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# Objective - currently, bevy employs sparse iteration if any of the target components in the query are stored in a sparse set. it may lead to increased cache misses in some cases, potentially impacting performance. - partial fixes #12381 ## Solution - use dense iteration when an archetype and its table have the same entity count. - to avoid introducing complicate unsafe noise, this pr only implement for `for_each ` style iteration. - added a benchmark to test performance for hybrid iteration. ## Performance  nearly 2x win in specific scenarios, and no performance degradation in other test cases. --------- Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com> Co-authored-by: Christian Hughes <9044780+ItsDoot@users.noreply.github.com> |
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| .. | ||
| entity | ||
| event | ||
| identifier | ||
| observer | ||
| query | ||
| reflect | ||
| schedule | ||
| storage | ||
| system | ||
| world | ||
| archetype.rs | ||
| batching.rs | ||
| bundle.rs | ||
| change_detection.rs | ||
| component.rs | ||
| intern.rs | ||
| label.rs | ||
| lib.rs | ||
| removal_detection.rs | ||
| traversal.rs | ||