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    Detecting latency anomalies from pipeline components in cloud-based systems
    1.
    发明授权
    Detecting latency anomalies from pipeline components in cloud-based systems 有权

    公开(公告)号：US11418852B2

    公开(公告)日：2022-08-16

    申请号：US16886192

    申请日：2020-05-28

    Applicant: NVIDIA Corporation

    Inventor： Alan Larson ,  Bipin Todur

    IPC: H04N21/647 ,  H04N21/235 ,  H04N21/239 ,  H04N21/8547

    Abstract: A method, computer readable medium, and system are disclosed for monitoring a pipeline to detect anomalies such as unusual latency associated with a particular stage. Each stage of the pipeline is configured to update metadata associated with content being processed by inserting a time stamp into the metadata when processing of the content is completed by the stage. The server device can collect the metadata from the last stage of the pipeline and analyze the metadata in order to generate metrics for the pipeline, including a residual latency and/or a gain for each stage of the pipeline. In an embodiment, the content is a frame of video to be displayed on a client device after being rendered by a server device, such as through a streaming service (e.g., a video game streaming service). The server device can adjust the pipeline based on the metrics to improve performance.

    Measuring and detecting idle processing periods and identifying root causes thereof in cloud-based, streaming applications
    2.
    发明授权
    Measuring and detecting idle processing periods and identifying root causes thereof in cloud-based, streaming applications 有权

    公开(公告)号：US11498007B2

    公开(公告)日：2022-11-15

    申请号：US17124967

    申请日：2020-12-17

    Applicant: NVIDIA Corporation

    Inventor： Alan Daniel Larson ,  Bipin Todur

    IPC: G06F9/455 ,  H04L65/60 ,  A63F13/86 ,  A63F13/35 ,  H04L67/10

    Abstract: A technique for analyzing data in order to detect issues within a cloud-based service is disclosed. Host computing devices in a data center launch virtual machines, where at least some virtual machines run a pipelined stack for a streaming service. Virtual machines in the host computing devices generate event data including timestamps. Metadata generated by the pipelined stack during each streaming session is analyzed to identify deadzones in the corresponding host computing device, and the event data is processed to identify potential root causes of the corresponding deadzones. The event data can be generated by the virtual machine hosting the streaming service or by different virtual machines on the same host computing device. A distribution of events of each event type relative to the identified deadzones is determined and an operation of the host computing device can be adjusted based on the distribution.

    METHOD AND SYSTEM FOR LOW LATENCY HIGH FRAME RATE STREAMING
    5.
    发明申请
    METHOD AND SYSTEM FOR LOW LATENCY HIGH FRAME RATE STREAMING 审中-公开

    公开(公告)号：US20190141374A1

    公开(公告)日：2019-05-09

    申请号：US16179857

    申请日：2018-11-02

    Applicant: NVIDIA CORPORATION

    Inventor： Alexander McAuley ,  Haitao Xue ,  Sam Azar ,  Bipin Todur ,  Alan Larson ,  Reza Marandian Hagh

    IPC: H04N21/2343 ,  H04N21/258 ,  H04N21/238 ,  H04N21/6373 ,  H04N21/462 ,  H04N21/2662 ,  H04N19/172

    Abstract: Embodiments of the present invention provide a low-latency approach for local or remote application streaming that reaches high FPS targets without overloading the available streaming bandwidth, for example, by limiting the bit rate to the same value that is used by traditional 60 FPS streaming solutions. A client device and server device cooperate to actively monitor and control a video stream to maintain an acceptable balance between latency and video quality by adjusting the frequency or resolution when necessary to improve the streaming experience. When the server device captures and transmits frames at a higher rate, the software stack executing on the client device is able to display frames with less delay, even on a display device limited to 60 Hz, thereby achieving additional latency reduction.

    MEASURING AND DETECTING IDLE PROCESSING PERIODS AND IDENTIFYING ROOT CAUSES THEREOF IN CLOUD-BASED, STREAMING APPLICATIONS
    6.
    发明申请
    MEASURING AND DETECTING IDLE PROCESSING PERIODS AND IDENTIFYING ROOT CAUSES THEREOF IN CLOUD-BASED, STREAMING APPLICATIONS 有权

    公开(公告)号：US20220193558A1

    公开(公告)日：2022-06-23

    申请号：US17124967

    申请日：2020-12-17

    Applicant: NVIDIA Corporation

    Inventor： Alan Daniel Larson ,  Bipin Todur

    IPC: A63F13/86 ,  G06F9/455 ,  H04L29/06 ,  A63F13/35

    Abstract: A technique for analyzing data in order to detect issues within a cloud-based service is disclosed. Host computing devices in a data center launch virtual machines, where at least some virtual machines run a pipelined stack for a streaming service. Virtual machines in the host computing devices generate event data including timestamps. Metadata generated by the pipelined stack during each streaming session is analyzed to identify deadzones in the corresponding host computing device, and the event data is processed to identify potential root causes of the corresponding deadzones. The event data can be generated by the virtual machine hosting the streaming service or by different virtual machines on the same host computing device. A distribution of events of each event type relative to the identified deadzones is determined and an operation of the host computing device can be adjusted based on the distribution.

    DETECTING LATENCY ANOMALIES FROM PIPELINE COMPONENTS IN CLOUD-BASED SYSTEMS
    7.
    发明申请
    DETECTING LATENCY ANOMALIES FROM PIPELINE COMPONENTS IN CLOUD-BASED SYSTEMS 有权

    公开(公告)号：US20210377623A1

    公开(公告)日：2021-12-02

    申请号：US16886192

    申请日：2020-05-28

    Applicant: NVIDIA Corporation

    Inventor： Alan Larson ,  Bipin Todur

    IPC: H04N21/647 ,  H04N21/8547 ,  H04N21/239 ,  H04N21/235

    Abstract: A method, computer readable medium, and system are disclosed for monitoring a pipeline to detect anomalies such as unusual latency associated with a particular stage. Each stage of the pipeline is configured to update metadata associated with content being processed by inserting a time stamp into the metadata when processing of the content is completed by the stage. The server device can collect the metadata from the last stage of the pipeline and analyze the metadata in order to generate metrics for the pipeline, including a residual latency and/or a gain for each stage of the pipeline. In an embodiment, the content is a frame of video to be displayed on a client device after being rendered by a server device, such as through a streaming service (e.g., a video game streaming service). The server device can adjust the pipeline based on the metrics to improve performance.

    DETECTING LATENCY ANOMALIES FROM PIPELINE COMPONENTS IN CLOUD-BASED SYSTEMS
    9.
    发明申请
    DETECTING LATENCY ANOMALIES FROM PIPELINE COMPONENTS IN CLOUD-BASED SYSTEMS 有权

    公开(公告)号：US20220377432A1

    公开(公告)日：2022-11-24

    申请号：US17813695

    申请日：2022-07-20

    Applicant: NVIDIA Corporation

    Inventor： Alan Larson ,  Bipin Todur

    IPC: H04N21/647 ,  H04N21/235 ,  H04N21/239 ,  H04N21/8547

    Abstract: A method, computer readable medium, and system are disclosed for monitoring a pipeline to detect anomalies such as unusual latency associated with a particular stage. Each stage of the pipeline is configured to update metadata associated with content being processed by inserting a time stamp into the metadata when processing of the content is completed by the stage. The server device can collect the metadata from the last stage of the pipeline and analyze the metadata in order to generate metrics for the pipeline, including a residual latency and/or a gain for each stage of the pipeline. In an embodiment, the content is a frame of video to be displayed on a client device after being rendered by a server device, such as through a streaming service (e.g., a video game streaming service). The server device can adjust the pipeline based on the metrics to improve performance.

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