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1. 发明申请

US20090037758A1 USE OF T4 TIMESTAMPS TO CALCULATE CLOCK OFFSET AND SKEW 有权
标题翻译：使用T4 TIMESTAMPS计算时钟偏移量和SKEW
公开(公告)号：US20090037758A1
公开(公告)日：2009-02-05
申请号：US12245303
申请日：2008-10-03
申请人： Scott M. Carlson , Michel Henri Hack , Li Zhang
发明人： Scott M. Carlson , Michel Henri Hack , Li Zhang
IPC分类号： G06F1/12
CPC分类号： G06F1/10
摘要： Disclosed are a method and system for calculating clock offset and skew between two clocks in a computer system. The method comprises the steps of sending data packets from a first processing unit in the computer system to a second processing unit in the computer system, and sending the data packets from the second processing unit to the first processing unit. First, second, third and fourth time stamps are provided to indicate, respectively, when the packets leave the first processing unit, arrive at the second processing unit, leave the second processing unit, and arrive at the first processing unit. The method comprises the further steps of defining a set of backward delay points using the fourth time stamps, and calculating a clock offset between clocks on the first and second processing units and clock skews of said clocks using said set of backward delay points.
摘要翻译：公开了一种用于计算计算机系统中两个时钟之间的时钟偏移和偏差的方法和系统。该方法包括以下步骤：将数据分组从计算机系统中的第一处理单元发送到计算机系统中的第二处理单元，并将数据分组从第二处理单元发送到第一处理单元。提供第一，第二，第三和第四时间戳以分别指示分组离开第一处理单元时到达第二处理单元，离开第二处理单元并到达第一处理单元。该方法还包括使用第四时间戳定义一组后向延迟点的步骤，以及使用所述一组后向延迟点来计算第一和第二处理单元上的时钟之间的时钟偏移和所述时钟的时钟偏差。

2. 发明申请

US20070061628A1 System and method for examining remote systems and gathering debug data in real time 有权
标题翻译：用于检查远程系统和实时采集调试数据的系统和方法
公开(公告)号：US20070061628A1
公开(公告)日：2007-03-15
申请号：US11223887
申请日：2005-09-09
申请人： Jonathan Bradbury , Scott Carlson , Trevor Carlson , Donald Crabtree , David Elko , Michel Henri Hack , William Sakal , Denise Sevigny , Ronald Smith , Li Zhang
发明人： Jonathan Bradbury , Scott Carlson , Trevor Carlson , Donald Crabtree , David Elko , Michel Henri Hack , William Sakal , Denise Sevigny , Ronald Smith , Li Zhang
IPC分类号： G06F11/00
CPC分类号： G06F11/3632 , G06F11/3636
摘要： A system, method and computer program product for dynamically debugging a multi-node network comprising an infrastructure including a plurality of devices, each device adapted for communicating messages between nodes which may include information for synchronizing a timing clock provided in each node. The apparatus comprises a plurality of probe links interconnecting each node with a probe device that monitors data included in each message communicated by a node. Each probe device processes data from each message to determine existence of a trigger condition at a node and, in response to detecting a trigger condition, generates a specialized message for receipt by all nodes in the network. Each node responds to the specialized message by halting operation at the node and recording data useful for debugging purposes. In this manner, debug information is collected at each node at the time of a first error detection and collected dynamically at execution time without manual intervention.
摘要翻译：一种用于动态调试包括多个设备的基础设施的多节点网络的系统，方法和计算机程序产品，每个设备适于在节点之间传送消息，其可以包括用于同步每个节点中提供的定时时钟的信息。该装置包括将每个节点与探测装置互连的多个探针链路，该探测装置监视由节点传送的每个消息中包括的数据。每个探测设备处理来自每个消息的数据以确定节点处的触发条件的存在，并且响应于检测到触发条件，生成用于由网络中的所有节点接收的专用消息。每个节点通过停止节点处的操作并记录有用的调试数据来响应专门的消息。以这种方式，在第一次错误检测时在每个节点收集调试信息，并在执行时动态收集而无需手动干预。

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