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Performance

Compare relative latencies across the memory hierarchy (5 minutes)​

(CPU registers → L1/L2 cache → RAM → disk → network)

Estimate the time and space complexity of a simple algorithm (20 minutes)​

Understand garbage collection in Java and how to avoid memory leaks (15 minutes)​

  • How the JVM manages memory (heap, stack, GC roots)
  • Mark-and-sweep basics
  • Common causes of memory leaks (static references, listeners, caches)
  • Tools for detecting memory issues

Apply common patterns to improve performance (15 minutes)​

Caching​

Object pooling and reuse​

Rate-limiting and buffering​

Parallelization​