delta only option for differential flame graphs

[spiermar]

[wonder-mice]

I'm not sure what the plan is here, but will not it be addressed by allowing custom getDelta/getValue callbacks?

[spiermar]

Different thing, but it could be addressed by a custom value function. Idea is to have a flame graph based on data.delta values, not data.value.

[wonder-mice]

What will be the width of a node in this case?

[spiermar]

The delta. It's a different kind of visualization.

[shawncao]

Hi @spiermar Since it has been a while, may I get an update on this?

Do we have any alternative option today to display a differential flamegraph?

[spiermar]

This can be achieved today with a custom getValue function. Delta only flame graph would be something like:

.getValue((d) => d.data.delta)

You could also change the value in the data structure too. It would achieve the same result.

I'm not using delta only in any tools today. Found that differential with red blue frame shades + elided flame graphs, side by side, work best for finding differences.

[shawncao]

Sounds good, thank you for your quick reply!