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Performance tools for Flutter

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See https://github.com/dart-lang/sdk/issues/54692#issuecomment-1904547121 - the GC events being shown are reported as `ms` but are apparently microseconds, not milliseconds.

bug
logging page

Clicking on blank space that precedes the line with the code indicates it sets a breakpoint on that line of code, but it is not being actually triggered. See the...

When clicking between the layers in the Performance > Raster Stats tab. It looks like the CPU spikes really high for some reason. https://github.com/flutter/devtools/assets/1386322/1ad29a86-d866-48ec-b0b6-f4aa0c164f46

bug bash
performance page > raster stats

Sorry I don't know how to reproduce but I tried hitting escape and clicking everywhere and changing tabs, it wouldn't disappear: https://github.com/flutter/devtools/assets/46427323/cf6e1adc-20c6-4d42-8b7d-18b4a8a5ae94 While the screen recording above is from an...

cpu profiler
P2

Using `postMessage` was a workaround that we used in the absence of DTD. Now that DTD is finishing up, we will be able to migrate away from postMessage for the...

tech debt
P2
flutter sidebar

Repro: open DevTools. `flutter: Attempted to call extension 'ext.flutter.inspector.structuredErrors', but no service with that name exists `

bug
P2
cross-screen

Hi guys, it would be much useful if the inspector UI contains explanations about the debug paint (the yellow arrows, blue/grey boxes, etc.). Currently, I can find some info buried...

documentation

Instead of expanding the entire inspector summary tree by default, we should switch to expanding only to the selected widget. This means that only nodes on the direct path to...

inspector page
P1

Similar to #1397 and #481, it would be helpful to have the inspector of focus nodes tree in a GUI like devtools, in addition to [`debugDumpFocusTree`](https://api.flutter.dev/flutter/widgets/debugDumpFocusTree.html)

inspector page
new feature
P2

- [x] Import/Export snapshots to enable: analysis of prod snapshots, sharing snapshots with team, analysis with other tools - https://github.com/flutter/devtools/issues/5606 - [x] Handle memory limit - https://github.com/flutter/devtools/issues/6144 - [x] Improve...

P1