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1. 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。

2. 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。

3. 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。

4. 发明授权

US6118940A Method and apparatus for benchmarking byte code sequences 失效
标题翻译：用于基准字节码序列的方法和装置
公开(公告)号：US6118940A
公开(公告)日：2000-09-12
申请号：US978513
申请日：1997-11-25
申请人： William Preston Alexander, III , Robert Francis Berry , Riaz Hussain , Paul Jerome Kilpatrick , Robert John Urquhart
发明人： William Preston Alexander, III , Robert Francis Berry , Riaz Hussain , Paul Jerome Kilpatrick , Robert John Urquhart
IPC分类号： G06F11/34 , G06F9/45
CPC分类号： G06F11/3428 , G06F11/3476
摘要： Method and apparatus for creating benchmark programs for the analysis of java virtual machine implementations are implemented. Java applications and applets are compiled into an intermediate code referred to as byte code. The Java byte code forms the machine code for the Java Virtual Machine. The Java Virtual Machine running on top of a hardware platform translates the byte code into native machine code for execution on the hardware platform on which the Java Virtual Machine is running. The performance of a Java Virtual Machine is improved by the use of a so-called "just in time" (JIT) compiler that translates commonly occurring sequences of bytes codes in the native instruction sequences which are then stored for later execution. Critical to the performance of the JIT is the ability of the JIT to optimally compile for the most commonly occurring sequences of byte codes. The method and apparatus for creating benchmark programs provides a means for performance measurements with respect to such sequences.
摘要翻译：实现用于创建用于分析java虚拟机实现的基准程序的方法和装置。 Java应用程序和小程序被编译成称为字节码的中间代码。 Java字节代码形成Java虚拟机的机器代码。运行在硬件平台上的Java虚拟机将字节码转换为本地机器代码，以便在运行Java虚拟机的硬件平台上执行。通过使用所谓的“即时”（JIT）编译器来改进Java虚拟机的性能，该编译器将本地指令序列中常见的字节码序列翻译成随后的存储以备以后执行。对JIT的性能至关重要的是JIT对最常发生的字节码序列进行最佳编译的能力。用于创建基准程序的方法和装置提供了相对于这种序列的性能测量的手段。

5. 发明授权

US6002872A Method and apparatus for structured profiling of data processing systems and applications 失效
标题翻译：用于数据处理系统和应用程序的结构化分析的方法和装置
公开(公告)号：US6002872A
公开(公告)日：1999-12-14
申请号：US52329
申请日：1998-03-31
申请人： William Preston Alexander, III , Robert Francis Berry , Donald L. Mulvey , Robert John Urquhart
发明人： William Preston Alexander, III , Robert Francis Berry , Donald L. Mulvey , Robert John Urquhart
IPC分类号： G06F11/28 , G06F11/34 , G06F11/36 , G06F7/00 , G06F9/40
CPC分类号： G06F11/3612 , G06F11/3466 , Y10S707/99933
摘要： A method for monitoring performance of a program. A periodically occurring event is detected and a stack associated with the program is identified in response to a detection of the periodically occurring event, which may be a timer interrupt. The stack is examined to identify each routine (and specific invocation point, or offset) that is currently executing in association with the program. Each routine (and offset) is represented as a node in a tree structure.
摘要翻译：一种用于监视程序性能的方法。检测到周期性发生的事件，并且响应于可以是定时器中断的周期性发生的事件的检测来识别与程序相关联的堆栈。检查堆栈以识别与程序相关联的当前执行的每个例程（以及特定的调用点或偏移量）。每个例程（和偏移量）都表示为树结构中的一个节点。

6. 发明授权

US06662359B1 System and method for injecting hooks into Java classes to handle exception and finalization processing 失效
标题翻译：将钩子注入Java类中以处理异常和完成处理的系统和方法
公开(公告)号：US06662359B1
公开(公告)日：2003-12-09
申请号：US09620725
申请日：2000-07-20
申请人： Robert Francis Berry , John Day Howard , Riaz Y. Hussain , Frank Eliot Levine , Robert John Urquhart
发明人： Robert Francis Berry , John Day Howard , Riaz Y. Hussain , Frank Eliot Levine , Robert John Urquhart
IPC分类号： G06F944
CPC分类号： G06F11/3612 , G06F2209/481
摘要： The present invention is directed to a system, method and instructions for handling path flow exception and finalization processing in an object oriented programming language. Initially, each instrumentation method is checked for a code to indicated an exception being thrown. A hook is inserted before the exception code and identifies the method throwing the exception. Methods must also be checked for exception tables. When an exception table is found, then a hook is inserted at the entry point of each exception handler for every entry in the exception table. This hook identifies the method which catches the exception.
摘要翻译：本发明涉及一种用于处理面向对象编程语言中的路径流异常和完成处理的系统，方法和指令。最初，检查每个检测方法的代码以指示正在抛出的异常。在异常代码之前插入一个钩子，并识别抛出异常的方法。还必须检查异常表的方法。当找到异常表时，在异常表中的每个条目的每个异常处理程序的入口点插入一个钩子。该钩子标识捕获异常的方法。

7. 发明授权

US06658654B1 Method and system for low-overhead measurement of per-thread performance information in a multithreaded environment 失效
标题翻译：在多线程环境中对每线程性能信息进行低开销测量的方法和系统
公开(公告)号：US06658654B1
公开(公告)日：2003-12-02
申请号：US09612348
申请日：2000-07-06
申请人： Robert Francis Berry , Robert Tod Dimpsey , Frank Eliot Levine , Enio Manuel Pineda , Robert John Urquhart
发明人： Robert Francis Berry , Robert Tod Dimpsey , Frank Eliot Levine , Enio Manuel Pineda , Robert John Urquhart
IPC分类号： G06F944
CPC分类号： G06F11/3466 , G06F11/3409 , G06F2201/86 , G06F2201/865 , G06F2201/88
摘要： A low-overhead performance measurement of an application executing in a data processing system is provided in order to generate per-thread performance information in a multithreaded environment. While a first set of events is being monitored for a particular thread as a first metric, events that may indirectly cause inaccuracies in the first metric, such as thread switches, are also monitored as a second metric. The presence of a positive value for the second metric is then used to determine that the first metric is inaccurate or unreliable, after which the first metric may be discarded; otherwise, the first metric is considered accurate. For example, the first metric may then be considered a thread-relative metric as it has been observed during a time period in which no thread switch events or interrupt events would have caused the first metric to become inaccurate during the execution of a particular thread.
摘要翻译：提供在数据处理系统中执行的应用的低开销性能测量，以便在多线程环境中生成每线程性能信息。虽然正在将特定线程的第一组事件作为第一度量被监视，但是也可以间接地导致第一度量中的错误（例如线程切换）的事件作为第二度量被监视。然后使用第二度量的正值的存在来确定第一度量不准确或不可靠，之后可以丢弃第一度量; 否则，第一个度量被认为是准确的。例如，可以将第一度量视为线程相对度量，如在其中没有线程切换事件或中断事件将导致第一度量在特定线程的执行期间变得不准确的时间段期间观察到的。

8. 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。

9. 发明授权

US6055492A System and method for providing trace information data reduction 失效
标题翻译：提供跟踪信息数据缩减的系统和方法
公开(公告)号：US6055492A
公开(公告)日：2000-04-25
申请号：US989725
申请日：1997-12-12
申请人： William Preston Alexander, III , Robert Francis Berry , Robert John Urguhart
发明人： William Preston Alexander, III , Robert Francis Berry , Robert John Urguhart
IPC分类号： G06F11/34 , G06F11/00
CPC分类号： G06F11/348 , G06F11/3466
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 time spent 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花费的时间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。

10. 发明授权

US06732357B1 Determining and compensating for temporal overhead in trace record generation and processing 失效
标题翻译：确定和补偿跟踪记录生成和处理中的时间开销
公开(公告)号：US06732357B1
公开(公告)日：2004-05-04
申请号：US09414345
申请日：1999-10-07
申请人： Robert Francis Berry , Jesse Mannes Gordon , Riaz Y. Hussain , Frank Eliot Levine , Robert J. Urquhart
发明人： Robert Francis Berry , Jesse Mannes Gordon , Riaz Y. Hussain , Frank Eliot Levine , Robert J. Urquhart
IPC分类号： G06F945
CPC分类号： G06F11/3636 , G06F11/3419 , G06F11/3466 , G06F2201/835 , G06F2201/865
摘要： A program is profiled with enablement of trace record generation during a first period of time and with disablement of trace record generation during a second period of time. The number of trace records output during the first period of time is determined, and a trace overhead calibration value is computed as an average time for writing the number of trace records output during the first period of time. The trace overhead calibration value may be stored for subsequent use in a profiling-related process in the data processing system. The trace overhead compensation value represents the amount of time required to generate a trace record, and the trace times retrieved from the trace records are adjusted to compensate for the amount of time required to generate those trace records.
摘要翻译：在第一个时间段内对一个程序进行分析，以实现跟踪记录生成，并在第二个时间段内禁用跟踪记录生成。确定在第一时间段期间输出的跟踪记录的数量，并且计算跟踪开销校准值作为写入在第一时间段期间输出的跟踪记录数的平均时间。可以存储跟踪开销校准值以用于随后在数据处理系统中的分析相关过程中使用。跟踪开销补偿值表示生成跟踪记录所需的时间量，并且调整从跟踪记录检索的跟踪时间以补偿生成这些跟踪记录所需的时间量。

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