公开(公告)号：US20140012562A1

公开(公告)日：2014-01-09

申请号：US13566243

申请日：2012-08-03

Applicant: Rong N. Chang ,  Chang-Shing Perng ,  Byung Chul Tak ,  Chunqiang Tang

Inventor： Rong N. Chang ,  Chang-Shing Perng ,  Byung Chul Tak ,  Chunqiang Tang

IPC: G06F9/45

CPC classification number: G06F11/3461 ,  G06F11/3409 ,  G06F2201/815 ,  G06F2201/865

Abstract: A method for evaluating the performance of an application when migrated from a first environment in which the application is currently executing to a second, different environment includes generating a virtual application that mimics the resource consuming behavior of the application, executing the virtual application in the second environment, and evaluating the performance of the virtual application in the second environment.

Abstract translation: 当从应用程序当前执行的第一环境迁移到第二不同环境时，评估应用程序的性能的方法包括：生成模拟应用程序的资源消耗行为的虚拟应用程序，在第二环境中执行虚拟应用程序 环境，并评估虚拟应用程序在第二个环境中的性能。

公开(公告)号：US08490088B2

公开(公告)日：2013-07-16

申请号：US12879594

申请日：2010-09-10

Applicant: Chunqiang Tang

Inventor： Chunqiang Tang

IPC: G06F9/455

CPC classification number: G06F9/4856 ,  G06F2009/4557 ,  G06F2009/45575

Abstract: On demand image streaming (ODS), in one aspect, may perform both copy-on-write and copy-on-read to gradually bring data on remote storage server to a host's local disk. Prefetching may be performed during the time the resources are otherwise idle to bring in data from the remote storage server to the host's local disk. A new image format and the corresponding block device driver for a hypervisor or the like may be also provided. ODS' image format may include a header and a bitmap that indicates whether the data sectors are on local disk or remote storage server, and an image content, for instance, stored in raw format.

Abstract translation: 按需图像流（ODS），在一个方面，可以执行写时复制和读写操作，以便将远程存储服务器上的数据逐渐带到主机的本地磁盘。 可以在资源闲置的时间内执行预取，以将数据从远程存储服务器引入主机的本地磁盘。 还可以提供新的图像格式以及用于管理程序等的相应的块设备驱动程序。 ODS的图像格式可以包括标题和位图，其指示数据扇区是在本地磁盘还是远程存储服务器上，并且图像内容例如以原始格式存储。

公开(公告)号：US08387059B2

公开(公告)日：2013-02-26

申请号：US12166768

申请日：2008-07-02

Applicant: Rong N. Chang ,  Klaus Sonnenleiter ,  Chunqiang Tang ,  Sunjit Tara ,  Chun Zhang

Inventor： Rong N. Chang ,  Klaus Sonnenleiter ,  Chunqiang Tang ,  Sunjit Tara ,  Chun Zhang

IPC: G06F9/45

CPC classification number: G06F9/542 ,  G06F9/5083 ,  G06F11/3409 ,  G06F11/3419 ,  G06F11/3447 ,  G06F11/3452 ,  G06F11/3495 ,  G06F2201/86 ,  G06F2209/5018 ,  G06F2209/5022 ,  G06F2209/508 ,  G06F2209/544 ,  H04L43/0888

Abstract: Throughput of a high-volume throughput-centric computer system is controlled by dynamically adjusting a concurrency level of a plurality of events being processed in a computer system to meet a predetermined target for utilization of one or more resources of a computer system. The predetermined target is less than 100% utilization of said one or more resources. The adjusted concurrency level is validated using one or more queuing models to check that said predetermined target is being met. Parameters are configured for adjusting the concurrency level. The parameters are configured so that said one or more resources are shared with one or more external programs. A statistical algorithm is established that minimizes total number of samples collected. The samples may be used to measure performance used to further dynamically adjust the concurrency level. A dynamic thread sleeping method is designed to handle systems that need only a very small number of threads to saturate bottleneck resources and hence are sensitive to concurrency level changes.

Abstract translation: 通过动态地调整在计算机系统中正在处理的多个事件的并发级别以满足计算机系统的一个或多个资源的使用的预定目标来控制大容量以吞吐量为中心的计算机系统的吞吐量。 所述预定目标小于所述一个或多个资源的100％利用率。 使用一个或多个排队模型验证所调整的并发级别，以检查是否满足所述预定目标。 配置参数以调整并发级别。 参数被配置为使得所述一个或多个资源与一个或多个外部程序共享。 建立统计算法，使收集的样本总数最小化。 样本可用于测量用于进一步动态调整并发级别的性能。 动态线程休眠方法旨在处理只需要非常少量线程的系统，从而使瓶颈资源饱和，因此对并发级更改敏感。

公开(公告)号：US08358652B2

公开(公告)日：2013-01-22

申请号：US12233268

申请日：2008-09-18

Applicant: Chunqiang Tang ,  Rong Nickle Chang ,  Christopher Ward

Inventor： Chunqiang Tang ,  Rong Nickle Chang ,  Christopher Ward

IPC: H04L12/56

CPC classification number: H04L45/16 ,  H04L45/02

Abstract: A method to organize nodes into an overlay network and to disseminate multicast messages within this overlay both through an efficient tree embedded in the overlay and through gossips exchanged between overlay neighbors. Regardless of the size of the system, this invention incurs a constant low overhead on each node.

Abstract translation: 将节点组织到覆盖网络中并通过嵌入在覆盖层中的有效树和通过在覆盖邻居之间交换的闲话来在该覆盖内传播多播消息的方法。 不管系统的尺寸如何，本发明在每个节点上引起恒定的低开销。

公开(公告)号：US20120066677A1

公开(公告)日：2012-03-15

申请号：US12879594

申请日：2010-09-10

Applicant: Chunqiang Tang

Inventor： Chunqiang Tang

IPC: G06F15/16 ,  G06F9/455

CPC classification number: G06F9/4856 ,  G06F2009/4557 ,  G06F2009/45575

Abstract: On demand image streaming (ODS), in one aspect, may perform both copy-on-write and copy-on-read to gradually bring data on remote storage server to a host's local disk. Prefetching may be performed during the time the resources are otherwise idle to bring in data from the remote storage server to the host's local disk. A new image format and the corresponding block device driver for a hypervisor or the like may be also provided. ODS' image format may include a header and a bitmap that indicates whether the data sectors are on local disk or remote storage server, and an image content, for instance, stored in raw format.

Abstract translation: 按需图像流（ODS），在一个方面，可以执行写时复制和读写操作，以便将远程存储服务器上的数据逐渐带到主机的本地磁盘。 可以在资源闲置的时间内执行预取，以将数据从远程存储服务器引入主机的本地磁盘。 还可以提供新的图像格式以及用于管理程序等的相应的块设备驱动程序。 ODS的图像格式可以包括标题和位图，其指示数据扇区是在本地磁盘还是远程存储服务器上，并且图像内容例如以原始格式存储。

公开(公告)号：US07617250B2

公开(公告)日：2009-11-10

申请号：US10666577

申请日：2003-09-22

Applicant: Zhichen Xu ,  Magnus Karlsson ,  Chunqiang Tang ,  Christos Karamanolis

Inventor： Zhichen Xu ,  Magnus Karlsson ,  Chunqiang Tang ,  Christos Karamanolis

IPC: G06F17/30

CPC classification number: G06F17/30067

Abstract: A data model represents semantic information associated with objects stored in a file system. The data model includes a first object identifier, a second object identifier and a relation identifier. The first object identifier identifies a first object stored in the file system. The second object identifier identifies a second object stored in the file system, wherein the second object is related to the first object. The relation identifier identifies a relationship between the first object and the second object.

Abstract translation: 数据模型表示与存储在文件系统中的对象相关联的语义信息。 数据模型包括第一对象标识符，第二对象标识符和关系标识符。 第一个对象标识符标识存储在文件系统中的第一个对象。 第二对象标识符识别存储在文件系统中的第二对象，其中第二对象与第一对象相关。 关系标识符识别第一对象和第二对象之间的关系。

公开(公告)号：US20080059466A1

公开(公告)日：2008-03-06

申请号：US11513988

申请日：2006-08-31

Applicant: Gang Luo ,  Chunqiang Tang ,  Philip Shi-lung Yu

Inventor： Gang Luo ,  Chunqiang Tang ,  Philip Shi-lung Yu

IPC: G06F7/00 ,  G06F17/30 ,  G06F15/18

CPC classification number: G06F17/30598 ,  G06F17/30011 ,  G06F17/30117 ,  G06F17/30312 ,  G06F17/30516 ,  G06F17/30684

Abstract: There are provided a system and method for resource adaptive, real-time new event detection. The method includes capturing, from among documents in a document streaming environment, first-story documents that mention previously unmentioned events. The method further includes dynamically adjusting a thoroughness of the capturing step by controlling a number of keywords and documents considered according to a real-time system load.

Abstract translation: 提供了一种用于资源自适应，实时新事件检测的系统和方法。 该方法包括从文档流传输环境中的文档中捕获提及先前未提及的事件的第一层文件。 该方法还包括通过控制根据实时系统负载考虑的关键词和文档的数量来动态地调整捕获步骤的彻底性。

公开(公告)号：US20050204042A1

公开(公告)日：2005-09-15

申请号：US10797152

申请日：2004-03-11

Applicant: Sujata Banerjee ,  Sung-Ju Lee ,  Zhichen Xu ,  Chunqiang Tang ,  Zhiheng Wang

Inventor： Sujata Banerjee ,  Sung-Ju Lee ,  Zhichen Xu ,  Chunqiang Tang ,  Zhiheng Wang

IPC: G06F15/16 ,  G06F15/173

CPC classification number: H04L12/6418

Abstract: Services are provided via a multicast tree. A request to receive a service is received at a node. Stored information at the node is searched to identify a service path or a service node operable to provide the requested service.

Abstract translation: 服务通过多播树提供。 在节点处接收到接收服务的请求。 搜索节点处的存储信息以识别可用于提供所请求的服务的服务路径或服务节点。

公开(公告)号：US08839243B2

公开(公告)日：2014-09-16

申请号：US13453019

申请日：2012-04-23

Applicant: Salman A. Baset ,  Rafah A. Hosn ,  Ruchi Mahindru ,  Harigovind V. Ramasamy ,  Soumitra Sarkar ,  Chunqiang Tang ,  Norbert G. Vogl ,  Long Wang

Inventor： Salman A. Baset ,  Rafah A. Hosn ,  Ruchi Mahindru ,  Harigovind V. Ramasamy ,  Soumitra Sarkar ,  Chunqiang Tang ,  Norbert G. Vogl ,  Long Wang

IPC: G06F9/455

CPC classification number: G06F9/5083 ,  G06F9/485 ,  G06F9/4856

Abstract: A method, an apparatus and an article of manufacture for remediating overload in an over-committed computing environment. The method includes measuring resource usage of each of multiple virtual machines on each of at least one hypervisor in a computing environment, upon detection of a resource overload on one of the at least one hypervisor, determining at least one operation that is to be taken for at least one of the multiple virtual machines on the hypervisor to remediate resource overload while increasing values of running virtual machines, and sending a command to the hypervisor to issue the at least one operation.

Abstract translation: 一种用于在过度承诺的计算环境中修复过载的方法，装置和制品。 该方法包括：在检测到所述至少一个虚拟机管理程序中的一个虚拟机管理程序上的资源超负荷时，在计算环境中测量至少一个虚拟机管理程序的每一个上的多个虚拟机中的每个虚拟机的资源使用情况，确定将要采用的至少一个操作 虚拟机管理程序中的多个虚拟机中的至少一个，用于在增加正在运行的虚拟机的值的同时修复资源过载，以及向管理程序发送命令以发出至少一个操作。

公开(公告)号：US20140040889A1

公开(公告)日：2014-02-06

申请号：US13566099

申请日：2012-08-03

Applicant: Salman A. Baset ,  Hai Huang ,  Kyung Hwa Kim ,  Chunqiang Tang

Inventor： Salman A. Baset ,  Hai Huang ,  Kyung Hwa Kim ,  Chunqiang Tang

IPC: G06F9/455

CPC classification number: G06F9/45533 ,  G06F9/455 ,  G06F9/45558 ,  G06F2009/4557

Abstract: Techniques for facilitating customer-initiated virtual machine (VM) migration and swapping. A method includes obtaining documentation of at least one performance parameter of two or more virtual machines running on two or more physical machines, obtaining a request for a virtual machine exchange from a user of a first virtual machine, wherein the request comprises a preference for at least one desired performance parameter in at least one additional virtual machine, matching the request from the user of the first virtual machine with at least one additional virtual machine that includes the at least one desired performance parameter without assistance from a cloud provider, and exchanging the first virtual machine with a virtual machine from the at least one additional virtual machine that includes the at least one desired performance parameter.

Abstract translation: 促进客户启动的虚拟机（VM）迁移和交换的技术。 一种方法包括获得在两个或多个物理机器上运行的两个或多个虚拟机的至少一个性能参数的文档，从第一虚拟机的用户获得对虚拟机交换的请求，其中所述请求包括： 在至少一个附加虚拟机中至少一个期望的性能参数，其将来自第一虚拟机的用户的请求与至少一个额外的虚拟机匹配，所述至少一个附加虚拟机包括所述至少一个期望的性能参数，而不需要来自云提供商的协助， 具有来自所述至少一个附加虚拟机的虚拟机的第一虚拟机，其包括所述至少一个期望的性能参数。