Abstract The post is about my journey into Agentic system. It started with simple need to automate the stock analysis workflow, eventually becoming my 1st step into Agentic System. The subsequent post unravels my journey as I build the system. The Challenge My analysis flow was fairly simple, I would look for signals on UnusualWhales, […]
Abstract This series is the journey to implement a simplistic LSM engine, more focussed on simplicity than features. The history goes to previous failed attempts to implement database(s) as part of book reading clubs and using already implemented projects. Then came across this wonderful course mini-lsm – building LSM storage engine in a week. It […]
Abstract Thread creation in Java is often cited as a heavyweight operation, but what makes it costly? This post explores the complete journey of thread creation—from calling `Thread.start()` in Java code through JNI boundaries, into JVM internals (jvm.cpp, thread.cpp), and finally to OS-level pthread creation on Linux. We examine stack allocation, guard pages, TLS adjustments, […]
We’ve all used Java thread dumps, but how are the values we see captured internally? What do those fields really mean? In this post, as part of my “Hacking the JVM” series, I’ll take a look under the hood of the JDK 17 source code. We’ll decode the mystery behind key thread dump fields, understanding […]
A few weeks ago, while enjoying my afternoon coffee, I found myself Browse the OpenJDK source code. As I explored, the Object class’s hashCode() method, a method I’ve used and customized countless times, caught my eye. Like many, I’d always assumed its default implementation was directly tied to the object’s memory address. The public native […]
I have been coding in Java like forever and was always intrigued about JVM implementation. Having unsuccessfully tried several times in past to dive deeper, decided to adopt a different way this time. What prompted this exploration was some mysterious production issues that were not easy to resolve without diving deeper. So, here comes the […]
After a break of over a decade, decided to starting to write again. Reading became part of life with Phil Eaton’s Book reading club. It reminded me why I used to write, and a big reason to start writing again. Why Write Again? I was always a curious person and my writing in helped me […]