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James Liu d33f5c759c
Add optional single-threaded feature to bevy_ecs/bevy_tasks (#6690) 
# Objective
Fixes #6689.

## Solution
Add `single-threaded` as an optional non-default feature to `bevy_ecs`
and `bevy_tasks` that:
 
 - disable the `ParallelExecutor` as a default runner
 - disables the multi-threaded `TaskPool`
- internally replace `QueryParIter::for_each` calls with
`Query::for_each`.

Removed the `Mutex` and `Arc` usage in the single-threaded task pool.


![image](https://user-images.githubusercontent.com/3137680/202833253-dd2d520f-75e6-4c7b-be2d-5ce1523cbd38.png)

## Future Work/TODO
Create type aliases for `Mutex`, `Arc` that change to single-threaaded
equivalents where possible.

---

## Changelog
Added: Optional default feature `multi-theaded` to that enables
multithreaded parallelism in the engine. Disabling it disables all
multithreading in exchange for higher single threaded performance. Does
nothing on WASM targets.

---------

Co-authored-by: Carter Anderson <mcanders1@gmail.com>
2023-07-09 04:22:15 +00:00
..
bevy_a11y Bump accesskit and accesskit_winit. (#8655) 2023-07-07 22:49:53 +00:00
bevy_animation Register bevy_animation::PlayingAnimation (#9023) 2023-07-04 21:49:53 +00:00
bevy_app Relaxed runner type from Fn to FnOnce (#8961) 2023-06-29 00:48:37 +00:00
bevy_asset bevy_reflect: FromReflect Ergonomics Implementation (#6056) 2023-06-29 01:31:34 +00:00
bevy_audio bevy_audio: ECS-based API redesign (#8424) 2023-07-07 23:01:17 +00:00
bevy_core bevy_reflect: FromReflect Ergonomics Implementation (#6056) 2023-06-29 01:31:34 +00:00
bevy_core_pipeline Fix CAS shader with explicit FullscreenVertexOutput import (#8993) 2023-06-29 19:56:57 +00:00
bevy_derive bevy_derive: Add #[deref] attribute (#8552) 2023-05-16 18:29:09 +00:00
bevy_diagnostic Allow tuples and single plugins in add_plugins, deprecate add_plugin (#8097) 2023-06-21 20:51:03 +00:00
bevy_dylib Suppress the clippy::type_complexity lint (#8313) 2023-04-06 21:27:36 +00:00
bevy_dynamic_plugin Remove stray boilerplate line in bevy_dynamic_plugin/Cargo.toml (#8830) 2023-06-12 19:10:48 +00:00
bevy_ecs Add optional single-threaded feature to bevy_ecs/bevy_tasks (#6690) 2023-07-09 04:22:15 +00:00
bevy_ecs_compile_fail_tests Resolve clippy issues for rust 1.70.0 (#8738) 2023-06-01 21:05:05 +00:00
bevy_encase_derive update syn, encase, glam and hexasphere (#8573) 2023-05-16 01:24:17 +00:00
bevy_gilrs Add gamepad rumble support to bevy_input (#8398) 2023-04-24 15:28:53 +00:00
bevy_gizmos Remove unused shader define (#8981) 2023-07-04 21:38:35 +00:00
bevy_gltf bevy_reflect: FromReflect Ergonomics Implementation (#6056) 2023-06-29 01:31:34 +00:00
bevy_hierarchy bevy_reflect: FromReflect Ergonomics Implementation (#6056) 2023-06-29 01:31:34 +00:00
bevy_input bevy_reflect: FromReflect Ergonomics Implementation (#6056) 2023-06-29 01:31:34 +00:00
bevy_internal Add optional single-threaded feature to bevy_ecs/bevy_tasks (#6690) 2023-07-09 04:22:15 +00:00
bevy_log log to stderr instead of stdout (#8886) 2023-06-19 23:36:02 +00:00
bevy_macro_utils update syn, encase, glam and hexasphere (#8573) 2023-05-16 01:24:17 +00:00
bevy_macros_compile_fail_tests bevy_derive: Add #[deref] attribute (#8552) 2023-05-16 18:29:09 +00:00
bevy_math Add integer equivalents for Rect (#7984) 2023-06-12 19:10:48 +00:00
bevy_mikktspace update syn, encase, glam and hexasphere (#8573) 2023-05-16 01:24:17 +00:00
bevy_pbr Run update_previous_view_projections in PreUpdate schedule (#9024) 2023-07-05 15:51:19 +00:00
bevy_ptr Fixed several missing links in docs. (#8117) 2023-04-23 17:28:36 +00:00
bevy_reflect bevy_reflect: FromReflect Ergonomics Implementation (#6056) 2023-06-29 01:31:34 +00:00
bevy_reflect_compile_fail_tests bevy_reflect: FromReflect Ergonomics Implementation (#6056) 2023-06-29 01:31:34 +00:00
bevy_render Remove unused dependency on once_cell in bevy_render (#9039) 2023-07-04 21:30:58 +00:00
bevy_scene bevy_scene: Add SceneFilter (#6793) 2023-07-06 21:04:26 +00:00
bevy_sprite bevy_reflect: FromReflect Ergonomics Implementation (#6056) 2023-06-29 01:31:34 +00:00
bevy_tasks Add optional single-threaded feature to bevy_ecs/bevy_tasks (#6690) 2023-07-09 04:22:15 +00:00
bevy_text bevy_reflect: FromReflect Ergonomics Implementation (#6056) 2023-06-29 01:31:34 +00:00
bevy_time bevy_reflect: FromReflect Ergonomics Implementation (#6056) 2023-06-29 01:31:34 +00:00
bevy_transform bevy_reflect: FromReflect Ergonomics Implementation (#6056) 2023-06-29 01:31:34 +00:00
bevy_ui Divide by UiScale when converting UI coordinates from physical to logical (#8720) 2023-07-06 20:27:54 +00:00
bevy_utils Bump hashbrown to 0.14 (#8904) 2023-06-21 13:04:44 +00:00
bevy_window Expose WindowDestroyed events (#9016) 2023-07-04 21:50:53 +00:00
bevy_winit make accesskit_unix optional again (#9074) 2023-07-08 22:31:30 +00:00