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1. 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。

2. 发明授权

US07389497B1 Method and system for tracing profiling information using per thread metric variables with reused kernel threads 失效
标题翻译：使用具有重用内核线程的每线程度量变量跟踪分析信息的方法和系统
公开(公告)号：US07389497B1
公开(公告)日：2008-06-17
申请号：US09612350
申请日：2000-07-06
申请人： Ronald O'Neal Edmark , Frank Eliot Levine , Robert J. Urquhart
发明人： Ronald O'Neal Edmark , Frank Eliot Levine , Robert J. Urquhart
IPC分类号： G06F9/44 , G06F9/45
CPC分类号： G06F11/3612
摘要： A method and system for tracing profiling information using per thread metric variables with reused kernel threads is disclosed. In one embodiment kernel thread level metrics are stored by the operating system kernel. A profiler request metric information for the operating system kernel in response to an event. After the kernel thread level metrics are read by the operating system for a profiler, their values are reset to zero by the operating system kernel. The profiler then applies the metric values to base metric values to appropriate Java threads that are stored in nodes in a tree structure base on the type of event and whether or not the kernel thread has been reused. In another embodiment non-zero values of thread level metrics are entered on a liked list. In response to a request from a profiler, the operating system kernel reads each kernel thread's entry in the linked list and zeros each entry. The profiler can then update the intermediate full tree snapshots of profiling information with the collection of non-zero metric variables.
摘要翻译：公开了一种使用具有重用内核线程的每线程度量变量跟踪分析信息的方法和系统。在一个实施例中，内核线程级度量由操作系统内核存储。用于响应于事件的操作系统内核的分析器请求度量信息。在操作系统为分析器读取内核线程级别度量之后，操作系统内核将其值重置为零。分析器然后将度量值应用于基于度量值的适当的Java线程，这些Java线程存储在基于事件类型的树结构中的节点中，以及内核线程是否已被重用。在另一个实施例中，在喜好的列表上输入非零值的线程级度量。响应于分析器的请求，操作系统内核读取链接列表中的每个内核线程的条目，并将每个条目都为零。然后，分析器可以使用非零度量变量的集合来更新分析信息的中间全树快照。

3. 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。

4. 发明授权

US06728955B1 Processing events during profiling of an instrumented program 失效
标题翻译：在分析仪器化程序时处理事件
公开(公告)号：US06728955B1
公开(公告)日：2004-04-27
申请号：US09435005
申请日：1999-11-05
申请人： Robert Francis Berry , John Day Howard , Chester Charles John, Jr. , Frank Eliot Levine , Donald L. Mulvey , Enio Manuel Pineda , Robert J. Urquhart
发明人： Robert Francis Berry , John Day Howard , Chester Charles John, Jr. , Frank Eliot Levine , Donald L. Mulvey , Enio Manuel Pineda , Robert J. Urquhart
IPC分类号： G06F945
CPC分类号： G06F11/3409 , G06F11/3466 , G06F2201/835 , G06F2201/86 , G06F2201/865 , G06F2201/88
摘要： A user may specify a vector of metrics to be used while profiling a program. The vector of metrics may optionally be thread-relative. In response to a notification of an occurrence of the current event, a thread-relative elapsed metric is computed by: determining a current thread; retrieving a stored reference metric for the preceding event of the current thread; obtaining a current reference metric; and computing the thread-relative elapsed metric as a difference between the current reference metric and the stored reference metric. In order to prevent the generation of redundant metric information, the information associated with the vector of metrics maybe placed into the trace records in several different space-saving formats.
摘要翻译：用户可以在分析程序时指定要使用的度量矢量。度量矢量可以可选地是线程相对的。响应于当前事件的发生的通知，通过以下方式来计算线程相对逝去度量：确定当前线程; 检索当前线程的前一事件的存储引用度量; 获得当前参考度量; 以及将所述线程相对逝去度量计算为所述当前参考度量和所存储的参考度量之间的差。为了防止产生冗余度量信息，与度量矢量相关联的信息可以以几种不同的节省空间的格式放置在跟踪记录中。

5. 发明授权

US06904594B1 Method and system for apportioning changes in metric variables in an symmetric multiprocessor (SMP) environment 失效
标题翻译：用于分配对称多处理器（SMP）环境中度量变量变化的方法和系统
公开(公告)号：US06904594B1
公开(公告)日：2005-06-07
申请号：US09612340
申请日：2000-07-06
申请人： Robert Francis Berry , John Day Howard , Frank Eliot Levine , Robert J. Urquhart
发明人： Robert Francis Berry , John Day Howard , Frank Eliot Levine , Robert J. Urquhart
IPC分类号： G06F9/46
CPC分类号： G06F11/3466 , G06F11/3404 , G06F2201/86 , G06F2201/865 , G06F2201/88
摘要： A method and system for monitoring performance of a program using global metric variables to provide the support in an symmetric multiprocessor (SMP) system. A Java virtual machine (Jvm) either calls the profiler whenever bytes are allocated or provides an interface to allow the profiler to determine the value of the change in the metric for the current thread. The profiler then applies the changes to a metric for the current thread. Alternatively, per processor data areas are maintained for storing per processor metric values. Whenever a thread switch occurs or there is a request for the metric on a specified thread, an operating system kernel updates the thread level metric values with changes in the values per processor metrics.
摘要翻译：一种用于使用全局度量变量监视程序性能以在对称多处理器（SMP）系统中提供支持的方法和系统。 Java虚拟机（Jvm）可以在分配字节时调用分析器，或提供接口以允许分析器确定当前线程的度量值的变化值。分析器然后将更改应用于当前线程的度量。或者，维护每个处理器数据区域以存储每个处理器度量值。无论何时发生线程切换或指定线程上的度量请求，操作系统内核都会使用每个处理器度量值的更改更新线程级度量值。

6. 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。

7. 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。

8. 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。

9. 发明授权

US06708169B1 Apparatus and method for generating a merged symbol file for verifying symbolic data 失效
标题翻译：用于生成用于验证符号数据的合并符号文件的装置和方法
公开(公告)号：US06708169B1
公开(公告)日：2004-03-16
申请号：US09613095
申请日：2000-07-10
申请人： Robert Francis Berry , Chester Charles John, Jr. , Frank Eliot Levine , Christopher Michael Richardson , Robert J. Urquhart
发明人： Robert Francis Berry , Chester Charles John, Jr. , Frank Eliot Levine , Christopher Michael Richardson , Robert J. Urquhart
IPC分类号： G06F1730
CPC分类号： G06F11/3466 , G06F2201/865 , Y10S707/99936 , Y10S707/99937 , Y10S707/99944
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。

10. 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。

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