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VIRTIO network equipment delay positioning method, processing unit and VIRTIO network equipment

A technology of network equipment and front-end network, which is applied in the field of cloud computing, can solve problems such as steps and delays that are difficult to locate and delay, and achieve the effect of convenient performance evaluation and online operation and maintenance

Pending Publication Date: 2022-07-29
深圳云豹智能有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of this application is to provide a VIRTIO network device delay positioning method, processing unit, VIRTIO network device, computer-readable storage medium and processor, to solve the delay in the VIRTIO network device in the prior art, and it is difficult to locate the occurrence The problem with delayed steps

Method used

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  • VIRTIO network equipment delay positioning method, processing unit and VIRTIO network equipment
  • VIRTIO network equipment delay positioning method, processing unit and VIRTIO network equipment
  • VIRTIO network equipment delay positioning method, processing unit and VIRTIO network equipment

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Embodiment

[0099] This embodiment relates to a specific packet receiving process of VIRTIO network equipment, such as Figure 4 shown, including the following steps:

[0100] Step 0: The driver obtains the current system time and writes the time value to the time synchronization module of the VIRTIO backend network device to keep the system software time synchronized with the device hardware time.

[0101] Step 1: The driver prepares the received network packet buffer in advance. These packet buffers are usually divided into 2 parts, one part of 12 bytes stores the header content of the VIRITO network device; part of 1526 bytes stores the data packets except the header content. Part; if the MERGAEGBLE feature of VIRTIO is successfully negotiated, the header content and the parts other than the header content in the packet will be put together, and a 4096-byte buffer will be allocated. For the receive direction, these packet buffers will hold the contents of received network packets. Fo...

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Abstract

The invention provides a VIRTIO network equipment delay positioning method, a processing unit and VIRTIO network equipment. The method comprises the following steps: acquiring current system time driven by a VIRITO front-end network, and writing the current system time into a time synchronization module; a timestamp is added to the head or the tail of a network data packet to be sent to form an updated network data packet, and the updated network data packet is stored in a VIRITO front-end network driver; acquiring a first moment when the updated network data packet is sent to a descriptor table reading module, a second moment when a used ring table updating module, a third moment when a message interruption module and a fourth moment when an Ethernet data packet interface module; and according to the difference values between the first moment, the second moment, the third moment and the fourth moment and the timestamps, positioning the delayed module in the VIRTIO network equipment. According to the scheme, accurate positioning of the delay of the VIRTIO network equipment is realized.

Description

technical field [0001] The present application relates to the field of cloud computing, and in particular, to a VIRTIO network device delay positioning method, a processing unit, and a VIRTIO network device. Background technique [0002] In the cloud computing virtualization technology, in order to allow multiple GuestOSs (GuestOperationSystem, guest operating system) to run on the same hardware independently of the HostOS (HostOperationSystem, host operating system), it is usually necessary to add a virtualization layer to achieve this. The virtualization layer is called VMM (VirtualMachineMonitor, virtual machine monitor, running on the host operating system, software used to support the running of multiple virtual machines). QEMU (Machine Emulator and Virtualizer, machine emulation and virtualization software) as a VMM provides a fully virtualized environment. In a fully virtualized environment, the guest operating system does not perceive itself as a virtual machine, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L43/106H04L49/90
CPCH04L43/106H04L49/9094
Inventor 王建东马强史寅昭
Owner 深圳云豹智能有限公司
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