df6ccb0496
Enhance CPU time logging to include wall clock duration alongside CPU consumption. When a unit transitions to inactive/failed state, the log message now shows both CPU time consumed and the total wall clock time since activation. Changes: - Calculate wall clock duration using active_enter_timestamp - Update log format: "Consumed Xs CPU time over Ys wall clock time" - Fallback to original format if no activation timestamp available - Use monotonic clock for accurate duration calculation This addresses issue #35738 by providing administrators better context about service performance and resource efficiency. Example output: - With wall clock: "service: Consumed 30s CPU time over 5min wall clock time" - Without timestamp: "service: Consumed 30s CPU time"
System and Service Manager
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