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Showing posts from March, 2018

JVM Garbage Collection and Optimizations

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Overview When troubleshooting systems for performance-related issues, memory optimizations are a place that needs a deep analysis of what each system stores in the memory, how long those are stored, and access patterns. This post is to keep a note on the background information and valuable points to note in such an effort, specific to Java-based implementations as a deep understanding of the JVM behaviors is very beneficial in the process.

Java language provides much convenience to the developers by taking care of the memory management to a great extent letting the focus be on the rest of the logic. Still having a good understanding of how Java does this underneath, rationalize several best practices we follow in Java implementations and help design the programs better and think seriously on some aspects that can later lead to memory leaks and system stability in the long run. Java Garbage Collector has a big role in this been responsible for freeing up memory by removing memory gar…

How to Pick Best Stocks in Share Market

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When thinking about investments, 3 things come to my mind, in the Sri Lankan context. Buy real state in a suburb or a town that is fast growingPut in a Fixed Deposit in a bankInvest in the stock market As the current FD rates are in the declining phase, it did not really come as a good option for me at the moment of writing this. Hence I thought to investigate a bit on investing in the share market as it doesn't really need a larger amount of money as to by property as in option 1.
Below is an insightful speech by the richest person in Sri Lanka, who is known as a business magnate, 'Mr. Dhammika Perera', explaining how he started with share market (while the overall speech highlights many important facts, he specifically talks about share market from 6minutes and 26 seconds. Speech is in Sinhalese).

One thing he said, captured me that do not enter a business if you do not know about it. He also emphasized that it's the knowledge we should seek, not money, which surpris…