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11. 发明授权

US06766511B1 Apparatus and method for performing symbolic resolution of modules using static representations of a trace 失效
标题翻译：使用迹线的静态表示执行模块的符号分辨的装置和方法
公开(公告)号：US06766511B1
公开(公告)日：2004-07-20
申请号：US09613194
申请日：2000-07-10
申请人： Robert Francis Berry , Chester Charles John, Jr. , Frank Eliot Levine , Christopher Michael Richardson , Robert J. Urguhart
发明人： Robert Francis Berry , Chester Charles John, Jr. , Frank Eliot Levine , Christopher Michael Richardson , Robert J. Urguhart
IPC分类号： G06F944
CPC分类号： G06F11/3612 , G06F11/3476 , G06F2201/805 , G06F2201/865 , G06F2201/88
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。

12. 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。

13. 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。

14. 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。

15. 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。

16. 发明授权

US06546548B1 Method and system for compensating for output overhead in trace data using initial calibration information 失效
标题翻译：使用初始校准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：US06546548B1
公开(公告)日：2003-04-08
申请号：US09414346
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： G06F11/3466 , G06F11/3476 , G06F2201/835 , G06F2201/86 , G06F2201/865 , G06F2201/88
摘要： A method and system for compensating for trace overhead is provided by analyzing and compensating for the temporal overhead associated with generating or outputting trace information to a trace buffer or a trace file in the form of trace records. A trace record generally represents an occurrence of a profiling event of interest. The amount of time required to generate a trace record may be determined, and the trace times retrieved from the trace records are adjusted to compensate for the amount of time required to generate those trace records. A trace overhead calibration value may be determined by computing the average time necessary to generate a trace record, or in certain cases, by computing the minimum time necessary to generate a trace record. The trace overhead calibration value is stored for subsequent use in a profiling-related process in the data processing system.
摘要翻译：通过分析和补偿与跟踪缓冲区或跟踪文件以跟踪记录形式的跟踪文件相关联的时间开销来提供补偿跟踪开销的方法和系统。跟踪记录通常表示感兴趣的分析事件的发生。可以确定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。跟踪开销校准值可以通过计算生成跟踪记录所需的平均时间，或者在某些情况下，通过计算生成跟踪记录所需的最小时间来确定。跟踪开销校准值被存储以供随后在数据处理系统中的分析相关过程中使用。

17. 发明授权

US06539339B1 Method and system for maintaining thread-relative metrics for trace data adjusted for thread switches 有权
标题翻译：用于维护针对线程交换机调整的跟踪数据的线程相关度量的方法和系统
公开(公告)号：US06539339B1
公开(公告)日：2003-03-25
申请号：US09393087
申请日：1999-09-09
申请人： Robert Francis Berry , Ronald O'Neal Edmark , Frank Eliot Levine , Robert J. Urquhart
发明人： Robert Francis Berry , Ronald O'Neal Edmark , Frank Eliot Levine , Robert J. Urquhart
IPC分类号： G06F1100
CPC分类号： G06F11/3466 , G06F11/3476 , G06F2201/86 , G06F2201/865
摘要： A method and system for maintaining a thread-relative metric for trace data using device driver support is provided. A profiling process may detect a current event, and in response to the current event, may request an elapsed metric since a preceding event. The profiling process then receives a thread-relative elapsed metric and may output a trace record for the current event in which is stored a metric equal to the received thread-relative elapsed metric. In response to a notification of an occurrence of the current event, a device driver computes the thread-relative elapsed metric by: determining a current thread; retrieving a stored metric for the preceding event of the current thread; obtaining a current metric; and computing the thread-relative elapsed metric as a difference between the current metric and the stored metric.
摘要翻译：提供了一种使用设备驱动程序支持来维护跟踪数据的线程相关度量的方法和系统。分析过程可以检测当前事件，并且响应于当前事件，可以从先前的事件请求经过的度量。分析过程然后接收线程相对逝去的度量，并且可以输出当前事件的跟踪记录，其中存储等于所接收的线程相对经度量的度量。响应于当前事件的发生的通知，设备驱动程序通过以下方式计算线程相对逝去的度量：确定当前线程; 检索当前线程的前一事件的存储度量; 获得当前度量; 以及将线程相对逝去的度量计算为当前度量和存储的度量之间的差。

18. 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。

19. 发明授权

US06457111B1 Method and system for allocation of a persistence indicator for an object in an object-oriented environment 有权
标题翻译：在面向对象环境中为对象分配持久性指示符的方法和系统
公开(公告)号：US06457111B1
公开(公告)日：2002-09-24
申请号：US09460774
申请日：1999-12-14
申请人： John Day Howard , Kean G. Kuiper , Frank Eliot Levine , William Robert Reynolds , Robert J. Urquhart
发明人： John Day Howard , Kean G. Kuiper , Frank Eliot Levine , William Robert Reynolds , Robert J. Urquhart
IPC分类号： G06F1200
CPC分类号： G06F12/0253 , Y10S707/99953 , Y10S707/99957
摘要： A method and system are disclosed for operating an object-oriented environment within a computer system. The execution of the object-oriented environment is initiated. A first memory location is allocated in a memory area within the object-oriented environment for storing an object. A second memory location is allocated in the memory area with the allocation of the first memory location for storing a persistence indicator. The persistence indicator indicates a point during the execution of the object-oriented environment at which the allocation of the first memory location occurred. A total number of bytes of the memory area which had been allocated during the execution of the object-oriented environment when the allocation of the first memory location occurred is stored as the persistence indicator.
摘要翻译：公开了用于在计算机系统内操作面向对象的环境的方法和系统。启动面向对象环境的执行。第一存储器位置被分配在用于存储对象的面向对象环境内的存储器区域中。第二存储器位置被分配在存储区域中，分配用于存储持久性指示符的第一存储器位置。持久性指示符指示在执行第一存储器位置的分配的面向对象环境的执行期间的点。当发生第一存储器位置的分配时，在执行面向对象环境期间已经分配的存储器区域的总字节数被存储为持久性指示符。

20. 发明授权

US06560773B1 Method and system for memory leak detection in an object-oriented environment during real-time trace processing 失效
标题翻译：在实时跟踪处理中面向对象环境中的内存泄漏检测方法和系统
公开(公告)号：US06560773B1
公开(公告)日：2003-05-06
申请号：US09414331
申请日：1999-10-07
申请人： William Preston Alexander, III , John Day Howard , Frank Eliot Levine , William Robert Reynolds , Robert J. Urquhart
发明人： William Preston Alexander, III , John Day Howard , Frank Eliot Levine , William Robert Reynolds , Robert J. Urquhart
IPC分类号： G06F1730
CPC分类号： G06F11/3466 , G06F11/3476 , G06F2201/86 , G06F2201/865 , Y10S707/99953 , Y10S707/99957
摘要： A method and system for detecting memory leaks in an object-oriented environment during real-time trace processing is provided. During the profiling of a program executing in a data processing system, a profiler processes events caused by the execution of the program, and the profiler maintains a profile data structure containing execution-related metrics for the program. The execution-related metrics may include object allocation and deallocation metrics that are associated with object processing initiated on behalf of an executing method. An object allocator allocates objects during the execution of the program and modifies object allocation metrics in the profile data structure. An object deallocator, such as a garbage collector, deallocates objects during the execution of the program and modifies object deallocation metrics in the profile data structure. The object allocation metrics and the object deallocation metrics may be compared to identify memory leaks.
摘要翻译：提供了一种用于在实时跟踪处理期间检测面向对象环境中的内存泄漏的方法和系统。在对在数据处理系统中执行的程序进行分析时，分析器处理由程序执行引起的事件，并且分析器维护包含程序的执行相关度量的简档数据结构。执行相关度量可以包括与代表执行方法发起的对象处理相关联的对象分配和重新分配度量。对象分配器在执行程序期间分配对象，并在配置文件数据结构中修改对象分配度量。诸如垃圾收集器的对象分配器在执行程序期间释放对象，并修改配置文件数据结构中的对象分配度量。可以比较对象分配度量和对象分配度量以识别内存泄漏。

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