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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

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。

3. 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。

4. 发明授权

US06289503B1 System and method for trace verification 失效
标题翻译：跟踪验证的系统和方法
公开(公告)号：US06289503B1
公开(公告)日：2001-09-11
申请号：US09159963
申请日：1998-09-24
申请人： Robert Francis Berry , Riaz Y. Hussain , Chester Charles John, Jr. , Frank Eliot Levine
发明人： Robert Francis Berry , Riaz Y. Hussain , Chester Charles John, Jr. , Frank Eliot Levine
IPC分类号： G06F945
CPC分类号： G06F11/3636 , G06F8/71
摘要： When building an image for a JavaOS client, a date/time stamp is inserted into the symbolic image produced. When a trace program is initiated against this image, the same Build Identifier is inserted into the produced trace data. A comparison is made between the Build Identifiers to ensure that the trace file is analyzed using the correct symbolic image.
摘要翻译：在为JavaOS客户端构建映像时，会在生成的符号映像中插入日期/时间戳。当针对该图像启动跟踪程序时，将相同的构建标识符插入到生成的跟踪数据中。在构建标识符之间进行比较，以确保使用正确的符号图像分析跟踪文件。

5. 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。

6. 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。

7. 发明授权

US06658416B1 Apparatus and method for creating an indexed database of symbolic data for use with trace data of a computer program 失效
标题翻译：用于创建与计算机程序的跟踪数据一起使用的符号数据的索引数据库的装置和方法
公开(公告)号：US06658416B1
公开(公告)日：2003-12-02
申请号：US09613101
申请日：2000-07-10
申请人： Riaz Y. Hussain , Chester Charles John, Jr. , Frank Eliot Levine , Christopher Michael Richardson , Robert J. Urguhart
发明人： Riaz Y. Hussain , Chester Charles John, Jr. , Frank Eliot Levine , Christopher Michael Richardson , Robert J. Urguhart
IPC分类号： G06F1730
CPC分类号： G06F11/3466 , G06F2201/865 , Y10S707/99931
摘要： An apparatus and method for cataloging symbolic data for use in performance analysis of computer programs is provided. The apparatus and method stores symbolic data for loaded modules during or shortly after a performance trace and utilizes the stored symbolic data when performing a performance analysis at a later time. A merged symbol file is generated for a computer program, or application, under trace. The merged symbol file contains information useful in performing symbolic resolution of address information in trace files for each instance of a module. During post processing of the trace information generated by a performance trace of a computer program, symbolic information stored in the merged symbol file is compared to the trace information stored in the trace file. The correct symbolic information in the merged symbol file for loaded modules is identified based a number of validating criteria. The correct symbolic information for the loaded modules may then be stored as an indexed database that is used to resolve address information into corresponding symbolic information when providing the trace information to a display for use by a user.
摘要翻译：提供了一种用于对符号数据进行编目以用于计算机程序的性能分析的装置和方法。该装置和方法在性能跟踪期间或不久之后存储加载模块的符号数据，并且在稍后执行性能分析时利用所存储的符号数据。为跟踪的计算机程序或应用程序生成合并的符号文件。合并的符号文件包含有助于在模块的每个实例的跟踪文件中执行地址信息的符号解析。在由计算机程序的性能跟踪产生的跟踪信息的后处理中，将存储在合并的符号文件中的符号信息与存储在跟踪文件中的跟踪信息进行比较。基于多个验证标准来识别加载模块的合并符号文件中的正确符号信息。然后可以将加载的模块的正确符号信息存储为索引数据库，该索引数据库用于在向显示器提供跟踪信息以供用户使用时将地址信息解析为对应的符号信息。

8. 发明授权

US06742178B1 System and method for instrumenting application class files with correlation information to the instrumentation 失效
标题翻译：用于将具有相关信息的应用程序类文件检测到仪器的系统和方法
公开(公告)号：US06742178B1
公开(公告)日：2004-05-25
申请号：US09620729
申请日：2000-07-20
申请人： Robert Francis Berry , Weiming Gu , Riaz Y. Hussain , Frank Eliot Levine , Wai Yee Peter Wong
发明人： Robert Francis Berry , Weiming Gu , Riaz Y. Hussain , Frank Eliot Levine , Wai Yee Peter Wong
IPC分类号： G06F944
CPC分类号： G06F11/3612 , G06F11/3466
摘要： The present invention is directed to a system and method for modifying a class file for the purpose of instrumenting without requiring separate files to correlate the instrumentation. A class file is instrumented with hooks. Each hook is injected in a method at a critical point in the code for tracking path flow, such as where the method will be entered or exited. Each hook includes an identifier to identify the method in which it is injected. Rather than using the method's name, hooks use unique major and minor codes to identify the method. Static initializers are declared for the class to output other hooks identifying the methods being instrumented. When a class is loaded, the static initializers are executed and hooks identifying the method name and the major and minor codes for each instrumented method are output to, for instance, a trace record. Then, when a method is entered or exited, the hooks identifying the entry or exit are also outputted to a trace record. When postprocessing the trace records, class and instrumentation correlation information is available for merging from trace records in the trace stream.
摘要翻译：本发明涉及一种用于修改类文件以用于仪器化而不需要单独的文件来关联仪器的系统和方法。一个类文件装有钩子。每个挂钩都是以跟踪路径流的代码临界点的方法注入的，比如输入或退出方法。每个钩子包括标识符以标识其被注入的方法。钩子使用唯一的主要和次要代码来标识方法，而不是使用方法的名称。声明静态初始化器为类输出标识要检测的方法的其他钩子。当加载类时，将执行静态初始化程序，并将识别方法名称的钩子和每个已检测方法的主要和次要代码输出到例如跟踪记录。然后，当输入或退出方法时，识别入口或出口的钩子也被输出到跟踪记录。当跟踪记录进行后处理时，类和仪器相关信息可用于从跟踪流中的跟踪记录合并。

9. 发明授权

US06735758B1 Method and system for SMP profiling using synchronized or nonsynchronized metric variables with support across multiple systems 有权
标题翻译：使用同步或非同步度量变量的SMP概要分析的方法和系统，并支持多个系统
公开(公告)号：US06735758B1
公开(公告)日：2004-05-11
申请号：US09611666
申请日：2000-07-06
申请人： Robert Francis Berry , Riaz Y. Hussain , Frank Eliot Levine , Robert J. Urquhart
发明人： Robert Francis Berry , Riaz Y. Hussain , Frank Eliot Levine , Robert J. Urquhart
IPC分类号： G06F944
CPC分类号： G06F11/3404 , G06F11/3466 , G06F2201/81 , G06F2201/86 , G06F2201/88
摘要： The value of non-discrete metric variables are synchronized at the processor level. When the profiler requests metric information for non-discrete metric variables, the operating system kernel obtains a global value for the requested metric rather than obtaining per-processor metric values for each processor. The global value may be written to trace records. By using a single global per-processor metric for all processors, a single global value of the last metric variable may be used for calculating the resources consumed on all processors since a last recorded event.
摘要翻译：非离散度量变量的值在处理器级别同步。当分析器请求非离散度量变量的度量信息时，操作系统内核将获取所请求度量的全局值，而不是为每个处理器获取每处理器度量值。全局值可能写入跟踪记录。通过为所有处理器使用单个全局每处理器度量，最后一个度量变量的单个全局值可用于计算自上次记录事件以来在所有处理器上消耗的资源。

10. 发明授权

US06598012B1 Method and system for compensating for output overhead in trace date using trace record information 失效
标题翻译：使用跟踪记录信息补偿跟踪数据中的输出开销的方法和系统
公开(公告)号：US06598012B1
公开(公告)日：2003-07-22
申请号：US09414344
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： G06F1500
CPC分类号： G06F11/3476 , G06F11/3096 , G06F11/323 , G06F11/3419 , G06F11/3466 , G06F2201/805 , G06F2201/86
摘要： A method and system for compensating for output overhead in trace data is provided by analyzing and compensating for the overhead associated with outputting trace information to a trace buffer or a trace file in the form of trace records. A trace record represents an occurrence of some profiling event of interest. Each trace record contains a starting timestamp representing the time at which the generation of the trace record was commenced and an ending timestamp representing the time at which the generation of the trace record was completed. In order to compute the period of execution time attributable to the application program or system being profiled, a starting timestamp of a trace record is compared with the ending timestamp of a preceding trace record, and the difference between the timestamps is directly related to the execution time of the application program or system being profiled. The time period between the timestamps in a trace record is implicitly disregarded as attributable to overhead in the generation of trace records.
摘要翻译：通过分析和补偿以跟踪记录的形式向跟踪缓冲区或跟踪文件输出跟踪信息相关的开销，提供补偿跟踪数据中输出开销的方法和系统。跟踪记录表示感兴趣的一些分析事件的发生。每个跟踪记录包含表示生成跟踪记录开始的时间的开始时间戳，以及表示完成跟踪记录生成的时间的结束时间戳。为了计算归因于正在分析的应用程序或系统的执行时间的周期，将跟踪记录的开始时间戳与先前跟踪记录的结束时间戳进行比较，并且时间戳之间的差异与执行直接相关应用程序或系统被分析的时间。跟踪记录中的时间戳之间的时间间隔隐含地被忽略，这归因于生成跟踪记录的开销。

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