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Diffing AOT size breakdown for two snapshot profiles #41249

@mehmetf

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@mehmetf

Today, Dart tooling can generate snapshot profiles for AOT and use this to create a Treemap representation in HTML format. The HTML format is very useful for visualizing a single snapshot profile. However, it is not suitable for automatically tracking size increases.

FR: We would like to be able to diff two profiles and see where the size delta is coming from.

One way would be to have a structured representation of the Treemap but it would also be OK to have a tool that generates a diff report.

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area-vmUse area-vm for VM related issues, including code coverage, and the AOT and JIT backends.

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