Microsoft Technology Licensing, LLC

Manish Godse

Maoni Zhang Stephens

Mark Ronald Plesko

Ying Hung Au

Mukund Raghav Sharma

Some embodiments perform lightweight monitoring for garbage collection (GC) flow events, then perform focused tracing after detecting a performance problem signal. The tracing is focused by constraints which are specified in a designation data structure, including a performance problem signal definition, a corresponding trace data category and a corresponding tracing stop trigger. Tracing is done only in the specified category and only for the specified time period, to reduce or avoid collection of irrelevant trace data and to reduce or avoid changes in program behavior caused by the tracing itself. Some designation data structures also specify a corresponding trace data analysis. In operation, some embodiments dynamically re-focus tracing on an offshoot trace in response to a trace data analysis result obtained while the program is still executing.

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Sammamish, WA, United States of America

Manish Godse