Tag：kernel
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Time：2021-10-27
The highly anticipated windows 11 was officially launched on October 5, but then many bugs were revealed. Just now, amd confirmed that upgrading windows 11 will reduce the performance of AMD ryzen dragon game by 15%. At present, AMD and Microsoft said they would solve the bug by issuing a patch. According to AMD, when […]
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Time：2021-10-25
In previous tweets《SMI interface of STM32 network》《MII and RMII interfaces of STM32 network》, all interfaces of STM32 Ethernet and external PHY are introduced. If some students are not familiar with SMI, MII and RMII interfaces, it is recommended to read the two articles mentioned above, otherwise they may not understand the following. Zone 1:We […]
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Time：2021-10-25
Out of interest in Linux operating system and strong desire for underlying knowledge, this article is sorted out. This paper can also be used as an index to test basic knowledge. In addition, this paper covers all aspects of a system. Without perfect computer system knowledge, network knowledge and operating system knowledge, it is impossible […]
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Time：2021-10-24
Series catalog Preface preparation BIOS boot to real mode GDT and protection mode On virtual memory Load and enter the kernel Display and print Global descriptor table GDT Interrupt processing Virtual memory perfection Implement heap and malloc First kernel thread Multithread switching Lock and multithreading synchronization Enter user status Process implementation system call Simple file […]
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Time：2021-10-24
0 Introduction With the development of Internet technology, the amount of data is becoming larger and larger. We urgently need a large storage and analysis system. Although data storage methods such as NoSQL database and Hadoop file storage can solve this problem, relational database still has its advantages, especially for the processing of structured data. […]
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Time：2021-10-23
Nowadays, the mobile terminal technology stack has become more and more mature and perfect. For the business, most engineers are doing UI display logic, and the back-end controls most of the business logic. What the client does is to get the data from the back-end, display it through settext, and then judge whether the view […]
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Time：2021-10-22
This article will explain to the reader in detail the underlying details of 4K for each read when unordered storage is mentioned in Chapter 3. The appendix in Chapter 3 has explained to the readers that “this reason is that when the operating system reads the disk, according to the principle of data locality, it […]
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Time：2021-10-21
In order to avoid coupling with the host compilation system, many SDKs and software that need to be associated with customers will provide their own tool chain or require the customer’s system to meet some tool chain requirements. The advantages of an independent toolchain are as follows: one Don’t worry about the host operating […]
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Time：2021-10-20
Series articles： First meet docker Docker installation Run process and docker principle Docker common commands Summary of common docker commands Docker actual deployment visualization Docker image explanation Operation process Underlying principle How does docker workDocker is a client server system. The daemon of docker runs on the host and is accessed from the client through […]
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Time：2021-10-17
Recently, many people asked Xiaobian, what is the difference between Linux and Ubuntu, and how should our users choose? To know the difference between Linux and Ubuntu, we must first understand what is Linux and what is Ubuntu Now on this issue, Xiaobian wrote an article today to popularize science Linux Linux is an open […]
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Time：2021-10-17
I have great enthusiasm for research technology, 18 this year. Since junior high school, the seed of the desire to control computers freely has been planted. In senior one, I saw the word programming from the information technology textbook for the first time, and took a small example of drawing quadratic function images written in […]
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Time：2021-10-16
What is Linux? Linux is an open source operating system. Operating system is the software that directly manages system hardware and resources, such as CPU, memory and database. The operating system is located between applications and hardware, connecting all software and physical resources to perform work. Xiaobian, for example, is like a car engine. Although […]
