Microsoft Technology Licensing, LLC

Deepthi Sri Dhulipalla

Qi Zhang

James Christopher Gray

Ilia Sacson

Vibhor Bhatt

Minxiao Zhou

Ishfaq Mohammad Ismail

Scotia Clover Baker

Manikanta Reddy Dornala

Travis Alcantara

Yash Sharma

Identifying a trace based on wait chain coverage analysis comprises identifying a scenario covered by a plurality of traces, as well as a plurality of scenario phases. Each phase has corresponding phase beginning and ending, and is covered by corresponding trace(s) of the plurality of traces. For each prior instance of each phase, a corresponding wait chain comprising a series of wait operations is identified. After identifying signatures configured to match a subset of wait operations in wait chain(s), at least a signature coverage is calculated over the identified corresponding wait chains. The signature coverage characterizes portions(s) of these wait chains that are matched by the signature(s). Based on calculating the signature coverage, one or more of the plurality of traces are identified as having unknown wait states, based on the identified trace(s) corresponding to a larger amount of uncovered wait chain portions than others of the plurality of traces.

Trace identification based on wait chain coverage analysis

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Deepthi Sri Dhulipalla