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Docs: Show how to compare two different traces in Tracy (#6869)

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# Objective
Fixes #5199.

## Solution
Mention how to compare two different saved tracy traces in the profiling section.
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James Liu 2022-12-07 22:57:27 +00:00
parent 176d7df5db
commit 10898d1dc9
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docs/profiling.md
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@ -48,6 +48,10 @@ Or you can select an individual system and inspect its statistics (available thr
![A graph and statistics in the Tracy GUI showing the distribution of execution times of an instrumented span in the application](https://user-images.githubusercontent.com/302146/163988464-86e1a3ee-e97b-49ae-9f7e-4ff2b8b761ad.png)
If you save more than one trace, you can compare the spans between both of them by clicking the `Compare` button at the top of the UI. This will open a dialog box asking to load a second trace. From there, it's possible to select any family of spans to more closely compare the timing and distribution of a particular span.
![A graph and statistics in the Tracy GUI comparing the distribution of execution times of an instrumented span across two traces](https://user-images.githubusercontent.com/3137680/205834698-84405b2f-97b5-43a3-9dba-385167ac1db5.png)
### Adding your own spans
Add spans to your app like this (these are in `bevy::prelude::*` and `bevy::log::*`, just like the normal logging macros).