Compare the performance of AtomicLong and LongAdder classes
LongAdder class is added in Java 8. Official Java docs say: Under high contention, expected throughput of this class compared to AtomicLong is significantly…
Java, Performance Optimization
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How to improve the performance of your spring boot tests a lot
Imagine you have one hundred spring boot test classes. When you start all of your tests, what is your intention:…
How would you tune this SQL query?
Imagine having an index on person_id and you would like to perform the query: select bank_account_number from bank_account where person_id = :1…
What should you know about SQL indexes as a Java developer?
The majority of developers don’t know a lot about SQL performance tuning. I find this topic very interesting and I…