公开(公告)号：US09910700B2

公开(公告)日：2018-03-06

申请号：US14836331

申请日：2015-08-26

Applicant: NetApp, Inc.

Inventor： Kent Prosch ,  Matthew Weber ,  Arindam Banerjee ,  Ben McDavitt

IPC: G06F9/455 ,  G06F9/48 ,  G06F9/50 ,  G06F13/24

CPC classification number: G06F9/4812 ,  G06F9/4856 ,  G06F9/5088 ,  G06F13/24

Abstract: A method for migration of operations between CPU cores, the method includes: processing, by a source core, one or more tasks and one or more interrupt service routines; accessing a mapping corresponding to a task of the one or more tasks and an interrupt service routine of the one or more interrupt service routines; identifying, based on the mapping, a target core that corresponds to the task and the interrupt service routine; blocking the task from being processed by the source core in response to identifying the target core; in response to identifying the target core, disabling an interrupt corresponding to the interrupt service routine; in response to identifying the target core, assigning the task and the interrupt to the target core; after assigning the interrupt to the target core, enabling the interrupt; and after assigning the task to the target core, processing the task by the target core.

公开(公告)号：US11182202B2

公开(公告)日：2021-11-23

申请号：US16653079

申请日：2019-10-15

Applicant: NetApp, Inc.

Inventor： Kent Prosch ,  Matthew Weber ,  Arindam Banerjee ,  Ben McDavitt

IPC: G06F9/46 ,  G06F9/48 ,  G06F9/50 ,  G06F15/16

Abstract: Methods, non-transitory machine-readable media, and computing devices for transitioning tasks and interrupt service routines are provided. An example method includes processing, by a plurality of processor cores of a storage controller, tasks and interrupt service routines. A performance statistic is determined corresponding to the plurality of processor cores. Based on detecting that the performance statistic passes a threshold, a number of the plurality of processor cores that are assigned to the tasks and the interrupt service routines are reduced.

公开(公告)号：US20200042347A1

公开(公告)日：2020-02-06

申请号：US16653079

申请日：2019-10-15

Applicant: NetApp, Inc.

Inventor： Kent Prosch ,  Matthew Weber ,  Arindam Banerjee ,  Ben McDavitt

IPC: G06F9/48 ,  G06F9/50 ,  G06F15/16

Abstract: Methods, non-transitory machine-readable media, and computing devices for transitioning tasks and interrupt service routines are provided. An example method includes processing, by a plurality of processor cores of a storage controller, tasks and interrupt service routines. A performance statistic is determined corresponding to the plurality of processor cores. Based on detecting that the performance statistic passes a threshold, a number of the plurality of processor cores that are assigned to the tasks and the interrupt service routines are reduced.

公开(公告)号：US10459759B2

公开(公告)日：2019-10-29

申请号：US15890481

申请日：2018-02-07

Applicant: NetApp, Inc.

Inventor： Kent Prosch ,  Matthew Weber ,  Arindam Banerjee ,  Ben McDavitt

IPC: G06F9/46 ,  G06F9/48 ,  G06F9/50 ,  G06F15/16

Abstract: Methods, non-transitory machine-readable media, and computing devices for transitioning tasks and interrupt service routines are provided. An example method includes processing, by a plurality of processor cores of a storage controller, tasks and interrupt service routines. A performance statistic is determined corresponding to the plurality of processor cores. Based on detecting that the performance statistic passes a threshold, a number of the plurality of processor cores that are assigned to the tasks and the interrupt service routines are reduced.

公开(公告)号：US20220075649A1

公开(公告)日：2022-03-10

申请号：US17530681

申请日：2021-11-19

Applicant: NetApp, Inc.

Inventor： Kent Prosch ,  Matthew Weber ,  Arindam Banerjee ,  Ben McDavitt

IPC: G06F9/48 ,  G06F9/50 ,  G06F15/16

Abstract: Methods, non-transitory machine-readable media, and computing devices for transitioning tasks and interrupt service routines are provided. An example method includes processing, by a plurality of processor cores of a storage controller, tasks and interrupt service routines. A performance statistic is determined corresponding to the plurality of processor cores. Based on detecting that the performance statistic passes a threshold, a number of the plurality of processor cores that are assigned to the tasks and the interrupt service routines are reduced.

公开(公告)号：US20170090999A1

公开(公告)日：2017-03-30

申请号：US14866293

申请日：2015-09-25

Applicant: NetApp, Inc.

Inventor： Matthew Weber ,  Douglas A. Ochsner ,  Kam Pak ,  Arindam Banerjee ,  Ben McDavitt ,  Donald R. Humlicek

IPC: G06F9/52

CPC classification number: G06F9/528 ,  G06F9/5033 ,  G06F9/5088 ,  G06F2209/5022

Abstract: Selective multiprocessing in a non-preemptive task scheduling environment is provided. Tasks of an application are grouped based on similar functionality and/or access to common code or data structures. The grouped tasks constitute a task core group, and each task core group may be mapped to a core in a multi-core processing system. A mutual exclusion approach reduces overhead imposed on the storage controller and eliminates the risk of concurrent access. A core guard routine is used when a particular application task in a first task core group requires access to a section of code or data structure associated with a different task core group. The application task is temporarily assigned to the second task core group. The application task executes the portion of code seeking access to the section of code or data structure. Once complete, the application task is reassigned back to its original task core group.

公开(公告)号：US20180165120A1

公开(公告)日：2018-06-14

申请号：US15890481

申请日：2018-02-07

Applicant: NetApp, Inc.

Inventor： Kent Prosch ,  Matthew Weber ,  Arindam Banerjee ,  Ben McDavitt

IPC: G06F9/48 ,  G06F15/16 ,  G06F9/50

CPC classification number: G06F9/4856 ,  G06F9/4812 ,  G06F9/505 ,  G06F9/5061 ,  G06F9/5083 ,  G06F15/16 ,  G06F2209/482

Abstract: Methods, non-transitory machine-readable media, and computing devices for transitioning tasks and interrupt service routines are provided. An example method includes processing, by a plurality of processor cores of a storage controller, tasks and interrupt service routines. A performance statistic is determined corresponding to the plurality of processor cores. Based on detecting that the performance statistic passes a threshold, a number of the plurality of processor cores that are assigned to the tasks and the interrupt service routines are reduced.

公开(公告)号：US20170060624A1

公开(公告)日：2017-03-02

申请号：US14836331

申请日：2015-08-26

Applicant: NetApp, Inc.

Inventor： Kent Prosch ,  Matthew Weber ,  Arindam Banerjee ,  Ben McDavitt

IPC: G06F9/48 ,  G06F13/24 ,  G06F9/50

CPC classification number: G06F9/4812 ,  G06F9/4856 ,  G06F9/5088 ,  G06F13/24

Abstract: A method for migration of operations between CPU cores, the method includes: processing, by a source core, one or more tasks and one or more interrupt service routines; accessing a mapping corresponding to a task of the one or more tasks and an interrupt service routine of the one or more interrupt service routines; identifying, based on the mapping, a target core that corresponds to the task and the interrupt service routine; blocking the task from being processed by the source core in response to identifying the target core; in response to identifying the target core, disabling an interrupt corresponding to the interrupt service routine; in response to identifying the target core, assigning the task and the interrupt to the target core; after assigning the interrupt to the target core, enabling the interrupt; and after assigning the task to the target core, processing the task by the target core.

Abstract translation: 一种用于在CPU核心之间迁移操作的方法，所述方法包括：由源核心处理一个或多个任务和一个或多个中断服务例程; 访问对应于所述一个或多个任务的任务的映射和所述一个或多个中断服务例程的中断服务程序; 基于所述映射来识别与所述任务和所述中断服务程序相对应的目标核心; 响应于识别目标核心，阻止任务被源核心处理; 响应于识别目标核心，禁用与中断服务程序相对应的中断; 响应于识别目标核心，将任务和中断分配给目标核心; 在将中断分配给目标内核后，启用中断; 并且在将任务分配给目标核心之后，由目标核心处理该任务。