Note book to help you and me remember some tricks

Month July 2025

Java memory problem causing overuse of the garbage collector

Detection of a Java memory problem causing overuse of the garbage collector: We are on a server with 4 cpu cores. We can see that 98,5% of these 4 cors is used, it means 387,9% of one cpu. The culprit… Continue Reading →

VSCode + Free LLM model + RAG on your source code in private server – no data shared to outside

This post follow the previous one you should read it in order to configure a LLM on your private server. First we create a userdev in which we will create our API for RAG. We create virtual python environment to… Continue Reading →

Detect ghost space on linux system

On one server there was space missing As you can see / size is 118G but when you look at the data size in / you find 69G 49G are missing The reason is that there are files deleted but… Continue Reading →

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