RAM for a WordPress Server
Nginx, 6 PHP-FPM workers and MariaDB with a 512 MB buffer pool: a small to medium WordPress site. That needs about 1.49 GB; a 2 GB plan leaves room to spare. Adjust it below.
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Operating System
Web Server
Choose a plan with
Estimated use 1.49 GB, plus 25% headroom
Where It Goes
Linux300 MB
Nginx50 MB
PHP-FPM (6 workers)360 MB
Database812 MB
VPS RAM Calculator
Memory for WordPress
Linux300 MB
Nginx50 MB
PHP-FPM (6 workers)360 MB
Database812 MB
Plan to Choose2 GB
Nginx, 6 PHP-FPM workers and MariaDB with a 512 MB buffer pool: a small to medium WordPress site.
Figures are typical; check real use with free -h and htop after a week of normal traffic, and resize if the server swaps.
Questions
How much RAM does a wordpress server need?
About 1.49 GB for the set-up described; choose 2 GB to leave headroom.
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