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Technical Articles

Database

Does the internet run on Linux?

The Internet does not rely on a single operating system, but Linux plays an important role in it. Linux is widely used in servers and network devices and is popular for its stability, security and scalability.

Apr 14, 2025 am 12:03 AM

互联网 Linux

How to optimize the performance of debian readdir

In Debian systems, readdir system calls are used to read directory contents. If its performance is not good, try the following optimization strategy: Simplify the number of directory files: Split large directories into multiple small directories as much as possible, reducing the number of items processed per readdir call. Enable directory content caching: build a cache mechanism, update the cache regularly or when directory content changes, and reduce frequent calls to readdir. Memory caches (such as Memcached or Redis) or local caches (such as files or databases) can be considered. Adopt efficient data structure: If you implement directory traversal by yourself, select more efficient data structures (such as hash tables instead of linear search) to store and access directory information

Apr 13, 2025 am 08:48 AM

linux redis 工具 ai red

NGINX's Key Features: Performance, Scalability, and Security

NGINX improves performance through its event-driven architecture and asynchronous processing capabilities, enhances scalability through modular design and flexible configuration, and improves security through SSL/TLS encryption and request rate limiting.

Apr 13, 2025 am 12:09 AM

安全性能

PHP: A Key Language for Web Development

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

Apr 13, 2025 am 12:08 AM

Java PHP

PostgreSQL performance optimization under Debian

To improve the performance of PostgreSQL database in Debian systems, it is necessary to comprehensively consider hardware, configuration, indexing, query and other aspects. The following strategies can effectively optimize database performance: 1. Hardware resource optimization memory expansion: Adequate memory is crucial to cache data and indexes. High-speed storage: Using SSD SSD drives can significantly improve I/O performance. Multi-core processor: Make full use of multi-core processors to implement parallel query processing. 2. Database parameter tuning shared_buffers: According to the system memory size setting, it is recommended to set it to 25%-40% of system memory. work_mem: Controls the memory of sorting and hashing operations, usually set to 64MB to 256M

Apr 12, 2025 pm 08:18 PM

redis 处理器工具 ai sql语句资源优化 red

Redis, mongodb, memcached difference

The difference between Redis, MongoDB, and Memcached: Data model: Redis is a key-value store, MongoDB is a document-type database, and Memcached is a key-value store. Data persistence: Redis default memory storage, optional persistence; MongoDB default persistence, memory mapped files can be used; Memcached does not persist. Access mode: Redis reads and writes quickly, MongoDB supports query updates, and Memcached only supports key-value pair operations. Scalability: Redis can be horizontally scalable, MongoDB can be sharded replication and extension, and Memcached has limited scalability. Use case: Redis is suitable for cache, counter and other scenarios; M

Apr 12, 2025 am 07:45 AM

redis mongodb 区别社交网络键值对

Yii: Key Features and Advantages Explained

Yii is a high-performance PHP framework that is unique in its componentized architecture, powerful ORM and excellent security. 1. The component-based architecture allows developers to flexibly assemble functions. 2. Powerful ORM simplifies data operation. 3. Built-in multiple security functions to ensure application security.

Apr 12, 2025 am 12:15 AM

Yii框架 PHP框架

What to do if the redis set operation fails

How to resolve Redis SET operation failures: Upgrade memory or optimize the phasing strategy to resolve insufficient key space. Reset the key's survival time or use the SETEX command to create a key with survival time to resolve the issue where the key exists and the EXAT command is set. Split large values or use data structures such as list/hash to solve the problem of value size exceeding the limit. Use transaction or SETNX commands to avoid setting conflicts. Check logs, restart the server, or optimize the configuration to resolve input/output errors.

Apr 10, 2025 pm 07:39 PM

redis 网络问题键值对

How to optimize MySQL performance for high-load applications?

MySQL database performance optimization guide In resource-intensive applications, MySQL database plays a crucial role and is responsible for managing massive transactions. However, as the scale of application expands, database performance bottlenecks often become a constraint. This article will explore a series of effective MySQL performance optimization strategies to ensure that your application remains efficient and responsive under high loads. We will combine actual cases to explain in-depth key technologies such as indexing, query optimization, database design and caching. 1. Database architecture design and optimized database architecture is the cornerstone of MySQL performance optimization. Here are some core principles: Selecting the right data type and selecting the smallest data type that meets the needs can not only save storage space, but also improve data processing speed.

Apr 08, 2025 pm 06:03 PM

mysql python redis ai

Advanced Yii Framework: Mastering Components & Extensions

In the Yii framework, components are reusable objects, and extensions are plugins added through Composer. 1. Components are instantiated through configuration files or code, and use dependency injection containers to improve flexibility and testability. 2. Expand the management through Composer to quickly enhance application functions. Using these tools can improve development efficiency and application performance.

Apr 08, 2025 am 12:17 AM

PHP框架

Building Microservices with C# .NET: A Practical Guide for Architects

C#.NET is a popular choice for building microservices because of its strong ecosystem and rich support. 1) Create RESTfulAPI using ASP.NETCore to process order creation and query. 2) Use gRPC to achieve efficient communication between microservices, define and implement order services. 3) Simplify deployment and management through Docker containerized microservices.

Apr 06, 2025 am 12:08 AM

C# .NET

How to apply Debian Strings in a website

This article discusses how to optimize website performance on Debian systems. "DebianStrings" is not a standard term and may refer to tools or technologies used in Debian systems to improve website performance. The following are some practical tips: 1. It is recommended to use the Pagoda panel to simplify the installation and configuration process for web server and PHP environment configuration. It is recommended to install Nginx1.22.1 as the web server, PHP8.2 as the script interpreter, and MySQL10.7.3-MariaDB as the database system. Be sure to enable the necessary PHP extensions, such as fileinfo, opcache, memcached, red

Apr 02, 2025 am 08:21 AM

mysql redis nginx 工具 red

When using Django and MySQL to process hundreds of thousands to one or two million pieces of data, what kind of cache solution should a 4-core 8G memory server choose?

Using Django and MySQL to process large data volumes When using Django and MySQL databases, if your data volume reaches hundreds of thousands to one or two million...

Apr 01, 2025 pm 11:36 PM

mysql redis 热点数据访问 red

How to efficiently reuse navigation information in Django projects?

Efficient use of navigation information in Django projects Many Django projects read some common information from the database, such as navigation menus. If each page...

Apr 01, 2025 pm 09:39 PM

redis red