Open Bug 1774326 Opened 6 months ago Updated 6 months ago

Move marker type to top-level property, potentially using a unique type id


(Core :: Gecko Profiler, task, P2)





(Reporter: mozbugz, Unassigned)


(Blocks 2 open bugs)


In the Gecko Profile JSON format, markers optionally contain a "data" property (tech detail: Through a schema+array model, i.e., a schema defines the index of the "data" property, and it's actually stored in an array).
And if present, the data contains a "type" property, which then determines if&what other data is present.

Since this type is present in a majority of markers, and new markers are encouraged to use their own type (for a customized display), it would be valuable to move the type out of the optional payload, and into the markers' top-level array.

As an added optimization, instead of a string (repeated in each marker), the type should be stored as an integer id, with the mapping id->string stored somewhere central (but outside the main unique-string-table, so that ids stay short).

This would require front-end changes, including a converter from previous versions.

Blocks: 1774328
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