CPU Benchmarks
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CPU Benchmarks: A Guide for MediaWiki Server Administrators
This article provides an overview of CPU benchmarks and their relevance to running a high-performance MediaWiki installation. Selecting the right CPU is critical for ensuring a responsive and scalable wiki experience for your users. We will cover various benchmarking metrics, common CPU architectures, and how to interpret benchmark results. This guide is aimed at newcomers to server administration and assumes basic familiarity with server hardware concepts.
Understanding CPU Benchmarks
CPU benchmarks measure the processing power of a central processing unit (CPU). They provide a standardized way to compare the performance of different CPUs under various workloads. It’s important to understand that no single benchmark perfectly represents real-world MediaWiki usage. However, a combination of benchmarks can give a good indication of overall performance. Key metrics include:
- Clock Speed (GHz): Indicates how many instructions the CPU can execute per second. Higher is generally better, but not always indicative of overall performance.
- Core Count & Thread Count: More cores and threads allow the CPU to handle more tasks concurrently. MediaWiki benefits significantly from multi-core processors, especially with high user loads.
- Instructions Per Cycle (IPC): Measures how efficiently the CPU executes instructions. Higher IPC generally means better performance.
- Cache Size (L1, L2, L3): Cache memory stores frequently accessed data, reducing the need to access slower RAM. Larger caches can improve performance.
- Thermal Design Power (TDP): Indicates the maximum amount of heat the CPU will generate. Important for cooling considerations.
Common Benchmarking Suites
Several benchmarking suites are commonly used to evaluate CPU performance. Here are a few popular options:
- Geekbench: A cross-platform benchmark that measures CPU and memory performance.
- Cinebench: Focuses on rendering performance, which can be indicative of sustained CPU workload handling.
- PassMark CPU Mark: A widely used benchmark that provides an overall performance score.
- Sysbench: A more server-focused benchmark, useful for testing database performance, which is crucial for MediaWiki performance.
Example CPU Comparison (Mid-Range Servers)
The following table compares several mid-range CPUs commonly used in MediaWiki servers. These values are approximate and can vary based on system configuration and testing conditions.
| CPU Model | Core/Thread Count | Base Clock Speed (GHz) | Boost Clock Speed (GHz) | Geekbench 5 (Single-Core) | Geekbench 5 (Multi-Core) | TDP (Watts) |
|---|---|---|---|---|---|---|
| Intel Xeon E3-1270 v5 | 4 / 8 | 3.6 | 3.9 | 1400 | 4800 | 80 |
| AMD Ryzen 5 3600 | 6 / 12 | 3.6 | 4.2 | 1500 | 7500 | 65 |
| Intel Core i5-10400 | 6 / 12 | 2.9 | 4.3 | 1450 | 6800 | 65 |
High-Performance CPU Options
For larger MediaWiki installations with high traffic, consider higher-performance CPUs. These typically come with a higher price tag but can significantly improve performance.
| CPU Model | Core/Thread Count | Base Clock Speed (GHz) | Boost Clock Speed (GHz) | Geekbench 5 (Single-Core) | Geekbench 5 (Multi-Core) | TDP (Watts) |
|---|---|---|---|---|---|---|
| Intel Xeon Gold 6248R | 24 / 48 | 3.0 | 4.0 | 1700 | 13000 | 150 |
| AMD EPYC 7402P | 32 / 64 | 2.8 | 3.9 | 1600 | 16000 | 170 |
| Intel Core i9-13900K | 24 / 32 | 3.0 | 5.8 | 2000 | 19000 | 125 |
Impact on MediaWiki Components
Different MediaWiki components benefit from different CPU characteristics:
- Web Server (Apache/Nginx): Benefits from high single-core performance and efficient threading.
- PHP Processing: Heavily reliant on multi-core performance, especially for complex extensions and parser functions. Consider the impact of PHP opcode caching.
- Database Server (MySQL/MariaDB/PostgreSQL): Benefits from a large cache and multiple cores to handle concurrent queries. See Database server configuration for more details.
- Parser & Complex Extensions: Demanding and benefit from high IPC and clock speeds. Consider the impact of extension installation.
Conclusion & Further Resources
Choosing the right CPU for your MediaWiki server is a complex process. Consider your expected user load, the complexity of your wiki, and your budget. Benchmarking suites provide valuable data, but remember to consider real-world MediaWiki usage patterns. Regular monitoring of server performance is essential to ensure optimal performance. Further reading can be found on the official MediaWiki server requirements page and on the scaling MediaWiki page. Also, review the load balancing documentation for larger installations.
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Intel-Based Server Configurations
| 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
| 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 |
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⚠️ *Note: All benchmark scores are approximate and may vary based on configuration. Server availability subject to stock.* ⚠️