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51. 发明授权

US07870170B2 Method and apparatus for determining leaks in a Java heap 失效
标题翻译：用于确定Java堆中泄漏的方法和装置
公开(公告)号：US07870170B2
公开(公告)日：2011-01-11
申请号：US11121129
申请日：2005-05-03
申请人： Phani Gopal V. Achanta , Robert Dimpsey , Frank Eliot Levine , Robert John Urquhart
发明人： Phani Gopal V. Achanta , Robert Dimpsey , Frank Eliot Levine , Robert John Urquhart
IPC分类号： G06F12/00 , G06F17/30
CPC分类号： G06F12/0253 , G06F11/0718 , G06F11/073 , G06F11/0751
摘要： An improved method, apparatus, and computer instructions for identifying a memory leak in a heap. Prior to the start of the observation period, all live objects in the heap are identified to form a set of live objects by altering an indicator in the live objects. After running the system for the required amount of time or until completion of the event being monitored, the system is used to obtain the list of live objects without the altered indicator. Live objects without the altered indicators form the most likely objects associated with a memory leak.
摘要翻译：用于识别堆中的内存泄漏的改进的方法，装置和计算机指令。在观察期开始之前，通过改变活动对象中的指示符来识别堆中的所有活动对象以形成一组活动对象。在系统运行所需的时间或直到监视事件完成之前，系统将用于获取活动对象的列表而不改变指示符。没有改变的指示器的实时对象形成与内存泄漏相关联的最可能的对象。

52. 发明授权

US07657875B2 System and method for collecting a plurality of metrics in a single profiling run of computer code 失效
标题翻译：用于在单个计算机代码的分析运行中收集多个度量的系统和方法
公开(公告)号：US07657875B2
公开(公告)日：2010-02-02
申请号：US11104323
申请日：2005-04-12
申请人： William Preston Alexander, III , Scott Thomas Jones , Frank Eliot Levine , Robert John Urquhart
发明人： William Preston Alexander, III , Scott Thomas Jones , Frank Eliot Levine , Robert John Urquhart
IPC分类号： G06F9/44
CPC分类号： G06F11/3616
摘要： A system and method for collecting a plurality of metrics during a single run of a computer program. The mechanism of the present invention initializes a plurality of counters to count events associated with metrics of interest. The mechanism of the present invention then counts the occurrence of events associated with metrics of interest during a single execution of a computer program. When a branch has been taken, a trace record is generated for the branch taken, wherein the generated trace record contains a count of events associated with the metrics of interest for the branch taken.
摘要翻译：一种用于在计算机程序的单次运行期间收集多个度量的系统和方法。本发明的机制初始化多个计数器以对与感兴趣度量相关联的事件进行计数。然后，本发明的机制在计算机程序的单次执行期间对与感兴趣的度量相关联的事件的发生进行计数。当采取分支时，为所采取的分支生成跟踪记录，其中生成的跟踪记录包含与所采取的分支的感兴趣度量相关联的事件计数。

53. 发明申请

US20080244239A1 Method and System for Autonomic Monitoring of Semaphore Operations in an Application 有权
标题翻译：应用程序中信号量操作的自动监控方法和系统
公开(公告)号：US20080244239A1
公开(公告)日：2008-10-02
申请号：US12137430
申请日：2008-06-11
申请人： Jimmie Earl DeWitt , Frank Eliot Levine , Christopher Michael Richardson , Robert John Urquhart
发明人： Jimmie Earl DeWitt , Frank Eliot Levine , Christopher Michael Richardson , Robert John Urquhart
IPC分类号： G06F9/30
CPC分类号： G06F9/3824 , G06F9/30181 , G06F9/3836 , G06F9/384 , G06F9/3857
摘要： A method, an apparatus, and a computer program product in a data processing system are presented for using hardware assistance for gathering performance information that significantly reduces the overhead in gathering such information. Performance indicators are associated with instructions or memory locations, and processing of the performance indicators enables counting of events associated with execution of those instructions or events associated with accesses to those memory locations. The performance information that has been dynamically gathered from the assisting hardware is available to the software application during runtime in order to autonomically affect the behavior of the software application, particularly to enhance its performance. For example, the counted events may be used to autonomically collecting statistical information about the ability of a software application to successfully acquire a semaphore.
摘要翻译：提出了一种数据处理系统中的方法，装置和计算机程序产品，用于使用硬件辅助来收集性能信息，这显着地减少了收集这些信息的开销。性能指标与指令或存储器位置相关联，并且性能指示符的处理使得能够对与执行与那些存储器位置的访问相关联的那些指令或事件相关联的事件进行计数。在运行期间，从辅助硬件动态收集的性能信息可用于软件应用程序，以便自主地影响软件应用程序的行为，特别是增强其性能。例如，计数事件可用于自动收集有关软件应用程序成功获取信号量的能力的统计信息。

54. 发明授权

US07340629B2 Method and system for application-based normalization of processor clocks in a multiprocessor environment 有权
标题翻译：多处理器环境中处理器时钟的基于应用程序归一化的方法和系统
公开(公告)号：US07340629B2
公开(公告)日：2008-03-04
申请号：US10607459
申请日：2003-06-26
申请人： Clive Richard Kates , Frank Eliot Levine , Robert John Urquhart
发明人： Clive Richard Kates , Frank Eliot Levine , Robert John Urquhart
IPC分类号： G06F1/12
CPC分类号： G06F1/12
摘要： A method is presented for enabling application-level software to normalize processor clock values within a multiprocessor data processing system. A first processor number associated with a first processor is obtained such that the first processor executes one or more instructions for obtaining the first processor number. Subsequent to obtaining the first processor number, a processor clock value is obtained such that the processor clock value is associated with a processor that executes one or more instructions for obtaining the processor clock value. Subsequent to obtaining the processor clock value, a second processor number associated with a second processor is obtained such that the second processor executes one or more instructions for obtaining the second processor number. If the first processor number and the second processor number are equal, then the first processor number is used to retrieve a compensation value for a normalization operation on the processor clock value.
摘要翻译：提出了一种使应用级软件能够对多处理器数据处理系统内的处理器时钟值进行归一化的方法。获得与第一处理器相关联的第一处理器号码，使得第一处理器执行用于获得第一处理器号码的一个或多个指令。在获得第一处理器号码之后，获得处理器时钟值，使得处理器时钟值与执行用于获得处理器时钟值的一个或多个指令的处理器相关联。在获得处理器时钟值之后，获得与第二处理器相关联的第二处理器号码，使得第二处理器执行用于获得第二处理器号码的一个或多个指令。如果第一处理器号码和第二处理器号码相等，则使用第一处理器号码来检索针对处理器时钟值的归一化操作的补偿值。

55. 发明授权

US07290255B2 Autonomic method and apparatus for local program code reorganization using branch count per instruction hardware 失效
标题翻译：用于本地程序代码重组的自动方法和装置，每个指令硬件使用分支计数
公开(公告)号：US07290255B2
公开(公告)日：2007-10-30
申请号：US10757156
申请日：2004-01-14
申请人： Jimmie Earl DeWitt, Jr. , Frank Eliot Levine , Christopher Michael Richardson , Robert John Urquhart
发明人： Jimmie Earl DeWitt, Jr. , Frank Eliot Levine , Christopher Michael Richardson , Robert John Urquhart
IPC分类号： G06F9/45 , G06F9/44 , G06F7/38 , G06F11/00
CPC分类号： G06F11/3612
摘要： A method, apparatus, and computer instructions for local program reorganization using branch count per instruction hardware. In a preferred embodiment, a hardware counter is used in the present invention to count the number of times a branch is taken when branch instructions are executed. Branch count statistics generated from the hardware counters are available to a program in order to analyze whether code reorganization is necessary. If reorganization is necessary, the program autonomically reorganizes instructions locally at run time to allow more instructions to be executed prior to taking a branch, so that the number of branches taken is minimized without modifying underlying program code.
摘要翻译：一种使用每个指令硬件分支计数的本地程序重组的方法，设备和计算机指令。在优选实施例中，在本发明中使用硬件计数器来计数执行分支指令时分支的次数。从硬件计数器生成的分支计数统计信息可用于程序，以便分析代码重组是否必要。如果重组是必要的，程序在运行时自动地重新组织指令，以允许更多的指令在执行分支之前被执行，以便在不修改底层程序代码的情况下最小化分支数量。

56. 发明授权

US07082486B2 Method and apparatus for counting interrupts by type 失效
标题翻译：用于按类型计数中断的方法和装置
公开(公告)号：US07082486B2
公开(公告)日：2006-07-25
申请号：US10757198
申请日：2004-01-14
申请人： Jimmie Earl DeWitt, Jr. , Frank Eliot Levine , Christopher Michael Richardson , Robert John Urquhart
发明人： Jimmie Earl DeWitt, Jr. , Frank Eliot Levine , Christopher Michael Richardson , Robert John Urquhart
IPC分类号： G06F13/24 , G06F12/02
CPC分类号： G06F13/24
摘要： A method, apparatus, and computer instructions for counting interrupts by type. An interrupt count is incremented when a particular type of interrupt occurs. The count may be stored in the IDT or an interrupt count table outside the IDT. The interrupt unit increments the count each time a particular type of interrupt occurs. In the event of a potential count overflow, the mechanism of the present invention provides logic necessary to notify software in order to handle the overflow.
摘要翻译：一种用于按类型计数中断的方法，装置和计算机指令。当发生特定类型的中断时，中断计数递增。计数可以存储在IDT以外的IDT或中断计数表中。每当发生特定类型的中断时，中断单元递增计数。在潜在计数溢出的情况下，本发明的机制提供了为了处理溢出而通知软件所需的逻辑。

57. 发明授权

US06931354B2 Method, apparatus and computer program product for efficient, large counts of per thread performance events 失效
标题翻译：方法，设备和计算机程序产品，用于高效，大量的每线程性能事件
公开(公告)号：US06931354B2
公开(公告)日：2005-08-16
申请号：US10713742
申请日：2003-11-13
申请人： Scott Thomas Jones , Frank Eliot Levine , Robert John Urquhart
发明人： Scott Thomas Jones , Frank Eliot Levine , Robert John Urquhart
IPC分类号： G06F11/30 , G06F15/00 , G21C17/00
CPC分类号： G06F11/3466 , G06F2201/86 , G06F2201/88
摘要： Performance events are counted for a computing system. This includes designating a first processor counter as a low-order counter for counting a certain performance event encountered by the processor and associating with the first counter a second counter as a high-order counter. The first counter is incremented responsive to detecting the performance event for a first processing thread. Responsive to a second thread, an accumulator in system memory for the first thread and first and second counters is updated. Responsive to the first thread becoming active, values of the first and second counters are loaded from the accumulator. Responsive to a user call to read and return a combined value, a first instance of the second counter is read, then the first counter is read and a second instance of the second counter is read before returning the combined value.
摘要翻译：计算系统计算出性能事件。这包括将第一处理器计数器指定为低阶计数器，用于对处理器遇到的某个性能事件进行计数，并将第一计数器与第二计数器相关联，作为高阶计数器。响应于检测第一处理线程的性能事件，第一计数器递增。响应于第二线程，更新用于第一线程和第一和第二计数器的系统存储器中的累加器。响应于第一线程变为活动状态，第一和第二计数器的值从累加器加载。响应于用户调用读取和返回组合值，读取第二计数器的第一实例，然后读取第一计数器，并且在返回组合值之前读取第二计数器的第二实例。

58. 发明授权

US08615619B2 Qualifying collection of performance monitoring events by types of interrupt when interrupt occurs 有权
标题翻译：当中断发生时，通过中断类型对性能监视事件进行合格收集
公开(公告)号：US08615619B2
公开(公告)日：2013-12-24
申请号：US13004153
申请日：2011-01-11
申请人： Jimmie Earl DeWitt, Jr. , Frank Eliot Levine , Christopher Michael Richardson , Robert John Urquhart
发明人： Jimmie Earl DeWitt, Jr. , Frank Eliot Levine , Christopher Michael Richardson , Robert John Urquhart
IPC分类号： G06F13/24 , G06F9/44 , G01R31/28
CPC分类号： G06F13/24 , G06F11/3466 , G06F11/348 , G06F2201/86 , G06F2201/88 , G06F2201/885
摘要： A method, apparatus, and computer instructions for qualifying events by types of interrupt when interrupt occurs in the processor of a data processing system. A programmable performance monitoring unit (PMU) is used to program hardware counters that collect events associated with a type of interrupt, including nested interrupts. The performance monitoring unit may also count events that occur while servicing interrupt requests based upon the state of interrupt processing. Events that are known to the performance monitoring unit such as instruction retired, TLB misses, may be counted at the same time using a number of performance monitoring counters in the performance monitoring unit.
摘要翻译：一种用于在数据处理系统的处理器中发生中断时通过中断类型对事件进行限定的方法，装置和计算机指令。可编程性能监控单元（PMU）用于对收集与一种中断类型相关的事件（包括嵌套中断）的硬件计数器进行编程。性能监视单元还可以基于中断处理的状态来计算在服务中断请求时发生的事件。性能监控单元已知的事件，如指令退出，TLB未命中，可以同时使用性能监视单元中的多个性能监视计数器进行计数。

59. 发明授权

US07895382B2 Method and apparatus for qualifying collection of performance monitoring events by types of interrupt when interrupt occurs 有权
标题翻译：用于通过中断发生时的中断类型来限定性能监视事件的收集的方法和装置
公开(公告)号：US07895382B2
公开(公告)日：2011-02-22
申请号：US10757186
申请日：2004-01-14
申请人： Jimmie Earl DeWitt, Jr. , Frank Eliot Levine , Christopher Michael Richardson , Robert John Urquhart
发明人： Jimmie Earl DeWitt, Jr. , Frank Eliot Levine , Christopher Michael Richardson , Robert John Urquhart
IPC分类号： G06F13/24
CPC分类号： G06F13/24 , G06F11/3466 , G06F11/348 , G06F2201/86 , G06F2201/88 , G06F2201/885
摘要： A method, apparatus, and computer instructions for qualifying events by types of interrupt when interrupt occurs in the processor of a data processing system. A programmable performance monitoring unit (PMU) is used to program hardware counters that collect events associated with a type of interrupt, including nested interrupts. The performance monitoring unit may also count events that occur while servicing interrupt requests based upon the state of interrupt processing. Events that are known to the performance monitoring unit such as instruction retired, TLB misses, may be counted at the same time using a number of performance monitoring counters in the performance monitoring unit.
摘要翻译：一种用于在数据处理系统的处理器中发生中断时通过中断类型对事件进行限定的方法，装置和计算机指令。可编程性能监控单元（PMU）用于对收集与一种中断类型相关的事件（包括嵌套中断）的硬件计数器进行编程。性能监视单元还可以基于中断处理的状态来计算在服务中断请求时发生的事件。性能监控单元已知的事件，如指令退出，TLB未命中，可以同时使用性能监视单元中的多个性能监视计数器进行计数。

60. 发明授权

US07574587B2 Method and apparatus for autonomically initiating measurement of secondary metrics based on hardware counter values for primary metrics 失效
标题翻译：基于主要度量的硬件计数器值自动启动二次度量测量的方法和装置
公开(公告)号：US07574587B2
公开(公告)日：2009-08-11
申请号：US12124822
申请日：2008-05-21
申请人： Jimmie Earl DeWitt, Jr. , Frank Eliot Levine , Christopher Michael Richardson , Robert John Urquhart
发明人： Jimmie Earl DeWitt, Jr. , Frank Eliot Levine , Christopher Michael Richardson , Robert John Urquhart
IPC分类号： G06F11/16
CPC分类号： G06F9/30181 , G06F11/3409 , G06F11/348 , G06F2201/81 , G06F2201/86 , G06F2201/88
摘要： A method, apparatus, and computer instructions in a data processing system for processing instructions are provided. Instructions are received at a processor in the data processing system. If a selected indicator is associated with the instruction, counting of each event associated with the execution of the instruction is enabled. Functionality may be provided in the performance monitoring application for initiating the measurement of secondary metrics with regard to identified instructions, data addresses, ranges of identified instructions, or ranges of identified data addresses, based on counter values for primary metrics. Thus, for example, when a primary metric counter, or a combination of primary metric counters, meets or exceeds a predetermined threshold value, an interrupt may be generated. In response to receiving the interrupt, counters associated with the measuring of secondary metrics of a range of instructions/data addresses may be initiated.
摘要翻译：提供了用于处理指令的数据处理系统中的方法，装置和计算机指令。在数据处理系统的处理器处接收指令。如果所选择的指示符与指令相关联，则启用与执行指令相关联的每个事件的计数。可以在性能监视应用中提供功能，用于基于主要度量的计数器值来发起关于所识别的指令，数据地址，所识别的指令的范围或所识别的数据地址的范围的次级度量的测量。因此，例如，当主度量计数器或主度量计数器的组合满足或超过预定阈值时，可以产生中断。响应于接收到中断，可以启动与测量一系列指令/数据地址的二次度量有关的计数器。

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