ShopperCove
Menu
All writingBlogTopicsCategoriesAboutRSS
Blog
Categories
Observability & SRE62All categories
Topics
sre111localhost lab102performance70python58javascript47bundle size36benchmarking35node.js35web development21typescript19benchmark16content creation15All topics
About

Topic

rlimit_nofile

1 post

Loading posts…

ShopperCove

Hands-on notes on developer tools, written after the tool has actually been run.

All writingBlogCategoriesTopicsAboutPrivacyRSS

© 2026 ShopperCove

ulimit Soft vs Hard File Descriptors: EMFILE Lab with Real Numbers

Hands-on RLIMIT_NOFILE lab: soft=64 → EMFILE after 58 held accepts; soft=512 takes 200/200. Soft raises without root; hard does not. Real numbers.

30 Sept 20265 min read
→