History

Robert Swain fd330c834f Fix sprite performance regression since retained render world (#17078 ) # Objective - Fix sprite rendering performance regression since retained render world changes - The retained render world changes moved `ExtractedSprites` from using the highly-optimised `EntityHasher` with an `Entity` to using `FixedHasher` with `(Entity, MainEntity)`. This was enough to regress framerate in bevymark by 25%. ## Solution - Move the render world entity into a member of `ExtractedSprite` and change `ExtractedSprites` to use `MainEntityHashMap` for its storage - Disable sprite picking in bevymark ## Testing M4 Max. `bevymark --waves 100 --per-wave 1000 --benchmark`. main in yellow vs PR in red: <img width="590" alt="Screenshot 2025-01-01 at 16 36 22" src="https://github.com/user-attachments/assets/1e4ed6ec-3811-4abf-8b30-336153737f89" /> 20.2% median frame time reduction. <img width="594" alt="Screenshot 2025-01-01 at 16 38 37" src="https://github.com/user-attachments/assets/157c2022-cda6-4cf2-bc63-d0bc40528cf0" /> 49.7% median extract_sprites execution time reduction. Comparing 0.14.2 yellow vs PR red: <img width="593" alt="Screenshot 2025-01-01 at 16 40 06" src="https://github.com/user-attachments/assets/abd59b6f-290a-4eb6-8835-ed110af995f3" /> ~6.1% median frame time reduction. --- ## Migration Guide - `ExtractedSprites` is now using `MainEntityHashMap` for storage, which is keyed on `MainEntity`. - The render world entity corresponding to an `ExtractedSprite` is now stored in the `render_entity` member of it.		2025-01-01 18:40:11 +00:00
..
bevymark.rs	Fix sprite performance regression since retained render world (#17078 )	2025-01-01 18:40:11 +00:00
many_animated_sprites.rs	Move TextureAtlas into UiImage and remove impl Component for TextureAtlas (#16072 )	2024-10-23 23:24:17 +00:00
many_buttons.rs	`many_buttons` `display-none` commandline argument (#16905 )	2024-12-19 19:58:15 +00:00
many_cameras_lights.rs	Do not re-check visibility or re-render shadow maps for point and spot lights for each view (#15156 )	2024-11-11 18:49:09 +00:00
many_components.rs	Added stress test for large ecs worlds (#16591 )	2024-12-10 02:26:42 +00:00
many_cubes.rs	Make indirect drawing opt-out instead of opt-in, enabling multidraw by default. (#16757 )	2024-12-13 06:16:57 +00:00
many_foxes.rs	aligning public apis of Time,Timer and Stopwatch (#15962 )	2024-10-16 21:09:32 +00:00
many_gizmos.rs	Merge Style properties into Node. Use ComputedNode for computed properties. (#15975 )	2024-10-18 22:25:33 +00:00
many_glyphs.rs	`many_glyphs` `no-ui` and `no-text2d` commandline arguments (#17046 )	2024-12-30 21:25:33 +00:00
many_lights.rs	Improve API for scaling orthographic cameras (#15969 )	2024-10-17 17:50:06 +00:00
many_sprites.rs	aligning public apis of Time,Timer and Stopwatch (#15962 )	2024-10-16 21:09:32 +00:00
many_text2d.rs	Add `many_text2d` stress test (#16997 )	2024-12-29 22:47:01 +00:00
README.md
text_pipeline.rs	aligning public apis of Time,Timer and Stopwatch (#15962 )	2024-10-16 21:09:32 +00:00
transform_hierarchy.rs	aligning public apis of Time,Timer and Stopwatch (#15962 )	2024-10-16 21:09:32 +00:00
warning_string.txt

README.md

Stress tests

These examples are used to stress test Bevy's performance in various ways. These should be run with the "stress-test" profile to accurately represent performance in production, otherwise they will run in cargo's default "dev" profile which is very slow.

Example Command

cargo run --profile stress-test --example <EXAMPLE>