相对应的调度动作。执行的动作可以例如对应于一个或多个分组的转发，与进程或线程相关联的处理量或与项目相关联的任何活动。

28. 发明授权

US07599287B2 Tokens in token buckets maintained among primary and secondary storages 有权
标题翻译：令牌桶中的令牌在主存储和辅助存储之间保持
公开(公告)号：US07599287B2
公开(公告)日：2009-10-06
申请号：US11271247
申请日：2005-11-11
申请人： James Fraser Testa , Eyal Oren , Earl T. Cohen
发明人： James Fraser Testa , Eyal Oren , Earl T. Cohen
IPC分类号： H04L12/56
CPC分类号： H04L47/10 , H04L47/215
摘要： Token buckets are used in a computer or communications system for controlling rates at which corresponding items are processed. The number of tokens in a token bucket identifies the amount of processing that is available for the corresponding item. Instead of storing the value of a token bucket as a single value in a single memory location as traditionally done, the value of a token bucket is stored across multiple storage locations, such as in on-chip storage and in off-chip storage (e.g., in a memory device). An indication (e.g., one or more bits) can also be stored on chip to identify whether or not the off-chip stored value is zero and/or of at least of a certain magnitude such that it may be readily determined whether there are sufficient tokens to process an item without accessing the off-chip storage.
摘要翻译：在计算机或通信系统中使用令牌桶来控制处理相应项目的速率。令牌桶中的令牌数量标识可用于相应项目的处理量。令牌桶的值不像传统上将单个值存储在单个存储单元中而不是将令牌桶的值存储在多个存储位置之间，例如片上存储和片外存储（例如，，在存储设备中）。指示（例如，一个或多个比特）也可以存储在芯片上以识别片外存储的值是否为零和/或至少具有一定幅度，使得可以容易地确定是否有足够的令牌处理项目而不访问片外存储。

29. 发明申请

US20090240664A1 Scalable Database Management Software on a Cluster of Nodes Using a Shared-Distributed Flash Memory 有权
标题翻译：使用共享分布式闪存的节点群集上的可扩展数据库管理软件
公开(公告)号：US20090240664A1
公开(公告)日：2009-09-24
申请号：US12276540
申请日：2008-11-24
申请人： Darpan Dinker , Andrew David Eckhardt , Darryl Manabu Ouye , Brian Walter O'Krafka , Earl T. Cohen , Thomas M. McWilliams
发明人： Darpan Dinker , Andrew David Eckhardt , Darryl Manabu Ouye , Brian Walter O'Krafka , Earl T. Cohen , Thomas M. McWilliams
IPC分类号： G06F7/06 , G06F17/30
CPC分类号： G06F12/0842 , G06F12/0866 , G06F17/30575 , G06F2212/2022 , Y02D10/13
摘要： A distributed database system has multiple compute nodes each running an instance of a database management system (DBMS) program that accesses database records in a local buffer cache. Records are persistently stored in distributed flash memory on multiple storage nodes. A Sharing Data Fabric (SDF) is a middleware layer between the DBMS programs and the storage nodes and has API functions called by the DBMS programs when a requested record is not present in the local buffer cache. The SDF fetches the requested record from flash memory and loads a copy into the local buffer cache. The SDF has threads on a home storage node that locate database records using a node map. A global cache directory locks and pins records to local buffer caches for updating by a node's DBMS program. DBMS operations are grouped into transactions that are committed or aborted together as a unit.
摘要翻译：分布式数据库系统具有多个计算节点，每个运行节点都运行数据库管理系统（DBMS）程序的实例，该程序访问本地缓冲区高速缓存中的数据库记录。记录永久存储在多个存储节点上的分布式闪存中。共享数据结构（SDF）是DBMS程序和存储节点之间的中间件层，当本地缓冲区高速缓存中不存在所请求的记录时，具有由DBMS程序调用的API函数。 SDF从闪存中提取所请求的记录，并将副本加载到本地缓冲区高速缓存中。 SDF在家用存储节点上具有使用节点映射定位数据库记录的线程。全局缓存目录锁定和引导记录到本地缓冲区高速缓存，以便由节点的DBMS程序进行更新。 DBMS操作被分组为作为一个单元一起提交或中止的事务。

30. 发明授权

US07551617B2 Multi-threaded packet processing architecture with global packet memory, packet recirculation, and coprocessor 有权
标题翻译：具有全局分组存储器，分组再循环和协处理器的多线程分组处理架构
公开(公告)号：US07551617B2
公开(公告)日：2009-06-23
申请号：US11054076
申请日：2005-02-08
申请人： Will Eatherton , Earl T. Cohen , John Andrew Fingerhut , Donald E. Steiss , John Williams
发明人： Will Eatherton , Earl T. Cohen , John Andrew Fingerhut , Donald E. Steiss , John Williams
IPC分类号： H04L12/56
CPC分类号： H04L47/56 , H04L45/60 , H04L47/50
摘要： A network processor has numerous novel features including a multi-threaded processor array, a multi-pass processing model, and Global Packet Memory (GPM) with hardware managed packet storage. These unique features allow the network processor to perform high-touch packet processing at high data rates. The packet processor can also be coded using a stack-based high-level programming language, such as C or C++. This allows quicker and higher quality porting of software features into the network processor.Processor performance also does not severely drop off when additional processing features are added. For example, packets can be more intelligently processed by assigning processing elements to different bounded duration arrival processing tasks and variable duration main processing tasks. A recirculation path moves packets between the different arrival and main processing tasks. Other novel hardware features include a hardware architecture that efficiently intermixes co-processor operations with multi-threaded processing operations and improved cache affinity.
摘要翻译：网络处理器具有许多新颖的特征，包括多线程处理器阵列，多遍处理模型和具有硬件管理分组存储的全局分组存储器（GPM）。这些独特的功能允许网络处理器以高数据速率执行高触摸数据包处理。分组处理器也可以使用基于堆栈的高级编程语言（例如C或C ++）进行编码。这样可以更快速地将软件功能移植到网络处理器中。当添加额外的处理功能时，处理器性能也不会严重下降。例如，可以通过将处理元素分配给不同的有界持续时间到达处理任务和可变持续时间主处理任务来更智能地处理分组。再循环路径在不同的到达和主要处理任务之间移动分组。其他新颖的硬件功能包括硬件架构，可以将协处理器操作与多线程处理操作高效地混合，并提高缓存关联度。

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