ARM Technical Support Knowledge Articles

In the Timeline view of Streamline, why do the process/thread bars and detail bars not match?

Applies to: DS-5

Answer

Streamline generates process/thread bars using thread trace synchronously output from the kernel scheduler, whereas the detail bars are based on function callstack samples generated on a periodic interrupt.

The correlation between the periodic samples and kernel scheduler events may not always be perfect due to the different measurement approaches. 

Article last edited on: 2011-06-20 14:24:04

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