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1. 发明授权

US06925424B2 Method, apparatus and computer program product for efficient per thread performance information 失效
标题翻译：方法，设备和计算机程序产品，用于高效的每线程性能信息
公开(公告)号：US06925424B2
公开(公告)日：2005-08-02
申请号：US10687247
申请日：2003-10-16
申请人： Scott Thomas Jones , Frank Eliot Levine , Luc Rene Smolders , Robert John Urquhart
发明人： Scott Thomas Jones , Frank Eliot Levine , Luc Rene Smolders , Robert John Urquhart
IPC分类号： G06F7/00 , G06F9/00 , G06F9/30 , G06F9/38 , G06F9/46 , G06F11/30 , G06F15/00 , G06F17/40
CPC分类号： G06F9/30101 , G06F9/3851 , G06F9/461 , G06F11/3409 , G06F11/3466 , G06F2201/86 , G06F2201/88 , G06F2201/885
摘要： A value in a counter on a processor is incremented for occurrences of a monitored event, providing a measured value for the event. The value of the counter register for a first thread is saved responsive to a switch from the first thread to a second thread. The value is saved in an accumulator in system memory. Then, responsive to a switch back to the first thread, the value for the first thread is restored from the accumulator. In this way, a counter may be read, and its value, for the first thread, for example, remains consistent despite any intervening thread switches. Since the counter register may be read directly, in the user state, this provides a faster and more consistent way to update performance counts.
摘要翻译：处理器中的计数器中的值将增加以监视事件的发生，为事件提供测量值。响应于从第一线程到第二线程的切换来保存第一线程的计数器寄存器的值。该值保存在系统内存中的累加器中。然后，响应于切换回第一个线程，第一个线程的值从累加器恢复。以这种方式，可以读取计数器，并且对于第一线程，其值例如保持一致，尽管任何中间线程切换。由于可以直接读取计数器寄存器，所以在用户状态下，这样可以提供更快，更一致的方式来更新性能计数。

2. 发明授权

US07640539B2 Instruction profiling using multiple metrics 失效
标题翻译：使用多个指标进行指令分析
公开(公告)号：US07640539B2
公开(公告)日：2009-12-29
申请号：US11104257
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 , G06F11/00
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. Responsive to a determination that a counter in a plurality of counters has generated an interrupt, the interrupt is rerouted to an interrupt handler, wherein the interrupt handler generates trace records comprising trace information corresponding to the interrupt. The mechanism of the present invention then generates profiles for the trace records, wherein the profiles differentiate the trace records based on the metric type associated with each trace record.
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。响应于确定多个计数器中的计数器已经产生中断，中断被重新路由到中断处理程序，其中中断处理程序产生包括对应于该中断的跟踪信息的跟踪记录。然后，本发明的机制生成跟踪记录的简档，其中简档基于与每个跟踪记录相关联的度量类型区分跟踪记录。

3. 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。

4. 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。

5. 发明授权

US08381037B2 Method and system for autonomic execution path selection in an application 有权
标题翻译：应用程序中自主执行路径选择的方法和系统
公开(公告)号：US08381037B2
公开(公告)日：2013-02-19
申请号：US10682385
申请日：2003-10-09
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： G06F11/00
CPC分类号： G06F11/3466 , G06F11/3409 , G06F11/348 , G06F2201/81 , G06F2201/86 , G06F2201/865 , G06F2201/88
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 control an execution-path selection within the software application.
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，计数的事件可以用于自主地控制软件应用程序内的执行路径选择。

6. 发明授权

US08266595B2 Removal of asynchronous events in complex application performance analysis 失效
标题翻译：在复杂的应用程序性能分析中删除异步事件
公开(公告)号：US08266595B2
公开(公告)日：2012-09-11
申请号：US10777909
申请日：2004-02-12
申请人： William Preston Alexander, III , Robert Tod Dimpsey , Frank Eliot Levine , Robert John Urquhart
发明人： William Preston Alexander, III , Robert Tod Dimpsey , Frank Eliot Levine , Robert John Urquhart
IPC分类号： G06F9/44
CPC分类号： G06F8/443
摘要： A method and apparatus for identifying a minimum call tree data structure from a plurality of call tree data structures are provided. With the apparatus and method, call tree data structures are generated for two or more executions of a build of a computer program. The apparatus and method perform a “tree-minimization” operation in which the two or more call trees generated during runs of the computer program are walked and only those nodes that are present in each of the tree data structures are maintained in a minimized tree data structure. In addition, the minimum values for these common nodes are maintained in the minimized tree data structure. In this way, asynchronous events are removed from the minimum tree data structure and analysis may focus on those areas of the computer program that are consistent between runs of the computer program.
摘要翻译：提供了一种用于从多个呼叫树数据结构中识别最小呼叫树数据结构的方法和装置。利用该装置和方法，生成用于构建计算机程序的两个或多个执行的调用树数据结构。该装置和方法执行“树最小化”操作，其中在计算机程序运行期间生成的两个或更多个调用树被移动，并且仅存在于每个树数据结构中的那些节点保持在最小化的树数据中结构体。此外，这些公共节点的最小值保持在最小化的树数据结构中。以这种方式，从最小树数据结构中去除异步事件，并且分析可以集中在计算机程序的运行之间一致的计算机程序的那些区域。

7. 发明申请

US20120151465A1 Autonomic Method and Apparatus for Hardware Assist for Patching Code 失效
标题翻译：用于修补代码的硬件辅助自动方法和装置
公开(公告)号：US20120151465A1
公开(公告)日：2012-06-14
申请号：US13347876
申请日：2012-01-11
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： G06F9/44
CPC分类号： G06F9/30181 , G06F9/30094 , G06F9/328
摘要： Hardware assist to autonomically patch code. The present invention provides hardware microcode to a new type of metadata to selectively identify instructions to be patched for specific performance optimization functions. The present invention also provides a new flag in the machine status register (MSR) to enable or disable a performance monitoring application or process to perform code-patching functions. If the code patching function is enabled, the application or process may patch code at run time by associating the metadata with the selected instructions. The metadata includes pointers pointing to the patch code block code. The program code may be patched autonomically without modifying original code.
摘要翻译：硬件辅助自动修补代码。本发明向新类型的元数据提供硬件微代码，以选择性地识别要修补的特定性能优化功能的指令。本发明还提供了机器状态寄存器（MSR）中的新标志，以启用或禁用性能监视应用程序或进程来执行代码补丁功能。如果启用代码补丁功能，应用程序或进程可以通过将元数据与所选指令相关联来在运行时修补代码。元数据包括指向补丁代码块代码的指针。程序代码可以自动修补而不修改原始代码。

8. 发明授权

US08135915B2 Method and apparatus for hardware assistance for prefetching a pointer to a data structure identified by a prefetch indicator 失效
标题翻译：用于将指针预取到由预取指示符标识的数据结构的硬件辅助的方法和装置
公开(公告)号：US08135915B2
公开(公告)日：2012-03-13
申请号：US10806871
申请日：2004-03-22
申请人： Robert Tod Dimpsey , Frank Eliot Levine , Robert John Urquhart
发明人： Robert Tod Dimpsey , Frank Eliot Levine , Robert John Urquhart
IPC分类号： G06F12/00
CPC分类号： G06F9/383 , G06F9/30181 , G06F9/3802 , G06F9/3836 , G06F9/384 , G06F9/3857 , G06F11/3676 , G06F12/0862 , G06F2212/6028
摘要： A method, apparatus, and computer instructions for providing hardware assistance to prefetch data during execution of code by a process or in the data processing system. In response to loading an instruction in the code into a cache, a determination is made by a processor unit as to whether a prefetch indicator is associated with the instruction. In response to the prefetch indicator being associated with the instruction, a pointer to a data structure identified by the prefetch indicator is selectively prefetched into the cache in the processor.
摘要翻译：一种用于在由处理或数据处理系统执行代码期间提供硬件辅助以预取数据的方法，装置和计算机指令。响应于将代码中的指令加载到高速缓存中，由处理器单元确定预取指示符是否与指令相关联。响应于预取指示符与指令相关联，指向由预取指示符标识的数据结构的指针被选择性地预取到处理器中的高速缓存中。

9. 发明申请

US20110106994A1 METHOD AND APPARATUS FOR QUALIFYING COLLECTION OF PERFORMANCE MONITORING EVENTS BY TYPES OF INTERRUPT WHEN INTERRUPT OCCURS 有权
标题翻译：用于通过中断故障时中断类型进行性能监视事件的收集的方法和装置
公开(公告)号：US20110106994A1
公开(公告)日：2011-05-05
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
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。

10. 发明授权

US07620777B2 Method and apparatus for prefetching data from a data structure 失效
标题翻译：从数据结构预取数据的方法和装置
公开(公告)号：US07620777B2
公开(公告)日：2009-11-17
申请号：US12431389
申请日：2009-04-28
申请人： Robert Tod Dimpsey , Frank Eliot Levine , Robert John Urquhart
发明人： Robert Tod Dimpsey , Frank Eliot Levine , Robert John Urquhart
IPC分类号： G06F12/00
CPC分类号： G06F9/3802 , G06F9/30181 , G06F9/383 , G06F12/0862 , G06F2212/6028
摘要： A method, apparatus, and computer instructions for providing hardware assistance to prefetch data during execution of code by a process or in the data processing system. In response to loading of an instruction in the code into a cache, a determination is made, by the processor unit, as to whether metadata for a prefetch is present for the instruction. In response to metadata being present for the instruction, selectively prefetching data, from within a data structure using the metadata, into the cache in a processor.
摘要翻译：一种用于在由处理或数据处理系统执行代码期间提供硬件辅助以预取数据的方法，装置和计算机指令。响应于将代码中的指令加载到高速缓存中，由处理器单元确定是否存在用于指令的预取的元数据。响应于针对该指令存在的元数据，使用元数据从数据结构内选择性地将数据预取到处理器中的高速缓存中。

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