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Automated server configuration article

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# CPU Selection for MediaWiki Servers

This article details the crucial considerations when selecting a Central Processing Unit (CPU) for a server running [[MediaWiki]] 1.40. A properly chosen CPU is paramount for performance, scalability, and overall user experience. This guide is geared towards system administrators and those responsible for managing MediaWiki infrastructure.

== Understanding MediaWiki's CPU Usage ==

[[MediaWiki]] is a PHP-based application that relies heavily on CPU for several key processes:

* **PHP Execution:** Parsing PHP code, executing extensions, and handling dynamic content.
* **Database Queries:** Processing queries sent to the [[MySQL]] or [[MariaDB]] database. CPU performs calculations and data manipulation.
* **Parser Functions:** Complex parsing tasks, including template expansion, wikitext rendering, and category management.
* **Caching:** While [[caches]] reduce database load, cache invalidation and updates still require CPU cycles.
* **Search Indexing:** Building and maintaining the [[search]] index, particularly with extensions like [[ElasticSearch]], is CPU intensive.

Therefore, a server with insufficient CPU power will suffer from slow page loads, timeouts, and an inability to handle concurrent users.

== Key CPU Specifications to Consider ==

When evaluating CPUs, several specifications are critical. Here's a breakdown:

{| class="wikitable"
! Specification
! Description
! Importance for MediaWiki
|-
| Cores
| The number of independent processing units within a CPU.
| High - More cores allow for parallel processing of requests, improving concurrent user handling.
|-
| Clock Speed (GHz)
| The rate at which the CPU executes instructions.
| Medium - Higher clock speed generally means faster processing, but isn't the sole determinant of performance.
|-
| Cache Size (L1, L2, L3)
| Temporary storage for frequently accessed data.
| High - Larger cache sizes reduce the need to access slower memory, boosting performance.
|-
| Instructions Per Cycle (IPC)
| The average number of instructions a CPU can execute per clock cycle.
| High - Higher IPC means more work is done per cycle, leading to better performance.
|-
| Thermal Design Power (TDP)
| The maximum amount of heat the CPU is expected to dissipate.
| Medium - Impacts cooling requirements and power consumption.
|}

== Recommended CPU Tiers ==

The optimal CPU tier depends on the scale of your [[wiki]]. Here are some general recommendations:

=== Small Wiki (Under 500,000 Pages, Low Traffic) ===

For small wikis with limited traffic, a mid-range CPU is sufficient.

{| class="wikitable"
! CPU Brand
! Model Example
! Cores/Threads
! Approx. Cost
|-
| Intel
| Intel Xeon E3-1220 v6
| 4/8
| $200 - $300
|-
| AMD
| AMD Ryzen 5 3600
| 6/12
| $150 - $250
|}

These CPUs offer a good balance of performance and cost for basic MediaWiki deployments. Ensure adequate [[RAM]] is also present (at least 8GB).

=== Medium Wiki (500,000 - 5 Million Pages, Moderate Traffic) ===

Medium-sized wikis require more processing power to handle increased load and complex queries.

{| class="wikitable"
! CPU Brand
! Model Example
! Cores/Threads
! Approx. Cost
|-
| Intel
| Intel Xeon E5-2680 v4
| 14/28
| $400 - $600
|-
| AMD
| AMD Ryzen 7 5800X
| 8/16
| $300 - $450
|}

Consider CPUs with a higher core count and larger cache sizes. Invest in a robust [[cooling solution]] to maintain stable performance.

=== Large Wiki (Over 5 Million Pages, High Traffic) ===

Large wikis demand high-end CPUs with substantial processing power and scalability. Consider using multiple CPUs.

{| class="wikitable"
! CPU Brand
! Model Example
! Cores/Threads
! Approx. Cost
|-
| Intel
| Intel Xeon Gold 6248R
| 24/48
| $1500 - $2500
|-
| AMD
| AMD EPYC 7543P
| 32/64
| $2000 - $3500
|}

These CPUs are designed for demanding workloads and can handle a large number of concurrent users. Proper [[server configuration]] and [[load balancing]] are essential.

== Considerations for Virtualization ==

If you are running MediaWiki in a [[virtual machine]] environment (e.g., using [[VMware]], [[VirtualBox]], or [[KVM]]), ensure that the virtual machine is allocated sufficient CPU resources. Over-allocation can lead to performance degradation. Monitor CPU usage within the virtual machine to identify bottlenecks. Consider CPU pinning to dedicate specific physical CPU cores to the virtual machine.

== Monitoring CPU Performance ==

Regularly monitor CPU usage using tools like `top`, `htop`, `vmstat`, or server monitoring software. Pay attention to CPU utilization, load average, and wait times. High CPU utilization consistently indicates a need for either CPU upgrades or [[optimization]] of MediaWiki's configuration. Investigate processes consuming excessive CPU resources. Remember to review [[error logs]] for clues.

== Further Resources ==

* [[MediaWiki Performance Tuning]]
* [[Database Optimization]]
* [[Caching Strategies]]
* [[Server Security]]
* [[Load Balancing]]

[[Category:Server Hardware]]

== Intel-Based Server Configurations ==
{| class="wikitable"
! Configuration
! Specifications
! Benchmark
|-
| [[Core i7-6700K/7700 Server]]
| 64 GB DDR4, NVMe SSD 2 x 512 GB
| CPU Benchmark: 8046
|-
| [[Core i7-8700 Server]]
| 64 GB DDR4, NVMe SSD 2x1 TB
| CPU Benchmark: 13124
|-
| [[Core i9-9900K Server]]
| 128 GB DDR4, NVMe SSD 2 x 1 TB
| CPU Benchmark: 49969
|-
| [[Core i9-13900 Server (64GB)]]
| 64 GB RAM, 2x2 TB NVMe SSD
|
|-
| [[Core i9-13900 Server (128GB)]]
| 128 GB RAM, 2x2 TB NVMe SSD
|
|-
| [[Core i5-13500 Server (64GB)]]
| 64 GB RAM, 2x500 GB NVMe SSD
|
|-
| [[Core i5-13500 Server (128GB)]]
| 128 GB RAM, 2x500 GB NVMe SSD
|
|-
| [[Core i5-13500 Workstation]]
| 64 GB DDR5 RAM, 2 NVMe SSD, NVIDIA RTX 4000
|
|}

== AMD-Based Server Configurations ==
{| class="wikitable"
! Configuration
! Specifications
! Benchmark
|-
| [[Ryzen 5 3600 Server]]
| 64 GB RAM, 2x480 GB NVMe
| CPU Benchmark: 17849
|-
| [[Ryzen 7 7700 Server]]
| 64 GB DDR5 RAM, 2x1 TB NVMe
| CPU Benchmark: 35224
|-
| [[Ryzen 9 5950X Server]]
| 128 GB RAM, 2x4 TB NVMe
| CPU Benchmark: 46045
|-
| [[Ryzen 9 7950X Server]]
| 128 GB DDR5 ECC, 2x2 TB NVMe
| CPU Benchmark: 63561
|-
| [[EPYC 7502P Server (128GB/1TB)]]
| 128 GB RAM, 1 TB NVMe
| CPU Benchmark: 48021
|-
| [[EPYC 7502P Server (128GB/2TB)]]
| 128 GB RAM, 2 TB NVMe
| CPU Benchmark: 48021
|-
| [[EPYC 7502P Server (128GB/4TB)]]
| 128 GB RAM, 2x2 TB NVMe
| CPU Benchmark: 48021
|-
| [[EPYC 7502P Server (256GB/1TB)]]
| 256 GB RAM, 1 TB NVMe
| CPU Benchmark: 48021
|-
| [[EPYC 7502P Server (256GB/4TB)]]
| 256 GB RAM, 2x2 TB NVMe
| CPU Benchmark: 48021
|-
| [[EPYC 9454P Server]]
| 256 GB RAM, 2x2 TB NVMe
|
|}

== Order Your Dedicated Server ==
[https://powervps.net/?from=32 Configure and order] your ideal server configuration

=== Need Assistance? ===
* Telegram: [https://t.me/powervps @powervps Servers at a discounted price]

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

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