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1. 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。

2. 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。

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

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。

5. 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。

6. 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。

7. 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。

8. 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。

9. 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。

10. 发明授权

US06754890B1 Method and system for using process identifier in output file names for associating profiling data with multiple sources of profiling data 失效
标题翻译：在输出文件名中使用进程标识符的方法和系统，用于将分析数据与多个分析数据源相关联
公开(公告)号：US06754890B1
公开(公告)日：2004-06-22
申请号：US09460847
申请日：1999-12-14
申请人： Robert Francis Berry , Ronald O'Neal Edmark , Riaz Y. Hussain , Frank Eliot Levine
发明人： Robert Francis Berry , Ronald O'Neal Edmark , Riaz Y. Hussain , Frank Eliot Levine
IPC分类号： G06F944
CPC分类号： G06F11/3409 , G06F11/3419 , G06F11/3466 , G06F11/3476 , G06F2201/86 , G06F2201/865
摘要： A method of monitoring execution performance of a program is provided. A process identifier associated with a process within a program is determined, and a trace output file is created for the process such that the file name of the trace output file contains the process identifier. Trace records are generated in response to events within the process. The trace records associated with the process are then written to the trace output file associated with the process. Multiple processes may then be associated with unique trace output files simultaneously. Using this methodology, multiple instances of JVMs may be executing simultaneously, and each JVM may be generating trace records through a profiler. However, the origin of the trace records, as identified by the process identifier, or PID, of the JVM is used to place the trace information into a file that is identified through the use of the same PID.
摘要翻译：提供了一种监视程序的执行性能的方法。确定与程序内的进程相关联的进程标识符，并为该进程创建跟踪输出文件，使得跟踪输出文件的文件名包含进程标识符。生成跟踪记录以响应进程内的事件。然后将与进程关联的跟踪记录写入与进程关联的跟踪输出文件。然后，多个进程可以同时与唯一的跟踪输出文件相关联。使用这种方法，JVM的多个实例可以同时执行，并且每个JVM可能通过分析器生成跟踪记录。但是，由JVM的进程标识符或PID标识的跟踪记录的来源用于将跟踪信息放入通过使用相同PID标识的文件中。

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