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81. 发明授权

US07197586B2 Method and system for recording events of an interrupt using pre-interrupt handler and post-interrupt handler 有权
标题翻译：使用预中断处理程序和后中断处理程序来记录中断事件的方法和系统
公开(公告)号：US07197586B2
公开(公告)日：2007-03-27
申请号：US10757192
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
摘要： A method, apparatus, and computer instructions for providing pre and post handlers to log trace records before entering or after exiting the interrupt handler. A trace record includes a ‘from’ address where the interrupt occurs or where the branch instruction is executed or a ‘to’ address for the branch to case and counts of selected performance monitoring events. A timestamp may be associated with each event. In one embodiment, the pre and post handler is used with trap on branch to log trace records prior to and immediate after taking a branch. In another embodiment, a pre handler is enabled to log trace records that occur prior to executing interrupt service routines. A post handler is enabled to log trace records that occur after the interrupt service routines is executed and prior to returning to normal execution. Resulting low-level performance trace data may be collected by the user at a later time for more structured performance analysis.
摘要翻译：一种方法，装置和计算机指令，用于在进入或退出中断处理程序之后提供前处理程序和后处理程序来记录跟踪记录。跟踪记录包括发生中断的“从”地址或执行分支指令的位置，或者分支的“到”地址到所选择的性能监视事件的大小写和计数。时间戳可能与每个事件相关联。在一个实施例中，前处理程序和后处理程序与分支上的陷阱一起使用，以在分支之前和之后记录跟踪记录。在另一个实施例中，预处理程序能够记录在执行中断服务程序之前发生的跟踪记录。启用后台处理程序来记录在执行中断服务程序之后并在返回到正常执行之前发生的跟踪记录。所得到的低级别性能跟踪数据可以由用户以后收集以进行更结构化的性能分析。

82. 发明授权

US07181599B2 Method and apparatus for autonomic detection of cache “chase tail” conditions and storage of instructions/data in “chase tail” data structure 失效
标题翻译：用于自动检测缓存“追尾”条件的方法和装置以及“追尾”数据结构中指令/数据的存储
公开(公告)号：US07181599B2
公开(公告)日：2007-02-20
申请号：US10757256
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： G06F11/30
CPC分类号： G06F12/126
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 system. If a selected indicator is associated with the instruction, counting of each event associated with the execution of the instruction is enabled. The performance indicators and counter values may be used as a mechanism for identifying cache hits and cache misses. Performance counters are incremented each time the instructions of routines of interest are executed and each time the instructions must be reloaded into the cache. From the values of these counters the cache hit-miss ratio may be determined. When the cache hit-miss ratio becomes less than a predetermined threshold, i.e. a greater number of cache misses than cache hits, the present invention may determine that a problem condition has occurred and initiate “chase tail” operations for avoiding overwriting of entries in the cache.
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。系统中的处理器接收到指令。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。性能指标和计数器值可以用作识别高速缓存命中和高速缓存未命中的机制。每次执行关注程序的指令并且每次必须将指令重新加载到高速缓存中时，性能计数器都会递增。从这些计数器的值可以确定高速缓存命中错失率。当高速缓存命中错失率变得小于预定阈值时，即比高速缓存命中更高数量的高速缓存未命中时，本发明可以确定已经出现问题状况并启动“追尾”操作，以避免在缓存。

83. 发明授权

US07062684B2 Enabling tracing of a repeat instruction 失效
标题翻译：启用跟踪重复指令
公开(公告)号：US07062684B2
公开(公告)日：2006-06-13
申请号：US10325078
申请日：2002-12-19
申请人： Jimmie Earl DeWitt, Jr. , Frank Eliot Levine , Robert John Urquhart
发明人： Jimmie Earl DeWitt, Jr. , Frank Eliot Levine , Robert John Urquhart
IPC分类号： G06F11/00
CPC分类号： G06F9/325 , G06F11/3636
摘要： A method and system for enabling tracing of a repeat instruction are provided. A repeat instruction is executed within a processor. In response to detecting a repeat instruction flag set during a last execution of the repeat instruction, an interrupt is initiated within the processor. The processor enables reading a count of executions for the repeat instruction from a storage unit within the processor by a trace program or external hardware during the interrupt.
摘要翻译：提供了一种用于启用跟踪重复指令的方法和系统。在处理器内执行重复指令。响应于检测在重复指令的最后执行期间设置的重复指令标志，在处理器内启动中断。处理器可以在中断期间通过跟踪程序或外部硬件从处理器内的存储单元读取重复指令的执行次数。

84. 发明授权

US6118940A Method and apparatus for benchmarking byte code sequences 失效
标题翻译：用于基准字节码序列的方法和装置
公开(公告)号：US6118940A
公开(公告)日：2000-09-12
申请号：US978513
申请日：1997-11-25
申请人： William Preston Alexander, III , Robert Francis Berry , Riaz Hussain , Paul Jerome Kilpatrick , Robert John Urquhart
发明人： William Preston Alexander, III , Robert Francis Berry , Riaz Hussain , Paul Jerome Kilpatrick , Robert John Urquhart
IPC分类号： G06F11/34 , G06F9/45
CPC分类号： G06F11/3428 , G06F11/3476
摘要： Method and apparatus for creating benchmark programs for the analysis of java virtual machine implementations are implemented. Java applications and applets are compiled into an intermediate code referred to as byte code. The Java byte code forms the machine code for the Java Virtual Machine. The Java Virtual Machine running on top of a hardware platform translates the byte code into native machine code for execution on the hardware platform on which the Java Virtual Machine is running. The performance of a Java Virtual Machine is improved by the use of a so-called "just in time" (JIT) compiler that translates commonly occurring sequences of bytes codes in the native instruction sequences which are then stored for later execution. Critical to the performance of the JIT is the ability of the JIT to optimally compile for the most commonly occurring sequences of byte codes. The method and apparatus for creating benchmark programs provides a means for performance measurements with respect to such sequences.
摘要翻译：实现用于创建用于分析java虚拟机实现的基准程序的方法和装置。 Java应用程序和小程序被编译成称为字节码的中间代码。 Java字节代码形成Java虚拟机的机器代码。运行在硬件平台上的Java虚拟机将字节码转换为本地机器代码，以便在运行Java虚拟机的硬件平台上执行。通过使用所谓的“即时”（JIT）编译器来改进Java虚拟机的性能，该编译器将本地指令序列中常见的字节码序列翻译成随后的存储以备以后执行。对JIT的性能至关重要的是JIT对最常发生的字节码序列进行最佳编译的能力。用于创建基准程序的方法和装置提供了相对于这种序列的性能测量的手段。

85. 发明授权

US6002872A Method and apparatus for structured profiling of data processing systems and applications 失效
标题翻译：用于数据处理系统和应用程序的结构化分析的方法和装置
公开(公告)号：US6002872A
公开(公告)日：1999-12-14
申请号：US52329
申请日：1998-03-31
申请人： William Preston Alexander, III , Robert Francis Berry , Donald L. Mulvey , Robert John Urquhart
发明人： William Preston Alexander, III , Robert Francis Berry , Donald L. Mulvey , Robert John Urquhart
IPC分类号： G06F11/28 , G06F11/34 , G06F11/36 , G06F7/00 , G06F9/40
CPC分类号： G06F11/3612 , G06F11/3466 , Y10S707/99933
摘要： A method for monitoring performance of a program. A periodically occurring event is detected and a stack associated with the program is identified in response to a detection of the periodically occurring event, which may be a timer interrupt. The stack is examined to identify each routine (and specific invocation point, or offset) that is currently executing in association with the program. Each routine (and offset) is represented as a node in a tree structure.
摘要翻译：一种用于监视程序性能的方法。检测到周期性发生的事件，并且响应于可以是定时器中断的周期性发生的事件的检测来识别与程序相关联的堆栈。检查堆栈以识别与程序相关联的当前执行的每个例程（以及特定的调用点或偏移量）。每个例程（和偏移量）都表示为树结构中的一个节点。

86. 发明授权

US06263488B1 System and method for enabling software monitoring in a computer system 失效
标题翻译：用于在计算机系统中启用软件监视的系统和方法
公开(公告)号：US06263488B1
公开(公告)日：2001-07-17
申请号：US08400779
申请日：1995-03-08
申请人： Michael Richard Fortin , Robert John Urquhart
发明人： Michael Richard Fortin , Robert John Urquhart
IPC分类号： G06F942
CPC分类号： G06F11/3466 , G06F11/3419 , G06F2201/86 , G06F2201/865 , G06F2201/88
摘要： A method and system for enabling the monitoring of software executing on a computer system. The system inserts monitor instrumentation without recompiling the source code of the program. Encapsulation of the target routine does not disrupt the relative addressing of the target routine since an instruction is simply replaced. No instructions are added to the target routine. User specified entry and exit routines are used to collect selected performance and system state data. Instrumentation code is provided to link the target routines to the user specified entry and exit routines. The standard link interface allows the entry and exit routines to be written in high level languages.
摘要翻译：一种用于使得能够监视在计算机系统上执行的软件的方法和系统。系统插入监视器仪器，而不重新编译程序的源代码。封装目标程序不会中断目标程序的相对寻址，因为简单地替换了指令。没有指令被添加到目标程序。用户指定的入口和出口例程用于收集所选的性能和系统状态数据。提供仪器代码将目标程序链接到用户指定的入口和出口程序。标准链接界面允许以高级语言编写进入和退出例程。

87. 发明授权

US5870095A Z buffer initialize and update method for pixel block 失效
标题翻译： Z缓冲区初始化和像素块更新方法
公开(公告)号：US5870095A
公开(公告)日：1999-02-09
申请号：US109572
申请日：1993-08-19
申请人： Virgil Anthony Albaugh , Robert John Urquhart
发明人： Virgil Anthony Albaugh , Robert John Urquhart
IPC分类号： G06F3/153 , G06T15/40 , G06F15/00
CPC分类号： G06T15/405
摘要： A method is provided for initializing and updating a group of pixels contained on a display in blocks. A group of pixels is considered as a block and has a status word associated therewith. This status word maintains a running total of the maximum z value of any pixel contained within a group, or block of pixels. In this manner, once a block of pixels is rendered on to the display screen a comparison can be made between the current pixels being displayed and a group of pixels which are to be displayed. The minimum z value of the group of pixels to be displayed is compared with the maximum z value for the group of pixels currently being displayed. If the current maximum z value, as stored in the status word, is less than the minimum z value for the pixels to be displayed, then the group of pixels currently being displayed will all "win" when compared to the pixels in the group to be displayed. Thus, a full block bypass of the group of pixels to be displayed is implemented, thereby saving considerable time and overhead when compared to conventional z buffer systems that compare z values for each individual pixel.
摘要翻译：提供了一种用于初始化和更新包含在块中的显示器上的一组像素的方法。一组像素被认为是块并且具有与其相关联的状态字。该状态字维持包含在组或像素块内的任何像素的最大z值的运行总和。以这种方式，一旦将像素块呈现在显示屏幕上，就可以在正在显示的当前像素和要显示的一组像素之间进行比较。将要显示的像素组的最小z值与当前正在显示的像素组的最大z值进行比较。如果存储在状态字中的当前最大z值小于要显示的像素的最小z值，则与当前组中的像素相比，当前正在显示的像素组将全部“赢” 被显示。因此，与要比较每个像素的z值的常规z缓冲系统相比，实现了要显示的像素组的完全块旁路，从而节省了相当多的时间和开销。

88. 发明授权

US07239980B2 Method and apparatus for adaptive tracing with different processor frequencies 失效
标题翻译：具有不同处理器频率的自适应跟踪的方法和装置
公开(公告)号：US07239980B2
公开(公告)日：2007-07-03
申请号：US11214564
申请日：2005-08-30
申请人： Jimmie Earl DeWitt, Jr. , Frank E. Levine , Enio Manuel Pineda , Robert John Urquhart
发明人： Jimmie Earl DeWitt, Jr. , Frank E. Levine , Enio Manuel Pineda , Robert John Urquhart
IPC分类号： G06F15/00
CPC分类号： G06F11/3636
摘要： A method, apparatus, and computer usable program code for managing trace records. A set of traces is generated for a set of processors. A trace is generated in the set of traces for each processor within the set of processors. A record of the frequency change is stored in the set of traces in response to a frequency change in a processor within the set of processors. Trace records are combined in the set of traces using the record of the frequency change to determine a correct order for the records.
摘要翻译：用于管理跟踪记录的方法，设备和计算机可用程序代码。为一组处理器生成一组跟踪。在该组处理器内的每个处理器的一组跟踪中生成跟踪。响应于处理器集合内的处理器中的频率变化，频率变化的记录被存储在该组轨迹中。跟踪记录使用频率变化的记录组合在一组轨迹中，以确定记录的正确顺序。

89. 发明授权

US6026236A System and method for enabling software monitoring in a computer system 失效
标题翻译：用于在计算机系统中启用软件监视的系统和方法
公开(公告)号：US6026236A
公开(公告)日：2000-02-15
申请号：US868386
申请日：1997-06-03
申请人： Michael Richard Fortin , Robert John Urquhart
发明人： Michael Richard Fortin , Robert John Urquhart
IPC分类号： G06F11/34 , G06F11/32
CPC分类号： G06F11/3466
摘要： A method and system for enabling the monitoring of software executing on a computer system. The system inserts monitor instrumentation without recompiling the source code of the program. Encapsulation of the target routine does not disrupt the relative addressing of the target routine since an instruction is simply replaced. No instructions are added to the target routine. User specified entry and exit routines are used to collect selected performance and system state data. Instrumentation code is provided to link the target routines to the user specified entry and exit routines. The standard link interface allows the entry and exit routines to be written in high level languages.
摘要翻译：一种用于使得能够监视在计算机系统上执行的软件的方法和系统。系统插入监视器仪器，而不重新编译程序的源代码。封装目标程序不会中断目标程序的相对寻址，因为简单地替换了指令。没有指令被添加到目标程序。用户指定的入口和出口例程用于收集所选的性能和系统状态数据。提供仪器代码将目标程序链接到用户指定的入口和出口程序。标准链接界面允许以高级语言编写进入和退出例程。

90. 发明授权

US5896538A System and method for multi-phased performance profiling of single-processor and multi-processor systems 失效
标题翻译：单处理器和多处理器系统的多阶段性能分析的系统和方法
公开(公告)号：US5896538A
公开(公告)日：1999-04-20
申请号：US753570
申请日：1996-11-26
申请人： Geoffrey Owen Blandy , Maher Afif Saba , Robert John Urquhart
发明人： Geoffrey Owen Blandy , Maher Afif Saba , Robert John Urquhart
IPC分类号： G06F11/34 , G06F9/45
CPC分类号： G06F11/3409 , G06F11/3466 , G06F2201/81 , G06F2201/865 , G06F2201/88
摘要： The present invention is directed to a system and method for monitoring system performance by using a multi-phase approach. The first phase, referred to as the burst counting phase, utilizes a set of counters to identify calls and returns which are heavily used. In the second phase, referred to as the instrumentation phase, the performance characteristics of the "hot spots" are monitored through the use of hardware counters. In a symmetrical multi-processor embodiment, the performance profiler is active on all processors at the same time. Frequently executed code paths are identified in a manner that is minimally-intrusive to the system as a whole, and uses relatively little storage. The user may specify a threshold count, after which hardware monitoring begins, and the user may specify the type of hardware performance data collected. After both phases of the performance monitor are run, the data can be presented to the user in a variety of ways.
摘要翻译：本发明涉及一种通过使用多相方法监视系统性能的系统和方法。被称为突发计数阶段的第一阶段利用一组计数器来识别大量使用的呼叫和返回。在第二阶段，称为仪器仪表阶段，通过使用硬件计数器监控“热点”的性能特征。在对称的多处理器实施例中，性能分析器在所有处理器上同时处于活动状态。经常执行的代码路径以对整个系统进行最小侵入的方式进行标识，并且使用相对较少的存储。用户可以指定阈值计数，之后硬件监视开始，用户可以指定收集的硬件性能数据的类型。在执行性能监视器的两个阶段之后，数据可以以各种方式呈现给用户。

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