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1. 发明授权

US06338159B1 System and method for providing trace information 有权
标题翻译：提供跟踪信息的系统和方法
公开(公告)号：US06338159B1
公开(公告)日：2002-01-08
申请号：US09343424
申请日：1999-06-30
申请人： William Preston Alexander, III , Robert Francis Berry , Riaz Y. Hussain , Chester Charles John, Jr. , Frank Eliot Levine , Robert John Urquhart
发明人： William Preston Alexander, III , Robert Francis Berry , Riaz Y. Hussain , Chester Charles John, Jr. , Frank Eliot Levine , Robert John Urquhart
IPC分类号： G06F944
CPC分类号： G06F11/348 , G06F11/3466 , Y10S707/99953 , Y10S707/99957
摘要： The present invention is a system, method, and computer readable medium for representing program event trace information in a way which is very compact and efficient, and yet supports a wide variety of queries regarding system performance. The tracing and reduction of the present invention may be dynamic, in which case information is obtained and added to the trace representation in real-time. Alternately, the tracing and reduction may be static, in which case a trace text file or binary file is obtained from a trace buffer, and the reduction takes place using the trace file as input. The trace information, whether obtained statically or dynamically, is represented as a tree of events. The present invention may be used to present many types of trace information in a compact manner which supports performance queries. For example, the tree structure of the present invention may reflect the call stacks observed during a program's execution, and statistics regarding the memory allocated/deallocated in the various routines and call stacks may be stored at each node of the tree. The tree structure may be used to store performance information regarding Java bytecodes executed, memory allocated, or other types of performance information. The trace information is presented in a manner which is compact and efficient, and may be used to quickly and easily answer a variety of performance queries. Further, a system may be traced for long periods of time without losing useful performance information due to a limited buffer space.
摘要翻译：本发明是用于以非常紧凑和有效的方式表示节目事件跟踪信息的系统，方法和计算机可读介质，并且还支持关于系统性能的各种查询。本发明的追踪和缩减可以是动态的，在这种情况下，实时获得信息并添加到跟踪表示中。或者，跟踪和缩减可以是静态的，在这种情况下，从跟踪缓冲区获取跟踪文本文件或二进制文件，并且使用跟踪文件作为输入进行缩小。跟踪信息（无论是静态获取还是动态获取）都表示为事件树。本发明可以用于呈现支持性能查询的紧凑方式的许多类型的跟踪信息。例如，本发明的树结构可以反映在程序执行期间观察到的调用堆栈，并且关于在各种例程和调用堆栈中分配/释放的存储器的统计信息可以存储在树的每个节点处。树结构可以用于存储关于执行的Java字节码，分配的存储器或其他类型的性能信息的性能信息。跟踪信息以紧凑和高效的方式呈现，并且可以用于快速和容易地回答各种性能查询。此外，系统可以被追踪长时间，而不会由于有限的缓冲区空间而丢失有用的性能信息。

2. 发明授权

US06553564B1 Process and system for merging trace data for primarily interpreted methods 失效
标题翻译：用于主要解释方法合并跟踪数据的过程和系统
公开(公告)号：US06553564B1
公开(公告)日：2003-04-22
申请号：US09343439
申请日：1999-06-30
申请人： William Preston Alexander, III , Robert Francis Berry , Frank Eliot Levine , Chester Charles John, Jr. , Robert John Urquhart
发明人： William Preston Alexander, III , Robert Francis Berry , Frank Eliot Levine , Chester Charles John, Jr. , Robert John Urquhart
IPC分类号： G06F944
CPC分类号： G06F11/3409 , G06F11/3419 , G06F11/3466 , G06F11/3476 , G06F2201/86 , G06F2201/865
摘要： A process and system for profiling code executing on a data processing system is provided. Event-based trace data is recorded in response to selected events, and the event-based trace data includes an indication of which code is being interrupted. The trace data may be processed to identify a thread or method that was executing during the event. A periodically occurring event is also detected, and a stack associated with the profiled code is identified in response to detection of the periodically occurring event, such as a timer interrupt. The stack is examined to identify each routine that is currently executing during the periodically occurring event.
摘要翻译：提供了用于在数据处理系统上执行代码分析的过程和系统。响应于所选择的事件记录基于事件的跟踪数据，并且基于事件的跟踪数据包括正在中断哪个代码的指示。可以处理跟踪数据以识别在事件期间正在执行的线程或方法。还检测到周期性发生的事件，并且响应于诸如定时器中断的周期性发生的事件的检测来识别与分析代码相关联的堆栈。检查堆栈以识别在周期性发生的事件期间当前正在执行的每个例程。

3. 发明授权

US06513155B1 Method and system for merging event-based data and sampled data into postprocessed trace output 失效
标题翻译：将基于事件的数据和采样数据合并到后处理跟踪输出中的方法和系统
公开(公告)号：US06513155B1
公开(公告)日：2003-01-28
申请号：US09343438
申请日：1999-06-30
申请人： William Preston Alexander, III , Robert Francis Berry , Frank Eliot Levine , Robert John Urquhart
发明人： William Preston Alexander, III , Robert Francis Berry , Frank Eliot Levine , Robert John Urquhart
IPC分类号： G06F1730
CPC分类号： G06F11/3409 , G06F11/3419 , G06F11/3466 , G06F11/3476 , G06F2201/86 , G06F2201/865
摘要： A process and system for profiling code executing on a data processing system is provided. Event-based trace data is recorded in response to selected events, and the event-based trace data includes an indication which code is being interrupted. The trace data may be processed to identify a thread or method that was executing during the event. A periodically occurring event is also detected, and a call stack associated with the profiled code is identified in response to detection of the periodically occurring event, such as a timer interrupt. The call stack is examined to identify each routine that is currently executing during the periodically occurring event, and the trace data is recorded with the call stack information. The trace data from the recorded events and the trace data from the call stacks are processed to generate a tree structure in which the nodes indicate the call structure of the routine information from both the trace events and the call stacks.
摘要翻译：提供了用于在数据处理系统上执行代码分析的过程和系统。响应于所选择的事件记录基于事件的跟踪数据，并且基于事件的跟踪数据包括哪个代码被中断的指示。可以处理跟踪数据以识别在事件期间正在执行的线程或方法。还检测到周期性发生的事件，并且响应于诸如定时器中断的周期性发生的事件的检测来识别与分析代码相关联的调用堆栈。检查呼叫堆栈以识别在周期性发生的事件期间当前正在执行的每个例程，并且利用呼叫堆栈信息记录跟踪数据。来自记录的事件的跟踪数据和来自调用堆栈的跟踪数据被处理以生成树结构，其中节点从跟踪事件和调用堆栈指示例程信息的调用结构。

4. 发明授权

US06332117B1 General event stamping scheme 有权
标题翻译：一般事件冲压计划
公开(公告)号：US06332117B1
公开(公告)日：2001-12-18
申请号：US09177035
申请日：1998-10-22
申请人： Robert Francis Berry , Riaz Y. Hussain , Chester Charles John, Jr. , Frank Eliot Levine , Robert John Urquhart
发明人： Robert Francis Berry , Riaz Y. Hussain , Chester Charles John, Jr. , Frank Eliot Levine , Robert John Urquhart
IPC分类号： G06F1500
CPC分类号： G06F11/3466 , G06F11/3409 , G06F2201/835 , G06F2201/86 , G06F2201/88 , G06F2201/885
摘要： During the recording of events occurring within the operation of a data processing system, a user-selected metric of interest is recorded along with the trace data for each recorded event. The metric of interest is a monotonically increasing variable that provides a non-time relationship between the recorded events. This relationship may be time or non-time based.
摘要翻译：在记录在数据处理系统的操作期间发生的事件期间，记录用户选择的感兴趣度量以及每个记录事件的跟踪数据。感兴趣的度量是单调递增的变量，其在记录的事件之间提供非时间关系。这种关系可能是时间或非时间的。

5. 发明授权

US08266595B2 Removal of asynchronous events in complex application performance analysis 失效
标题翻译：在复杂的应用程序性能分析中删除异步事件
公开(公告)号：US08266595B2
公开(公告)日：2012-09-11
申请号：US10777909
申请日：2004-02-12
申请人： William Preston Alexander, III , Robert Tod Dimpsey , Frank Eliot Levine , Robert John Urquhart
发明人： William Preston Alexander, III , Robert Tod Dimpsey , Frank Eliot Levine , Robert John Urquhart
IPC分类号： G06F9/44
CPC分类号： G06F8/443
摘要： A method and apparatus for identifying a minimum call tree data structure from a plurality of call tree data structures are provided. With the apparatus and method, call tree data structures are generated for two or more executions of a build of a computer program. The apparatus and method perform a “tree-minimization” operation in which the two or more call trees generated during runs of the computer program are walked and only those nodes that are present in each of the tree data structures are maintained in a minimized tree data structure. In addition, the minimum values for these common nodes are maintained in the minimized tree data structure. In this way, asynchronous events are removed from the minimum tree data structure and analysis may focus on those areas of the computer program that are consistent between runs of the computer program.
摘要翻译：提供了一种用于从多个呼叫树数据结构中识别最小呼叫树数据结构的方法和装置。利用该装置和方法，生成用于构建计算机程序的两个或多个执行的调用树数据结构。该装置和方法执行“树最小化”操作，其中在计算机程序运行期间生成的两个或更多个调用树被移动，并且仅存在于每个树数据结构中的那些节点保持在最小化的树数据中结构体。此外，这些公共节点的最小值保持在最小化的树数据结构中。以这种方式，从最小树数据结构中去除异步事件，并且分析可以集中在计算机程序的运行之间一致的计算机程序的那些区域。

6. 发明授权

US08479050B2 Identifying access states for variables 失效
标题翻译：识别变量的访问状态
公开(公告)号：US08479050B2
公开(公告)日：2013-07-02
申请号：US13004169
申请日：2011-01-11
申请人： William Preston Alexander, III , Frank Eliot Levine , Robert John Urquhart
发明人： William Preston Alexander, III , Frank Eliot Levine , Robert John Urquhart
IPC分类号： G06F11/00
CPC分类号： G06F11/263 , G06F11/3664
摘要： A method, apparatus, and computer instructions in a processor for selectively performing operations on data. An operation to be performed on data is identified to form an identified operation. A determination is made as to whether metadata identifying a state of the data is associated with the data. A determination is made as to whether the identified operation can be performed on the data based on the state of the data, in response to the metadata being associated with the data. The operation is performed on the data if the state of the data allows for the operation to be performed. The processor selectively performs the operations based on the state of the data.
摘要翻译：处理器中的方法，装置和计算机指令，用于选择性地对数据执行操作。识别要对数据执行的操作以形成识别的操作。确定确定数据的状态的元数据是否与数据相关联。响应于与数据相关联的元数据，确定是否可以基于数据的状态对数据执行所识别的操作。如果数据的状态允许执行操作，则对数据执行操作。处理器基于数据的状态选择性地执行操作。

7. 发明授权

US07895473B2 Method and apparatus for identifying access states for variables 有权
标题翻译：用于识别变量的访问状态的方法和装置
公开(公告)号：US07895473B2
公开(公告)日：2011-02-22
申请号：US10835482
申请日：2004-04-29
申请人： William Preston Alexander, III , Frank Eliot Levine , Robert John Urquhart
发明人： William Preston Alexander, III , Frank Eliot Levine , Robert John Urquhart
IPC分类号： G06F11/00
CPC分类号： G06F11/263 , G06F11/3664
摘要： A method, apparatus, and computer instructions in a processor for selectively performing operations on data. An operation to be performed on data is identified to form an identified operation. A determination is made as to whether metadata identifying a state of the data is associated with the data. A determination is made as to whether the identified operation can be performed on the data based on the state of the data, in response to the metadata being associated with the data. The operation is performed on the data if the state of the data allows for the operation to be performed. The processor selectively performs the operations based on the state of the data.
摘要翻译：处理器中的方法，装置和计算机指令，用于选择性地对数据执行操作。识别要对数据执行的操作以形成识别的操作。确定确定数据的状态的元数据是否与数据相关联。响应于与数据相关联的元数据，确定是否可以基于数据的状态对数据执行所识别的操作。如果数据的状态允许执行操作，则对数据执行操作。处理器基于数据的状态选择性地执行操作。

8. 发明授权

US07647457B2 Method and apparatus for hardware awareness of data types 失效
标题翻译：数据类型的硬件意识的方法和装置
公开(公告)号：US07647457B2
公开(公告)日：2010-01-12
申请号：US12109103
申请日：2008-04-24
申请人： William Preston Alexander, III , Robert Tod Dimpsey , Frank Eliot Levine , Robert John Urquhart
发明人： William Preston Alexander, III , Robert Tod Dimpsey , Frank Eliot Levine , Robert John Urquhart
IPC分类号： G06F12/00
CPC分类号： G06F8/437
摘要： A method, apparatus, and computer instructions in a processor for associating a data type with a memory location. The type is associated with a location by means of metadata that is generated and manipulated by hardware instructions that are typically generated by a compiler as it generates the other instructions that comprise the machine code version of a program. A determination is made as to whether a data value about to be stored is of the required data type for that location. The hardware indicates an error condition if the types do not match.
摘要翻译：一种用于将数据类型与存储器位置相关联的处理器中的方法，装置和计算机指令。该类型通过由编译器生成并由编译器生成包括程序的机器码版本的其他指令的硬件指令生成和操纵的元数据与一个位置相关联。确定要存储的数据值是否是该位置所需的数据类型。如果类型不匹配，则硬件指示错误条件。

9. 发明授权

US07640539B2 Instruction profiling using multiple metrics 失效
标题翻译：使用多个指标进行指令分析
公开(公告)号：US07640539B2
公开(公告)日：2009-12-29
申请号：US11104257
申请日：2005-04-12
申请人： William Preston Alexander, III , Scott Thomas Jones , Frank Eliot Levine , Robert John Urquhart
发明人： William Preston Alexander, III , Scott Thomas Jones , Frank Eliot Levine , Robert John Urquhart
IPC分类号： G06F9/44 , G06F11/00
CPC分类号： G06F11/3616
摘要： A system and method for collecting a plurality of metrics during a single run of a computer program. The mechanism of the present invention initializes a plurality of counters to count events associated with metrics of interest. The mechanism of the present invention then counts the occurrence of events associated with metrics of interest during a single execution of a computer program. Responsive to a determination that a counter in a plurality of counters has generated an interrupt, the interrupt is rerouted to an interrupt handler, wherein the interrupt handler generates trace records comprising trace information corresponding to the interrupt. The mechanism of the present invention then generates profiles for the trace records, wherein the profiles differentiate the trace records based on the metric type associated with each trace record.
摘要翻译：一种用于在计算机程序的单次运行期间收集多个度量的系统和方法。本发明的机制初始化多个计数器以对与感兴趣度量相关联的事件进行计数。然后，本发明的机制在计算机程序的单次执行期间对与感兴趣的度量相关联的事件的发生进行计数。响应于确定多个计数器中的计数器已经产生中断，中断被重新路由到中断处理程序，其中中断处理程序产生包括对应于该中断的跟踪信息的跟踪记录。然后，本发明的机制生成跟踪记录的简档，其中简档基于与每个跟踪记录相关联的度量类型区分跟踪记录。

10. 发明授权

US07328374B2 Method and apparatus for implementing assertions in hardware 有权
标题翻译：用于在硬件中实现断言的方法和装置
公开(公告)号：US07328374B2
公开(公告)日：2008-02-05
申请号：US10835485
申请日：2004-04-29
申请人： William Preston Alexander, III , Robert Tod Dimpsey , Frank Eliot Levine , Robert John Urquhart
发明人： William Preston Alexander, III , Robert Tod Dimpsey , Frank Eliot Levine , Robert John Urquhart
IPC分类号： G06F11/00
CPC分类号： G06F11/3612
摘要： A method, apparatus, and computer instructions in a processor for checking assertions. A determination by the processor is made as to whether metadata for an assertion is associated with the memory location, in response to detecting a change in data in a memory location. The data to the assertion is compared by the processor, in response to the metadata being associated with the memory location. An error is generated by the processor if the assertion is invalid, with respect to the data. The processor checks the assertions for validity.
摘要翻译：一种用于检查断言的处理器中的方法，装置和计算机指令。响应于检测到存储器位置中的数据的改变，由处理器确定用于断言的元数据是否与存储器位置相关联。响应于与存储器位置相关联的元数据，由处理器比较到断言的数据。如果关于数据的断言无效，处理器会产生错误。处理器检查断言的有效性。

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