Choosing the right VPS plan requires understanding how CPU, RAM, storage, and bandwidth work together to support your applications. Over-provisioning wastes money; under-provisioning causes slowdowns and crashes. This guide explains what each resource does, how to measure your needs, and how to choose the right SakuraHost VPS plan for your workload.
1. CPU (vCPU Cores)
CPU cores determine how many tasks your server can process simultaneously. Each vCPU core on SakuraHost VPS is backed by high-frequency enterprise processors.
What Consumes CPU?
- PHP processing - WordPress, WHMCS, Laravel, and other PHP applications use CPU for every page request
- SSL/TLS encryption - HTTPS handshakes require CPU computation
- Database queries - Complex JOINs, sorting, and aggregation operations
- Video transcoding / image processing - Extremely CPU-intensive tasks
- Application compilation - Building code, running CI/CD pipelines
How to Check CPU Usage
CPU Sizing Guide
- 1 vCPU - Personal blogs, small websites, development environments
- 2 vCPUs - Business websites, small e-commerce, medium-traffic applications
- 4 vCPUs - High-traffic web applications, database servers, multiple websites
- 8+ vCPUs - Large-scale applications, API servers, compute-intensive workloads
top output, indicating other tenants are consuming your CPU time. SakuraHost dedicated VPS plans eliminate this issue entirely with guaranteed CPU allocation.
2. RAM (Memory)
RAM is your server's short-term memory. It holds running applications, database caches, file system buffers, and active user sessions. When RAM runs out, the system falls back to swap space on disk, which is dramatically slower.
What Consumes RAM?
- Operating system - Ubuntu itself requires 300-500 MB
- Web server (Nginx) - Typically 50-200 MB depending on connections
- Database server - MySQL/PostgreSQL buffer pools are the primary RAM consumer. A well-tuned MySQL instance should use 50-70% of available RAM for InnoDB buffer pool
- Application runtime - Node.js typically uses 100-500 MB per process; PHP-FPM uses 30-80 MB per worker
- File system cache - Linux uses free RAM to cache frequently accessed files, improving performance
How to Check Memory Usage
RAM Sizing Guide
- 1 GB - Minimal: static sites, lightweight Node.js apps, small WordPress without caching
- 2 GB - Standard: WordPress with caching, small database, single application
- 4 GB - Comfortable: multiple applications, medium databases, Docker containers
- 8 GB - Power: large databases, multiple Docker containers, high-traffic applications
- 16+ GB - Enterprise: large database servers, caching layers (Redis/Memcached), data processing
Configuring Swap Space
Swap acts as emergency overflow when RAM is full. It should supplement RAM, not replace it.
3. Storage (SSD/NVMe)
SakuraHost VPS plans use NVMe SSD storage, delivering significantly faster read/write speeds compared to traditional SATA SSDs or mechanical hard drives.
Storage Performance Comparison
- NVMe SSD (SakuraHost) - Up to 3,500 MB/s read, 3,000 MB/s write
- SATA SSD - Up to 550 MB/s read, 520 MB/s write
- HDD - Up to 200 MB/s read, 150 MB/s write
What Consumes Storage?
Common storage consumers include operating system and packages (2-5 GB), databases (varies widely), log files (can grow rapidly without rotation), application code and dependencies, user uploads and media files, and backups (if stored locally).
Storage Sizing Guide
- 25 GB - Small websites, blogs, lightweight applications
- 50 GB - Medium applications with databases, moderate file storage
- 100 GB - Large databases, media-heavy applications, multiple projects
- 200+ GB - Data-intensive workloads, large backups, file storage servers
4. Bandwidth and Network
Bandwidth determines how much data can flow in and out of your server monthly. SakuraHost VPS plans include generous bandwidth allocations with high-speed network connections.
5. Choosing the Right Plan
Here are typical resource requirements for common use cases:
- WordPress Blog - 1 vCPU, 2 GB RAM, 25 GB SSD
- E-commerce Store - 2 vCPUs, 4 GB RAM, 50 GB SSD
- Node.js/Next.js App - 2 vCPUs, 4 GB RAM, 50 GB SSD
- Database Server - 4 vCPUs, 8 GB RAM, 100 GB SSD
- Docker Multi-App - 4 vCPUs, 8 GB RAM, 100 GB SSD
- CI/CD Server - 4 vCPUs, 8 GB RAM, 50 GB SSD