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# AMD Server Configuration

This article details configuring MediaWiki for optimal performance on servers utilizing AMD processors. It's geared towards system administrators new to our wiki environment. Understanding these configurations is crucial for maintaining a stable and responsive wiki experience.

Introduction

AMD processors offer a compelling balance of performance and cost, making them a popular choice for MediaWiki servers. However, maximizing their potential requires careful configuration. This guide will cover key aspects of server setup, focusing on CPU, memory, and storage considerations specific to AMD platforms. Before proceeding, ensure you have a working installation of MediaWiki 1.40. Refer to the Installation guide for initial setup instructions. Proper System requirements are essential to a stable wiki.

CPU Considerations

AMD CPUs, particularly those with high core counts, excel at handling the parallel processing demands of MediaWiki. However, simply having more cores isn't enough. Effective configuration involves understanding core affinity and process scheduling.

Here's a breakdown of common AMD server CPU series and their typical characteristics:

CPU Series Core Count (Typical) Clock Speed (Typical) Suitable For
EPYC 7003 Series 64 2.6 GHz - 3.4 GHz High-traffic wikis, large databases
EPYC 7002 Series 32 2.2 GHz - 3.3 GHz Medium to high-traffic wikis
Ryzen Threadripper PRO 16 - 64 3.0 GHz - 4.5 GHz Smaller to medium wikis, development servers

It is crucial to monitor CPU usage regularly. Overloaded CPUs will cause significant slowdowns.

Memory Configuration

MediaWiki's performance is heavily reliant on available RAM. Insufficient memory leads to frequent disk I/O, drastically reducing response times. AMD platforms support both DDR4 and DDR5 memory, depending on the CPU generation.

Here's a guide to recommended memory configurations:

Wiki Size Recommended RAM Notes
Small (Under 10,000 pages) 8 GB - 16 GB Suitable for testing and low-traffic wikis.
Medium (10,000 - 100,000 pages) 32 GB - 64 GB Recommended for most wikis with moderate traffic.
Large (Over 100,000 pages) 128 GB+ Required for high-traffic wikis and complex extensions.

Utilize the PHP memory limit setting in `php.ini` to allocate sufficient memory to PHP processes. This setting must be carefully tuned for optimal performance. Consider using a caching mechanism like Memcached or Redis to reduce database load and memory consumption.

Storage Configuration

Fast storage is critical for MediaWiki. Solid State Drives (SSDs) are highly recommended over traditional Hard Disk Drives (HDDs). NVMe SSDs offer even greater performance.

Here's a comparison of storage options:

Storage Type Read Speed (Approx.) Write Speed (Approx.) Cost (Approx.)
HDD (7200 RPM) 100-200 MB/s 100-150 MB/s Low
SATA SSD 500-550 MB/s 450-520 MB/s Medium
NVMe SSD 3,500-7,000+ MB/s 2,500-5,000+ MB/s High

Configure your file storage (images, thumbnails, etc.) on the fastest available storage. Ensure adequate disk space for growth. Regularly monitor Disk space usage to prevent performance degradation. Utilize the Database caching options for improved performance.

Operating System & Software Stack

Linux distributions such as Ubuntu Server, Debian, or CentOS are commonly used for MediaWiki deployments. Ensure your operating system is up-to-date with the latest security patches.

⚠️ *Note: All benchmark scores are approximate and may vary based on configuration. Server availability subject to stock.* ⚠️

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