Ok so I make a test I have this old vps from Contabo with only 128MB and I think lets see if is possible to run nginx mariadb php-fpm and wordpress all together 😂 the answer is NO but the journey is very good so I start with nginx alone and is fine then I add php-fpm and is still fine but slow then I try mariadb and everything explode I learn about swap tuning and oom killer and now I share here for everyone who want to try the same crazy thing
Hey folks, just a quick note that crash reports are welcome here but please keep safety in mind, if you are testing on a production node with customer data that is not something we can encourage 🙂 the educational angle is solid though, carry on
nginx 1.24.0 with default worker_processes auto will spawn 4 workers on most KVM nodes, consuming ~20MB resident before any traffic — see https://nginx.org for worker tuning docs.
MariaDB 10.11 with innodb_buffer_pool_size default 128MB attempts allocation that exceeds total RAM.
PHP-FPM 8.2 with pm.max_children default 5 creates pool overhead of ~15MB per child under opcache.
My recommendation: realistic minimum for LEMP with any database workload is 512MB RAM, 256MB only if MariaDB is replaced with SQLite and nginx worker count is manually constrained to 1.
Contabo 128MB is 3.99 EUR yes? For 4.20 EUR you get 2GB RAM at Webh. I know because I check every week. Tanie serwery exist but sometimes cheap is too cheap.
BuyVM is a solid choice for low-memory workloads. Their control panel lets you set swap explicitly which helps on the 512MB plans. Still wouldn't run MariaDB on less than 512MB though.
In Japan we have ConoHa VPS starting around 600 yen for 512MB. The 128MB experiment is interesting academically but for production please use proper spec.
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