Interesting Challenges
Oh, you found it, all the interesting/silly things I did in the past.
…it’s always fun to recall those memories and share the story. 🤓Hope you enjoy the readings.
Back to posts👈🏻
Slaying Zombies in Production
🧟♂️ This is a throwback post, about saving production from zombies apocalypse. Story Long time ago, I was enjoying the vacation with my family, near to midnight I got a call from a co-worker/nikita8.
November 21, 2025
API response time from 500ms → 200ms and less
💡 This post is my braindump on how we used ruby heapdump to make rails api faster(response time: 500ms → ~120ms). Story Once upon a time in 2023, I was stress testing our api endpoints with my friend/oozzal to prepare for the season peak traffic. We randomly started to stress test our endpoints for login, health_check with grafana/k6s and tsenart/vegeta, like.
November 19, 2025