Frame Markers

XDC 2017 Talk
Focus on specific frames that are defined using filters
A simple frame marker is to use vblanks. Ie:
- Right click on graph, select Edit Frame Markers..., click on $name = drm_vblank_event && $crtc = 1
- Hit Check Filters and it should show you information about vblank 1. Ie:
  - 212 frames, ~11ms apart
Click the Set Frame Markers button
Control+Left and Control+Right will now go through those frames and scale them to fit in the graph window
If you zoom out, you can see the frames in yellow or pink, and the left frame you're focused on in a lighter green.
Ctrl+Shift+Left/Right will move the frames without scaling them to the window
You can do more complicated frames as well. For the sample trace, set:
- Left Frame Marker: $buf =~ "[Compositor] Before wait query
- Right Frame Marker: $buf =~ "[Compositor] After wait query
Your Frame Markers are the areas between the Before wait query and the After wait query print events as in the below image.

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