source:Industry News release time:2022-10-18 Article author:yu Popular:pcb
It depends on how to define "PCB", "existence" and "memory". Simply speaking, PCB must only be in memory. There are only two kinds of things that the processor can handle, memory and IO. When the kernel modifies PCB, it must be in the register. Strictly speaking, only part of the PCB is in the register, and it is not the PCB itself, but a copy. (I'm not sure about this one.) Unused memory can be temporarily replaced into the file system. Is this "not in" memory? (PCB, which has a key impact on schedule, should not be replaced?)
The PCBs of each process are stored in the kernel space shared by all processes. The operating system manages the process, that is, the PCBs of all processes are managed in the kernel space through a linked list. If a process is to be created, such a 4G virtual memory is actually allocated, and its own PCBs are added to the two-way linked list in the shared kernel space.
The PCB (Process Control Block) process control block describes the basic information and running state of the process. The creation and destruction of the process are both operations on the PCB. The specific contents of the PCB are as follows
Read recommendations:
Six-layer Immersion Gold Board (BGA)
Computer card board (four layers)
Six-layer Immersion Gold Board (BGA)
How to choose the right PCB factory when proofing the circuit board
Popular recommended products
Single copper base PCB
2021-04-27Single-sided double-layer AL base PCB
2021-04-27Laminate copper-based PCB after 4L (sample)
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-05-27Six-layer Immersion Gold Board (BGA)
2021-05-27High frequency PCB
2021-04-27Network communication board (sixth floor)
2021-04-29Display board (six layers)
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-05-27High frequency PCB
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-05-24Six-layer Immersion Gold Board (BGA)
2021-05-27Six-layer Immersion Gold Board (BGA)
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-05-24Aluminum substrate (double-sided)
2021-04-27High frequency PCB
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-04-27Mobile phone template (six layers)
2021-04-27High frequency PCB
2021-04-27Computer card board (four layers)
2021-04-25Silver oil perforated plate (double-sided)
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-04-27Six-layer Immersion Gold Board (BGA)
2021-04-26SMT stickers
2021-05-27Six-layer Immersion Gold Board (BGA)
2021-04-26Six-layer Immersion Gold Board (BGA)
2021-04-26DIP plugin
2021-05-27Mobile phone board
2021-05-27DIP plugin
2021-05-27Mobile phone board
2021-04-27SMT stickers
2021-05-27Six-layer Immersion Gold Board (BGA)
2021-04-26Six-layer Immersion Gold Board (BGA)
2021-04-26Related Information
The relationship between PCB safety distance and voltage
2024-04-22SMT surface mount processing.Hybrid circuit board PCB
2024-04-15PCB enterprises should pay attention to SMT matters.Electronic components PCB
2024-04-03PCB - the core building block of electronic products.Automotive Electronics PCB
2024-03-25PCB - the bridge and link of the electronic world
2024-03-18How to define high-frequency and high-precision circuit boards.Industrial Electronics PCB
2024-03-11USB PCB interface layout and wiring requirements
2024-01-22Electrolytic capacitor PCB.Steps for using PCB pins
2024-01-15Automotive ElectronicWhat aspects should be considered when processing and manufacturing PCB boards?
2024-01-08Electrolytic capaciWhat is the difference between a gold-plated circuit board and a gold-plated one?
2023-12-25When grinding PCB boards, attention should be paid to.Oscillator (belonging to crystal) PCB
2023-12-18Industrial Electronics PCB!What precautions should be taken when copying and grinding PCB boards
2023-12-11Do you know who is more suitable for LED direct display, regarding the difference between PCB board
2023-12-05Aluminum electrolytic capacitor PCB.What are the standards for selecting PCB boards
2023-11-27Surface Mount Technology (SMT) Phase PCB
2023-11-20Oscillator (belonging to crystal) PCB.The main functions of PCB board
2023-11-13What is the difference between RO filter and PCB filter
2023-11-06Method for determining blind hole PCB board
2023-11-01Electronic Manufacturing Services PCB!What are the effects of PCB board color on performance?
2023-10-23Introduction to the Manufacturing Steps and Requirements of PCBA Test Stand
2023-10-16PCB version maturity stage.AOI circuit board price
2023-09-25How to maintain a PCB circuit board
2023-09-19Development Trend of Printed Circuit Board.Zener diode PCB Vendor
2023-09-14Common problems and cause analysis of PCB circuit board sampling.Zener diode PCB price
2023-09-08What are the issues that need to be understood in PCB circuit board design?IGBT module PCB factory
2023-09-08How to reduce the risk of bending and deformation in PCB circuit board production?Inverter PCB Produ
2023-08-16What are the three main factors that constitute welding defects in PCB circuit boards?Multilayer PCB
2023-08-16The structure of a glass teapot.LCD Module PCB factory
2023-08-11Glass teapot.Inverter PCB Processing
2023-08-11PCB online debugging
2023-08-08
CopyRight © 2007-2024Shenzhen Weienchen Technology Co., Ltd.
粤ICP备2021061255号
Address:
1205, Floor 12, Building 3, Chuangyi Office Building, No. 110, Ziheng West Road, Jinsha Community, Kengzi Street, Pingshan District, Shenzhen, Guangdong, China
Tel:
+86-755-29662580
Email:
sales@victoriapcb.com
PCB
PCBA
Service
Process
Tel: +86-755-29662580
Email: sales@victoriapcb.com
中
current position:
