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Difficulty: Easy
Category: systems
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Topics: systems, parsing, c++, linux
Low-latency trading systems require rigorous performance monitoring to ensure deterministic execution times and prevent resource exhaustion. In Linux environments, quantitative developers frequently interact with the /proc pseudo-filesystem to extract telemetry data without the overhead of external monitoring agents. Task Implement a function that calculates the CPU usage percentage of a process over a specific time interval, given two snapshots of its /proc/pid/stat file. You are given: - stat
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