System and Method for Boosting Up Performance of NVMe-TCP Transport

Patent metadata

Field	Value
Publication number	US-2022345538-A1
Application number	US-202117239102-A
Country	US
Kind code	A1
Filing date	Apr 23, 2021
Priority date	Apr 23, 2021
Publication date	Oct 27, 2022
Grant date	—

Abstract

A method, computer program product, and computer system for using, by a computing device, free central processing unit (CPU) cycles for processing Non-Volatile Memory express Over Fiber (NVMeoF)/Transmission Control Protocol (TCP) sockets. Using the free CPU cycles for processing the NVMeoF/TCP sockets may include exposing a character device with a callback that iterates over the NVMeoF/TCP sockets for processing.

First claim

1 . A computer-implemented method comprising:
using, by a computing device, free central processing unit (CPU) cycles for processing Non-Volatile Memory express Over Fiber (NVMeoF)/Transmission Control Protocol (TCP) sockets; wherein using the free CPU cycles for processing the NVMeoF/TCP sockets includes exposing a character device with a callback that iterates over the NVMeoF/TCP sockets for processing; and adding the NVMeoF/TCP sockets to a waiting list, wherein each of the NVMeoF/TCP sockets holds an atomic state and each of the NVMeoF/TCP sockets is configured to be processed by a storage management application thread or a kernel thread (kthread).

2 . The computer-implemented method of claim 1 wherein the callback includes an Input Output Control (IOCTL) callback.

3 . (canceled)

4 . The computer-implemented method of claim 2 wherein a software interrupt adds the NVMeoF/TCP sockets to the waiting list to process the NVMeoF/TCP sockets upon the IOCTL callback being called by a storage application thread.

5 . The computer-implemented method of claim 4 wherein the software interrupt is processed by a frontend CPU core.

6 . The computer-implemented method of claim 2 wherein the kthread is woken up by a software interrupt based upon, at least in part, adding the NVMeoF/TCP sockets to the waiting list.

7 . (canceled)

8 . A computer program product residing on a non-transitory computer readable storage medium having a plurality of instructions stored thereon which, when executed across one or more processors, causes at least a portion of the one or more processors to perform operations comprising:
using free central processing unit (CPU) cycles for processing Non-Volatile Memory express Over Fiber (NVMeoF)/Transmission Control Protocol (TCP) sockets; wherein using the free CPU cycles for processing the NVMeoF/TCP sockets includes exposing a character device with a callback that iterates over the NVMeoF/TCP sockets for processing; and adding the NVMeoF/TCP sockets to a waiting list, wherein each of the NVMeoF/TCP sockets holds an atomic state and each of the NVMeoF/TCP sockets is configured to be processed by a storage management application thread or a kernel thread (kthread).

9 . The computer program product of claim 8 wherein the callback includes an Input Output Control (IOCTL) callback.

10 . (canceled)

11 . The computer program product of claim 9 wherein a software interrupt adds the NVMeoF/TCP sockets to the waiting list to process the NVMeoF/TCP sockets upon the IOCTL callback being called by a storage application thread.

12 . The computer program product of claim 11 wherein the software interrupt is processed by a frontend CPU core.

13 . The computer program product of claim 9 wherein the kthread is woken up by a software interrupt based upon, at least in part, adding the NVMeoF/TCP sockets to the waiting list.

14 . (canceled)

15 . A computing system including one or more processors and one or more memories configured to perform operations comprising:
using free central processing unit (CPU) cycles for processing Non-Volatile Memory express Over Fiber (NVMeoF)/Transmission Control Protocol (TCP) sockets; wherein using the free CPU cycles for processing the NVMeoF/TCP sockets includes exposing a character device with a callback that iterates over the NVMeoF/TCP sockets for processing, wherein the callback includes an Input Output Control (IOCTL) callback; and adding the NVMeoF/TCP sockets to a waiting list, wherein a software interrupt adds the NVMeoF/TCP sockets to the waiting list to process the NVMeoF/TCP sockets upon the IOCTL callback being called by a storage application thread.

16 . (canceled)

17 . (canceled)

18 . The computing system of claim 15 wherein the software interrupt is processed by a frontend CPU core.

19 . The computing system of claim 15 wherein a kernel thread (kthread) is woken up by the software interrupt based upon, at least in part, adding the NVMeoF/TCP sockets to the waiting list.

20 . The computing system of claim 19 wherein each of the NVMeoF/TCP sockets holds an atomic state.

Assignees

• Emc Ip Holding Co Llc

Inventors

• Zinger Eldad
• Ravich Leonid
• Anner Ran
• GRUPI Elad

Classifications

• G06F9/4812

  by interrupt, e.g. masked · CPC title

• H04L67/1072

  Discovery involving ranked list compilation of candidate peers · CPC title

• H04L67/133 Primary

  Protocols for remote procedure calls [RPC] · CPC title

• G06F9/4806

  Task transfer initiation or dispatching · CPC title

• H04L67/025

  for remote control or remote monitoring of applications · CPC title