Search Issue Tracker

By Design



Found in [Package]

0.14.0 - preview.18

Issue ID




[ECS] EntityQuery.SetSharedComponentFilter generates GC Alloc every frame

Package: Entity Component System (ECS)


How to reproduce:
1. Open the attached project (
2. Open the SampleScene and enter Play Mode
3. Open the Profiler window and start profiling
4. See the CPU Usage Module, PlayerLoop > SimulationSystemGroup GC Allocations

Expected result: no GC Alloc is generated
Actual result: 20 B of GC Alloc is generated every frame

Reproducible with: 2019.4.10f1(Entities preview.18 - 0.2.0, preview.4 - 0.11.1), 2020.1.5f1, 2020.2.0b2(Entities 0.14.0 - preview.18)
Could not test with: 2018.4.27f1(project incompatible), 2019.4.10f1(Entities preview - 0.1.1 namespace name 'AlwaysSynchronizeSystemAttribute' could not be found)

  1. Resolution Note:

    The reported behavior is by design. We've communicated workarounds to the reporting team; please close if the workaround is acceptable, or let us know if you need additional assistance.

Add comment

Log in to post comment

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.