公开(公告)号：US09614892B2

公开(公告)日：2017-04-04

申请号：US14558313

申请日：2014-12-02

Applicant: Rishi Bidarkar ,  Banit Agrawal ,  Lawrence Andrew Spracklen ,  Hari Sivaraman

Inventor： Rishi Bidarkar ,  Banit Agrawal ,  Lawrence Andrew Spracklen ,  Hari Sivaraman

IPC: H04L9/08 ,  G06F3/14 ,  G06F17/24 ,  G09G5/02 ,  H04N21/258 ,  H04N21/658 ,  H04N21/442 ,  G09G5/34 ,  H04L29/08

CPC classification number: H04L67/025 ,  G06F3/14 ,  G06F17/246 ,  G09G5/02 ,  G09G5/34 ,  G09G2330/12 ,  G09G2340/02 ,  G09G2340/04 ,  G09G2340/0428 ,  G09G2350/00 ,  G09G2360/08 ,  G09G2370/022 ,  H04N21/25825 ,  H04N21/25833 ,  H04N21/4424 ,  H04N21/6582

Abstract: This disclosure describes a performance-monitoring system that computes a display performance metric of a remote application. During operation, the system performs a sequence of input events, and receives information which updates a graphical user interface (GUI). The GUI displays a sequence of frames rendered by a remote application in response to the input events. The system then samples colors at a number of pivot points on the GUI, and matches the a respective frame to a previously performed input event based on the sampled colors. The system subsequently computes a display performance metric for the remote application based on the frames and the corresponding input events.

公开(公告)号：US08902248B1

公开(公告)日：2014-12-02

申请号：US13432331

申请日：2012-03-28

Applicant: Rishi Bidarkar ,  Banit Agrawal ,  Lawrence Andrew Spracklen ,  Hari Sivaraman

Inventor： Rishi Bidarkar ,  Banit Agrawal ,  Lawrence Andrew Spracklen ,  Hari Sivaraman

IPC: G09G5/00 ,  G06F15/16

CPC classification number: H04L67/025 ,  G06F3/14 ,  G06F17/246 ,  G09G5/02 ,  G09G5/34 ,  G09G2330/12 ,  G09G2340/02 ,  G09G2340/04 ,  G09G2340/0428 ,  G09G2350/00 ,  G09G2360/08 ,  G09G2370/022 ,  H04N21/25825 ,  H04N21/25833 ,  H04N21/4424 ,  H04N21/6582

Abstract: This disclosure describes a performance-monitoring system that computes a display performance metric of a remote application. During operation, the system performs a sequence of input events, and receives information which updates a graphical user interface (GUI). The GUI displays a sequence of frames rendered by a remote application in response to the input events. The system then samples colors at a number of pivot points on the GUI, and matches the a respective frame to a previously performed input event based on the sampled colors. The system subsequently computes a display performance metric for the remote application based on the frames and the corresponding input events.

Abstract translation: 本公开描述了计算远程应用的显示性能度量的性能监视系统。 在操作期间，系统执行一系列输入事件，并接收更新图形用户界面（GUI）的信息。 GUI显示响应于输入事件的由远程应用呈现的帧序列。 然后，系统在GUI上的多个枢轴点处采样颜色，并且基于采样的颜色将相应的帧与先前执行的输入事件相匹配。 系统随后基于帧和相应的输入事件计算远程应用的显示性能度量。

公开(公告)号：US20130332778A1

公开(公告)日：2013-12-12

申请号：US13491444

申请日：2012-06-07

Applicant: Lawrence Andrew Spracklen

Inventor： Lawrence Andrew Spracklen

IPC: G06F11/34

CPC classification number: G06F9/45533 ,  G06F9/4881 ,  G06F9/52 ,  G06F11/3024 ,  G06F11/3409 ,  G06F11/3433 ,  G06F11/348 ,  G06F2201/81 ,  G06F2201/815 ,  G06F2201/86 ,  G06F2201/865 ,  G06F2201/88 ,  G06F2201/885

Abstract: The current application is directed to architected hardware support within computer processors for detecting and monitoring various types of potential performance imbalances with respect to simultaneously executing hardware threads in simultaneous multi-threading (“SMT”) processors and SMT-processor cores. The architected hardware support may include various types of performance-imbalance-monitoring registers that accumulate indications of performance imbalances and that can be used, by performance-monitoring software and by human analysts to detect performance-degrading conflicts between simultaneously executing hardware threads. Such conflicts can be ameliorated by changing the scheduling of virtual machines, tasks, and other computational entities, by redesigning and re-implementing all or portions of performance-limited and performance-degrading applications, by altering resource-allocation strategies, and by other means. In addition, performance imbalance detection and monitoring can be used to provide accurate, computational-throughput-based accounting in cloud-computing environments.

Abstract translation: 目前的应用针对计算机处理器内的架构硬件支持，用于检测和监测同时执行同时多线程（“SMT”）处理器和SMT处理器内核中的硬件线程的各种类型的潜在性能不平衡。 架构化的硬件支持可能包括各种类型的性能不平衡监控寄存器，累积性能不平衡的指示，并且可以通过性能监视软件和人类分析人员来检测同时执行硬件线程之间的性能降级冲突。 通过改变虚拟机，任务和其他计算实体的调度，可以通过重新设计和重新实施性能受限和性能降级的应用程序的全部或部分，通过改变资源分配策略和其他方式来改善这种冲突 。 此外，性能不平衡检测和监控可用于在云计算环境中提供准确的基于计算吞吐量的计费。

公开(公告)号：US09674562B1

公开(公告)日：2017-06-06

申请号：US13079972

申请日：2011-04-05

Applicant: Lawrence Andrew Spracklen ,  Banit Agrawal ,  Rishi Bidarkar

Inventor： Lawrence Andrew Spracklen ,  Banit Agrawal ,  Rishi Bidarkar

IPC: H04N7/173 ,  H04N21/242

CPC classification number: H04N21/242 ,  H04N21/233 ,  H04N21/234 ,  H04N21/4307 ,  H04N21/4622 ,  H04N21/8358

Abstract: Methods, systems, and computer programs for measuring quality of multimedia delivery to a client are presented. A method includes operations for embedding video markers in a video stream of a multimedia stream, and embedding audio markers in an audio stream of the multimedia stream. The video stream and the audio stream are then transmitted separately to the client. Further, video markers received at the client are extracted from the transmitted video stream, and audio markers received at the client are extracted from the transmitted audio stream. A measure of the audio-video synchronization quality is obtained by determining a quantifiable time difference between the video stream and the audio stream received at the client, where the quantifiable time difference is calculated based on the extracted video markers and the extracted audio markers.

公开(公告)号：US08788079B2

公开(公告)日：2014-07-22

申请号：US12942393

申请日：2010-11-09

Applicant: Lawrence Andrew Spracklen

Inventor： Lawrence Andrew Spracklen

IPC: G06F11/30

CPC classification number: H04L43/08 ,  H04L7/043 ,  H04N17/004 ,  H04R27/00 ,  H04R2227/003 ,  H04R2227/005

Abstract: Methods, systems, and computer programs for monitoring quality of audio delivered over a communications channel are presented. One method includes an operation for defining timestamps. The timestamps are associated with a measure of time while delivering audio to a client computer, where each timestamp includes a plurality of timestamp bits. Further, the method includes an operation for modulating an audio signal with pseudo noise (PN) codes when a timestamp bit has a first logical value, and modulating the audio signal with a negative of the PN codes when the timestamp bit has a second logical value. After transmitting the modulated audio signal to the client computer, the timestamp bits are extracted from a received modulated audio signal to obtain received timestamps. The quality of the audio is assessed based on the received timestamps, and the quality of the audio is stored in computer memory.

Abstract translation: 提出了用于监测通过通信信道传送的音频质量的方法，系统和计算机程序。 一种方法包括用于定义时间戳的操作。 时间戳与将音频传送到客户端计算机的时间量度相关联，其中每个时间戳包括多个时间戳位。 此外，该方法包括当时间戳位具有第一逻辑值时用伪噪声（PN）码调制音频信号的操作，以及当时间戳位具有第二逻辑值时，用PN码的负值调制音频信号 。 在将调制的音频信号发送到客户端计算机之后，从接收到的调制音频信号中提取时间戳位以获得接收的时间戳。 基于所接收的时间戳来评估音频的质量，音频的质量被存储在计算机存储器中。