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1. 发明授权

US10157108B2 Multi-way, zero-copy, passive transaction log collection in distributed transaction systems 有权
公开(公告)号：US10157108B2
公开(公告)日：2018-12-18
申请号：US14287674
申请日：2014-05-27
申请人： International Business Machines Corporation
发明人： Xavier R. Guerin , Shicong Meng
IPC分类号： G06F11/14 , G06F15/173 , H04L29/08
摘要： In various embodiments a distributed computing node in a plurality of distributed computing nodes logs transactions in a distributed processing system. In one embodiment, a set of information associated with at least one transaction is recorded in a transaction log. At least a portion of memory in at least one information processing system involved in the transaction is accessed. The portion of memory is directly accessed without involving a processor of the at least one information processing system. The set of information from the transaction log is written to the portion of memory. The set of information is directly written to the portion of memory without involving a processor of the at least one information processing system.

2. 发明申请

US20180329860A1 REMOTE DIRECT MEMORY ACCESS (RDMA) HIGH PERFORMANCE PRODUCER-CONSUMER MESSAGE PROCESSING 审中-公开
公开(公告)号：US20180329860A1
公开(公告)日：2018-11-15
申请号：US16027329
申请日：2018-07-04
申请人： International Business Machines Corporation
发明人： Yuqing Gao , Xavier R. Guerin , Xiaoqiao Meng , Tiia Salo
IPC分类号： G06F15/167 , G06F15/173 , H04L12/58 , H04L29/08
CPC分类号： G06F15/167 , G06F15/17331 , H04L51/04 , H04L67/02 , H04L67/1097
摘要： A method, system and computer program product for remote direct memory access (RDMA) optimized producer-consumer message processing in a messaging hub is provided. The method includes initializing a shared memory region in memory of a host server hosting operation of a messaging hub. The initialization provides for a control portion and one or more data portions, the control portion storing an index to an available one of the data portions. The method also includes transmitting to a message producer an address of the shared memory region and receiving a message in one of the data portions of the shared memory region from the message producer by way of an RDMA write operation on a network interface of the host server. Finally, the method includes retrieving the message from the one of the data portions and processing the message in the messaging hub in response to the receipt of the message.

3. 发明授权

US10129332B2 Load balancing of distributed services 有权
公开(公告)号：US10129332B2
公开(公告)日：2018-11-13
申请号：US15856474
申请日：2017-12-28
申请人： International Business Machines Corporation
发明人： Xavier R. Guerin
IPC分类号： H04L29/08 , H04L12/26
摘要： Various embodiments load balance service requests across one or more servers. In one embodiment, a service requestor directly accesses a shared metrics array stored in at least one server of a plurality of servers in a service cluster. Each of these servers includes one or more services. The shared metrics array is accessible by each of the plurality of servers, and includes a set of metrics for each of the plurality of servers. A determination is made based on the set of metrics associated with at least one server in the plurality of servers if a service request is to be sent to the at least one server. The service request is sent to the at least one server based on determining that the service request is to be sent to the at least one sever.

4. 发明授权

US10044797B2 Load balancing of distributed services 有权
公开(公告)号：US10044797B2
公开(公告)日：2018-08-07
申请号：US15684209
申请日：2017-08-23
申请人： International Business Machines Corporation
发明人： Xavier R. Guerin
IPC分类号： H04L29/08 , H04L12/26
摘要： Various embodiments load balance service requests across one or more servers. In one embodiment, a service requestor directly accesses a shared metrics array stored in at least one server of a plurality of servers in a service cluster. Each of these servers includes one or more services. The shared metrics array is accessible by each of the plurality of servers, and includes a set of metrics for each of the plurality of servers. A determination is made based on the set of metrics associated with at least one server in the plurality of servers if a service request is to be sent to the at least one server. The service request is sent to the at least one server based on determining that the service request is to be sent to the at least one sever.

5. 发明申请

US20160179669A1 Method, Apparatus And Computer Programs Providing Cluster-Wide Page Management 有权
标题翻译：提供集群范围页面管理的方法，设备和计算机程序
公开(公告)号：US20160179669A1
公开(公告)日：2016-06-23
申请号：US15057259
申请日：2016-03-01
申请人： International Business Machines Corporation
发明人： Parijat Dube , Xavier R. Guerin , Seetharami R. Seelam
IPC分类号： G06F12/08 , G06F9/455
CPC分类号： G06F12/084 , G06F9/45558 , G06F12/08 , G06F12/0864 , G06F17/30 , G06F2009/45583 , G06F2212/152 , G06F2212/163 , G06F2212/62
摘要： A data processing system includes a plurality of virtual machines each having associated memory pages; a shared memory page cache that is accessible by each of the plurality of virtual machines; and a global hash map that is accessible by each of the plurality of virtual machines. The data processing system is configured such that, for a particular memory page stored in the shared memory page cache that is associated with two or more of the plurality of virtual machines, there is a single key stored in the global hash map that identifies at least a storage location in the shared memory page cache of the particular memory page. The system can be embodied at least partially in a cloud computing system.
摘要翻译：数据处理系统包括多个虚拟机，每个虚拟机具有关联的存储器页面; 可由所述多个虚拟机中的每一个访问的共享存储器页面缓存; 以及可由所述多个虚拟机中的每一个访问的全局散列图。数据处理系统被配置为使得对于存储在与多个虚拟机中的两个或更多个虚拟机相关联的共享存储器页面高速缓存中的特定存储器页面，存在存储在全局散列图中的单个密钥，其至少标识特定存储器页面的共享存储器页面缓存中的存储位置。该系统可以至少部分地体现在云计算系统中。

6. 发明申请

US20150067085A1 AUTOMATIC PINNING AND UNPINNING OF VIRTUAL PAGES FOR REMOTE DIRECT MEMORY ACCESS 有权
标题翻译：自动密码和不间断的虚拟页面进行远程内存访问
公开(公告)号：US20150067085A1
公开(公告)日：2015-03-05
申请号：US14013094
申请日：2013-08-29
申请人： International Business Machines Corporation
发明人： Xavier R. Guerin , Xiaoqiao Meng , David P. Olshefski , John M. Tracey
IPC分类号： G06F15/173
CPC分类号： G06F15/17331 , G06F12/10 , G06F12/1081 , G06F12/126
摘要： In one exemplary embodiment, a computer-implemented method includes receiving, at a remote direct memory access (RDMA) device, a plurality of RDMA requests referencing a plurality of virtual pages. Data transfers are scheduled for the plurality of virtual pages, wherein the scheduling occurs at the RDMA device. The number of the virtual pages that are currently pinned is limited for the RDMA requests based on a predetermined pinned page limit.
摘要翻译：在一个示例性实施例中，计算机实现的方法包括在远程直接存储器访问（RDMA）设备处接收参考多个虚拟页面的多个RDMA请求。为多个虚拟页面调度数据传输，其中调度发生在RDMA设备处。根据预定的固定页面限制，当前固定的虚拟页面的数量受限于RDMA请求。

7. 发明授权

US10019408B2 Remote direct memory access (RDMA) high performance producer-consumer message processing 有权
公开(公告)号：US10019408B2
公开(公告)日：2018-07-10
申请号：US15265847
申请日：2016-09-15
申请人： International Business Machines Corporation
发明人： Yuqing Gao , Xavier R. Guerin , Xiaoqiao Meng , Tiia Salo
IPC分类号： G06F15/167 , H04L12/58 , H04L29/08 , G06F15/173
CPC分类号： G06F15/167 , G06F15/17331 , H04L51/04 , H04L67/02 , H04L67/1097
摘要： A method, system and computer program product for remote direct memory access (RDMA) optimized producer-consumer message processing in a messaging hub is provided. The method includes initializing a shared memory region in memory of a host server hosting operation of a messaging hub. The initialization provides for a control portion and one or more data portions, the control portion storing an index to an available one of the data portions. The method also includes transmitting to a message producer an address of the shared memory region and receiving a message in one of the data portions of the shared memory region from the message producer by way of an RDMA write operation on a network interface of the host server. Finally, the method includes retrieving the message from the one of the data portions and processing the message in the messaging hub in response to the receipt of the message.

8. 发明授权

US09495325B2 Remote direct memory access (RDMA) high performance producer-consumer message processing 有权
标题翻译：远程直接存储器访问（RDMA）高性能生产者 - 消费者消息处理
公开(公告)号：US09495325B2
公开(公告)日：2016-11-15
申请号：US14144537
申请日：2013-12-30
申请人： International Business Machines Corporation
发明人： Yuqing Gao , Xavier R. Guerin , Xiaoqiao Meng , Tiia Salo
IPC分类号： G06F15/167 , H04L12/58 , H04L29/08
CPC分类号： G06F15/167 , G06F15/17331 , H04L51/04 , H04L67/02 , H04L67/1097
摘要： A method, system and computer program product for remote direct memory access (RDMA) optimized producer-consumer message processing in a messaging hub is provided. The method includes initializing a shared memory region in memory of a host server hosting operation of a messaging hub. The initialization provides for a control portion and one or more data portions, the control portion storing an index to an available one of the data portions. The method also includes transmitting to a message producer an address of the shared memory region and receiving a message in one of the data portions of the shared memory region from the message producer by way of an RDMA write operation on a network interface of the host server. Finally, the method includes retrieving the message from the one of the data portions and processing the message in the messaging hub in response to the receipt of the message.
摘要翻译：提供了一种用于在消息中心中进行远程直接存储器访问（RDMA）优化的生产者 - 消费者消息处理的方法，系统和计算机程序产品。该方法包括初始化托管消息中心的操作的主机服务器的存储器中的共享存储器区域。初始化提供控制部分和一个或多个数据部分，控制部分存储对可用数据部分的索引。该方法还包括向消息生成器发送共享存储器区域的地址，并且通过RDMA写入操作在主机服务器的网络接口上从消息生成器接收在共享存储器区域的数据部分之一中的消息。最后，该方法包括从数据部分之一检索消息，并响应消息的接收来处理消息中心中的消息。

9. 发明授权

US09378179B2 RDMA-optimized high-performance distributed cache 有权
公开(公告)号：US09378179B2
公开(公告)日：2016-06-28
申请号：US13683319
申请日：2012-11-21
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Xavier R. Guerin , Tiia J. Salo
IPC分类号： H04L9/08 , H04L29/08 , G06F15/173 , G06F17/30
CPC分类号： H04L67/2842 , G06F15/17331 , G06F17/3033 , H04L9/08 , H04L67/1097 , H04L67/42 , H04L69/324
摘要： For remote direct memory access (RDMA) by a client to a data record stored in a cache on a server, a hash map is received by a client from a server. The hash map includes one or more entries associated with a key for the data record stored in the cache on the server that stores a server-side remote pointer referencing the data record stored in the cache on the server. The client, using the key, looks up the server-side remote pointer for the data record from the hash map, and then performs one or more RDMA operations using the server-side remote pointer that allow the client to directly access the data record stored in the cache on the server.

10. 发明授权

US09335830B2 Keyboard with macro keys made up of positionally adjustable micro keys 有权
标题翻译：带有微距键的键盘由位置可调微键组成
公开(公告)号：US09335830B2
公开(公告)日：2016-05-10
申请号：US13927222
申请日：2013-06-26
申请人： International Business Machines Corporation
发明人： Xavier R. Guerin
IPC分类号： G06F3/02 , H01H13/705 , G06F3/023 , H01H3/02
CPC分类号： G06F3/0216 , G06F3/0202 , G06F3/0238 , H01H13/705 , H01H2003/0266 , H01H2217/036 , H01H2221/04 , H01H2223/0345
摘要： An adjustable keyboard where a macro key is (or can be) made up of multiple, proximate micro keys by adjusting a vertical, at-rest position of the micro keys individually. More specifically, the micro keys forming the macro key are set in a high position, while micro keys surrounding the micro keys forming the macro key will generally be set in the low position. In this way, traditional data entry keyboard keys (that is, macro keys) can be built up in an arbitrary fashion, according to the desires and needs of the user, from a larger matrix of micro keys.
摘要翻译：通过单独调节微型键的垂直，静止位置，可以通过多个紧邻的微型键（或可以）构成宏键的可调键盘。更具体地，形成宏键的微型键被设置在高位置，而围绕形成宏键的微型键的微键通常将被设置在低位置。以这种方式，可以根据用户的期望和需要，从更大的微键矩阵中以任意方式构建传统的数据输入键盘键（即宏键）。

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