google / google/perfetto

View a histogram of slices matching a query

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ui
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C++
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Description

I love the feature of viewing a histogram for slices of the same name:

Image

I want to be able to generate the same thing, but for slices that match an arbitrary filter.

As far as I can tell, this is not possible. I even tried using the Data Explorer visual interface, but the "Histogram" chart type doesn't show any data:

Image

Is this a bug with the Data Explorer?

Contributor guide

Open the contributing guide

Research direction

Start with the Data Explorer and its Histogram chart type, then trace how arbitrary filters are applied to slices. Confirm the existing same-name slice histogram behavior and determine what is missing for filtered slices; done means a matching histogram renders for an arbitrary filter or the limitation is clearly resolved.

Written by the indexing model from the issue text.

Assessment

Domain
data-visualization
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
45/100

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