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Runtime Systems — Senior

Runtime incidents surface as warmup latency, deoptimization storms, class-loader leaks, code-cache exhaustion, slow safepoints, stack overflow, or GC pressure. Correlate runtime events with request traces and deployment changes. Avoid tuning without a phase-level metric.

Test yourself

  1. How does a loader retain an application graph?
  2. Why can deoptimization spike latency?
  3. What delays a safepoint?

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