Redis Common Commands
1. IntroductionIn modern application development, fast data reading and writing as well as efficient storage are key to ensuring system performance. Redis, as an open-source in-memory data storage sys···
How to Implement Locking Mechanisms to Ensure Multithreaded Safety
Locking mechanisms are crucial in multithreaded programming because they ensure data consistency and integrity. By using these mechanisms, developers can build robust systems that safely handle concur···
A Deep Dive into the Comparison Between Sleep and Wait
In this article, we analyze the differences between sleep and wait. sleep is used to pause the current thread for a specified period while retaining the lock, commonly used to control execution timing···
How to Implement Distributed Locks Using Redis
In a multi-threaded environment, it is essential to ensure that a code block can only be accessed by one thread at a time. Today, distributed architectures are popular within companies, so how do we e···
Solving the Issue of new Thread().Start Causing High Concurrency and 100% CPU Usage
Many of us are familiar with the thread queue ThreadPool.QueueUserWorkItem. It queues a method for execution and specifies the data object that the method uses. This method executes when a thread pool···
Knowledge about CPU Cache
No matter what kind of code you write, it will eventually be executed by the CPU. Therefore, if you want to write high-performance code, the techniques mentioned in this article are definitely worth s···
Programming Paradigms in Rust(Part 2)
Threads and Smart PointersNow, let's return to the unresolved issue mentioned earlier: I want to share a read-only piece of data, such as a large array, across multiple threads. I can't clone ···
Programming Paradigms in Rust(Part 1)
This article aims to explore some challenges in programming through the lens of Rust's language design, particularly its important programming paradigms, as this approach may offer deeper insights···
Timing Attacks
Alternative String ComparisonIn Java's Play Framework, there is a piece of code used to verify the validity of data in cookies (sessions), which includes signature validation, as shown below:boole···
Principles of System Architecture
This article discusses several principles of system architecture that are generally applicable to relatively complex businesses. If you are dealing with simple applications with low traffic, you may d···
One Size Fits All: Using Only POST for REST APIs
When I connect to my colleague's interface, all the interfaces he defined are post requests. The reason is that post is safer for https. I am used to using restful APIs. If only post requests are ···
ETCD memory issues
Why Use ETCDLet’s start by discussing why we use ETCD, particularly in the context of our API gateway, Easegress (source code).Easegress is an API gateway product developed and open-sourced by us. Un···
Talking about TIME_WAIT from an experience
To provide some context, EaseProbe is a lightweight, standalone tool for health-checking services. It supports HTTP, TCP, shell, SSH, TLS, hosts, and various middleware checks. It can directly send no···
Linux Memory Paging Management
Memory is the primary storage of a computer. It allocates process space for storing data during process execution. This article will delve into the details of memory management, particularly the conce···
Quantitative Analysis of Memory Usage When Redis Experiences Sudden Memory Surges
Recently, I encountered a case where a Redis instance experienced a sudden memory surge, reaching a maximum used_memory of 78.9G, while the instance's maxmemory configuration was only 16G. This ul···
Calling SQLite Database in C#
In C#, storing and retrieving data through the SQLite database is a common task. This article will introduce how to use SQLite in C# and provide corresponding example code.SQLite is a lightweight, emb···