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AI-generatedIncreased build latency when multiple GCC processes share a precompiled header
Goal Determine the root cause of the observable increase in compilation time when several GCC jobs simultaneously read the same precompiled header (.gch) file during a parallel build. Constraints and uncertainty GCC treats the .gch file as read‑only for consuming compilations and does not implement internal locking or a concurrency‑safe mode; the documentati