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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

US08286134B2 Call stack sampling for a multi-processor system 失效
标题翻译：为多处理器系统调用堆栈采样
公开(公告)号：US08286134B2
公开(公告)日：2012-10-09
申请号：US12173107
申请日：2008-07-15
申请人： Scott Thomas Jones , Frank Eliot Levine
发明人： Scott Thomas Jones , Frank Eliot Levine
IPC分类号： G06F9/44
CPC分类号： G06F11/3612
摘要： A computer implemented method for sampling call stack information. Responsive to identifying a set of interrupts, a determination is made as to whether all processors in a plurality of processors have generated the set of interrupts. A number of addresses are identified for a set of interrupted threads identified by the set of interrupts response to a determination that all of the processors have generated the set of interrupts. A determination is made as to whether the identified address falls within a set of address ranges. Responsive to a determination that the identified address falls within the set of address ranges, a sampler thread is notified to obtain call stack information.
摘要翻译：一种用于对呼叫栈信息进行采样的计算机实现方法。响应于识别一组中断，确定多个处理器中的所有处理器是否已经产生了一组中断。针对由确定所有处理器已经产生了一组中断的确定的一组中断标识的一组中断线程，识别多个地址。确定所识别的地址是否在一组地址范围内。响应于所识别的地址落在地址范围内的确定，通知采样器线程以获得调用堆栈信息。

6. 发明授权

US08271999B2 Compensating for instrumentation overhead using execution environment overhead 失效
标题翻译：使用执行环境开销补偿仪器开销
公开(公告)号：US08271999B2
公开(公告)日：2012-09-18
申请号：US11863085
申请日：2007-09-27
申请人： Scott Thomas Jones , Frank Eliot Levine
发明人： Scott Thomas Jones , Frank Eliot Levine
IPC分类号： G06F3/00 , G06F9/44 , G06F9/46 , G06F13/00
CPC分类号： G06F11/3612
摘要： A computer implemented method, apparatus, and computer program code for profiling an application. Execution of an application is monitored. A set of metrics relating to execution of the application occurring during monitoring execution of the application are collected to form a set of observed metrics. An execution environment overhead occurring with respect to the set of observed events is identified to form an identified execution environment overhead. The set of observed metrics is adjusted using the identified execution environment overhead to form a set of calibrated metrics.
摘要翻译：用于对应用进行分析的计算机实现的方法，装置和计算机程序代码。监视应用程序的执行。收集与监视应用程序执行期间发生的应用程序的执行有关的一组度量，以形成一组观察到的度量。识别相对于观察到的事件集合发生的执行环境开销以形成识别的执行环境开销。使用所识别的执行环境开销来调整所观察的度量集合以形成一组校准的度量。

7. 发明申请

US20100017584A1 Call Stack Sampling for a Multi-Processor System 失效
标题翻译：多处理器系统的呼叫栈采样
公开(公告)号：US20100017584A1
公开(公告)日：2010-01-21
申请号：US12173107
申请日：2008-07-15
申请人： Scott Thomas Jones , Frank Eliot Levine
发明人： Scott Thomas Jones , Frank Eliot Levine
IPC分类号： G06F9/30
CPC分类号： G06F11/3612
摘要： A computer implemented method for sampling call stack information. Responsive to identifying a set of interrupts, a determination is made as to whether all processors in a plurality of processors have generated the set of interrupts. A number of addresses are identified for a set of interrupted threads identified by the set of interrupts response to a determination that all of the processors have generated the set of interrupts. A determination is made as to whether the identified address falls within a set of address ranges. Responsive to a determination that the identified address falls within the set of address ranges, a sampler thread is notified to obtain call stack information.
摘要翻译：一种用于对呼叫栈信息进行采样的计算机实现方法。响应于识别一组中断，确定多个处理器中的所有处理器是否已经产生了一组中断。针对由确定所有处理器已经产生了一组中断的确定的一组中断标识的一组中断线程，识别多个地址。确定所识别的地址是否在一组地址范围内。响应于所确定的地址落在地址范围内的确定，通知采样器线程以获得调用堆栈信息。

8. 发明申请

US20090089800A1 Method and Apparatus for Compensating for Instrumentation Overhead Using Execution Environment Overhead 失效
标题翻译：使用执行环境架空补偿仪表开销的方法和装置
公开(公告)号：US20090089800A1
公开(公告)日：2009-04-02
申请号：US11863085
申请日：2007-09-27
申请人： Scott Thomas Jones , Frank Eliot Levine
发明人： Scott Thomas Jones , Frank Eliot Levine
IPC分类号： G06F9/44
CPC分类号： G06F11/3612
摘要： A computer implemented method, apparatus, and computer program code for profiling an application. Execution of an application is monitored. A set of metrics relating to execution of the application occurring during monitoring execution of the application are collected to form a set of observed metrics. An execution environment overhead occurring with respect to the set of observed events is identified to form an identified execution environment overhead. The set of observed metrics is adjusted using the identified execution environment overhead to form a set of calibrated metrics.
摘要翻译：用于对应用进行分析的计算机实现的方法，装置和计算机程序代码。监视应用程序的执行。收集与监视应用程序执行期间发生的应用程序的执行有关的一组度量，以形成一组观察到的度量。识别相对于观察到的事件集合发生的执行环境开销以形成识别的执行环境开销。使用所识别的执行环境开销来调整所观察的度量集合以形成一组校准的度量。

9. 发明申请

US20090241095A1 Call Stack Sampling for Threads Having Latencies Exceeding a Threshold 失效
标题翻译：对于延迟超过阈值的线程，调用堆栈采样
公开(公告)号：US20090241095A1
公开(公告)日：2009-09-24
申请号：US12051265
申请日：2008-03-19
申请人： Scott Thomas Jones , Frank Eliot Levine
发明人： Scott Thomas Jones , Frank Eliot Levine
IPC分类号： G06F9/44
CPC分类号： G06F11/3419 , G06F11/3476 , G06F2201/81 , G06F2201/86 , G06F2201/865 , G06F2201/88 , G06F2201/885
摘要： A computer implemented method, apparatus, and computer usable program code for sampling call stack information. An accumulated latency time is monitored for a set of threads executing in a data processing system. The call stack information is obtained for the thread in response to a thread in the set of threads having an associated accumulated latency exceeding a threshold.
摘要翻译：计算机实现的方法，装置和用于对呼叫栈信息进行采样的计算机可用程序代码。监视在数据处理系统中执行的一组线程的累积等待时间。响应于具有相关联的累积等待时间超过阈值的线程组中的线程，获得针对线程的调用堆栈信息。

10. 发明申请

US20090113450A1 Adaptive Prevention of Data Loss During Continuous Event Tracing with Limited Buffer Size 有权
标题翻译：在有限缓冲区大小的连续事件跟踪期间自适应防止数据丢失
公开(公告)号：US20090113450A1
公开(公告)日：2009-04-30
申请号：US11923757
申请日：2007-10-25
申请人： Scott Thomas Jones , Frank Eliot Levine , Milena Milenkovic , Enio Manuel Pineda
发明人： Scott Thomas Jones , Frank Eliot Levine , Milena Milenkovic , Enio Manuel Pineda
IPC分类号： G06F3/00
CPC分类号： G06F11/3476 , G06F11/348
摘要： This invention describes how to avoid data loss due to limited buffer size during continuous tracing of high frequency events such as branches. Buffer data loss is adaptively avoided by either temporarily patching an instruction with a jump to itself or by using delay loops with an adaptive number of iterations during exception handling in which the trace event is written to the buffer.
摘要翻译：本发明描述了在诸如分支的高频事件的连续跟踪期间如何避免由于缓冲器大小受限而导致的数据丢失。缓冲区数据丢失通过临时修补跳转自身的指令或者在跟踪事件写入缓冲区的异常处理期间使用具有自适应迭代次数的延迟循环来自适应地避免。

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