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Issue metadata

Status: Available
Owner: ----
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OS: Windows
Pri: 2
Type: Bug



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Traced thread_duration values are sometimes None on Windows

Project Member Reported by vmi...@chromium.org, Sep 2

Issue description

When computing timeline metrics, ResultsForThread.cpu_time(), we sometimes
get trace results with missing thread_durations.  This makes us output 0 for these thread's metrics.

Here is an example.

https://chromeperf.appspot.com/report?sid=169455b467a6e3286ca78739e548b4026b088dc65265bbbb721733dc395c49d1
 

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