CPU scheduling algorithm
2.1 Turnaround Time? Turnaround time = Completion time − Arrival time that is, the time from request to completion of each process. 2.2 First come,...
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Tag: The operating system
Summary of key points and difficulties in operating system interview
February 4, 2024
by Mrs. Ashley Johnson
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For the operating system, according to the interview key points and some reference on the network, the operating system interview knowledge points summary and learning.
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Use VBS scripts to automate GUI installation
February 4, 2024
by Craig Jensen-Middleton
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Some time ago, the blogger wrote a note about the nic driver. Some friends left messages related to the installation of dependency problems. It just...
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Operating system concurrency semaphores
February 4, 2024
by 李雅玲
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0x01 Semaphore Definition: In computer science, a semaphore is a variable or abstract data type used to control multithreading access to a common resource, avoiding...
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ARM64+ Raspberry PI 4B +JLINK simulator experimental environment construction guide
February 4, 2024
by Cheryl Flores
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J-link emulator needs to be purchased. Please log on the official website of SEGGER to check the agent information in China. Students, teachers and individual...
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How to troubleshoot server mining when CPU usage is full
February 4, 2024
by Tanya Krishnamurthy
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The content of the blog involves the basic investigation measures of mining and two simple means of protection Demo, too hard people run not far,...
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Update Windows 7 to Windows 10
February 4, 2024
by Ross Brown-Anderson
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Reinstalling the system from Win 10 to Win 7, detailed steps and explanation. For more than a month, I have had to turn off the...
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Understanding spin locks and Priority Inversion in iOS
February 4, 2024
by Kismat Kant
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Priority inversion Can be explained more clearly in The Resources section, "The Thing about Priority Inversion." Thread A is working at A lower priority, let's...
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Qemu + xv6 WSL2 – Ubuntu16.04 configuration
February 4, 2024
by Susan Day
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No blow no black, WSL is YYDS, cloud CentOs8 made a long time, all kinds of source code compilation, as WSL with Ubuntu16.04 half an...
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Decoupling optimal posture of a complex system
February 4, 2024
by Stephen Godfrey-Curtis
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A complex system decoupling best posture 】 【 system split reform practice at http://click.aliyun.com/m/9071/
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What level are you on?
February 4, 2024
by Alison Perez
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Roughly speaking, programmer's daily work can be divided into three layers: system layer, middleware layer and application layer. Let's go from the bottom to the...
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C10K problem
February 4, 2024
by Tia Moore
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With the popularity of the Internet, the user population of applications grows exponentially, and server performance problems arise at this time. The original server was...
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SQLite architecture
February 4, 2024
by Suzanne Patel
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The interface is composed of SQLite C APIS, which are externally connected to SQLite through JDBC, etc., and are finally operated by calling these C...
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Contactless intelligent services reshape the front desk scene with “subtraction”
February 4, 2024
by Andrew Forsyth
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Introduction: In order to better solve enterprises' demands for front desk work efficiency and service experience, Alibaba Enterprise Intelligence Business Division, in collaboration with Alibaba...
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OS Up Close: Mmap gives you what you want fast!
February 4, 2024
by Rachael Cole
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I/O issues are generally not a concern of most people, because most development is doing "business", that is, computing nodes, usually encountered I/O issues, that...
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ReactOS: Windows-based open source operating system
February 4, 2024
by Manjari Dhingra
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ReactOS is a free, open source new operating system designed to be based on Windows much as Linux is based on Unix. ReactOS looks like...
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Dennis Ritchie: How do you become the best programmer in the world?
February 4, 2024
by Edward Copeland
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If you want to read more technical articles, please pay attention to NetEase yunxin blog. Learn about NetEase Yunxin, a communication and video cloud service...
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ECS O&M: Is the operating system abnormal? Diagnostic logs to help!
February 3, 2024
by Julia Stephenson
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Improper operating system configuration or program overload can cause the ECS system kernel to crash, which can cause problems such as ramming machine, abnormal restart,...
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Jiao is the most hilarious photo of 2018.
February 3, 2024
by 葉惠如
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Jiao is the most hilarious photo of 2018.
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Process management for operating systems
February 3, 2024
by Ojas Shan
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Processes are the basic unit of resource allocation. Process Control Block (PCB) is a data structure in the core of the operating system, which mainly...
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Kafka Implementation Principles Note (1)
February 3, 2024
by Lisa Davis
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Recently I wanted to know how distributed message system is composed, so I spent some time studying the implementation principle of Kafka. Write it down...
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AI power wisdom | tencent visual summit to review urban development
February 3, 2024
by Elizabeth Crawford
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In 2008, IBM proposed the concept of smart cities. A smart city is a city that makes full use of new technologies and their inspiration...
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What is CPU virtualization technology? What are the advantages
February 3, 2024
by Billy Wright-Brown
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Virtualization is very different from multitasking and hyper-threading. Multitasking refers to multiple programs running in parallel in an operating system, while in virtualization technology, you...
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Message Digest Algorithm MD5
February 3, 2024
by Joanna Edwards
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MessageDigestAlgorithmMD5 (fifth edition) message digest algorithm is widely used in computer security field a hash function, and to provide message integrity protection. The file number...
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IOS Performance Optimization
February 3, 2024
by Kay Waters
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The Allocation panel shows which objects are "created and still in memory" and which are the most expensive. Level 1 memory warning Received Use this...
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Millions of developers explained: iOS performance optimization
February 3, 2024
by Thomas Smith
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The main causes of performance problems are the same, different reasons, but it boils down to memory usage, code efficiency, proper policy logic, code quality,...
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Introduction to Socket and I/O multiplexing
February 2, 2024
by Dr. Nicholas Gonzalez
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Nowadays, the Internet is very popular. Every day on the subway, there are many people doing many things with their mobile phones, such as reading...
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What are the optimizations for concurrent programming locks
February 2, 2024
by Alexandra Owens
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Synchronized performance was a concern prior to JDK 1.6, but since 1.6, JVM teams have done a lot of optimization for synchronized, making it comparable...
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Understanding the JVM part 5: The Java Memory Model and threads
February 2, 2024
by Megan Miles
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The Java Memory Model (JMM) is a Memory Model defined by the JVM to mask differences in Memory access between hardware and operating systems. Main...
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Process knowledge points, only this one
February 2, 2024
by Casey Bowater-Parkes
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About your progress. Why did you hang up? The process hangs, which is a familiar problem. After learning this, you will have some idea of...
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