Eliminate rollback-loop allocations and replay scans #20

New Issue

2026-09-15T16:42:57Z

EIREXE commented

2026-09-15 16:42:57 +00:00

Severity: Performance

Bone pose updates allocate scratch/output vectors per fighter frame at src/fighter/baked_animation.rs:331-351. Air collision allocates and sorts every candidate at src/fighter/collision.rs:48-74. Replay playback linearly scans all frames/checksums at src/replay.rs:223-227 and :249-253, producing quadratic playback behavior.

Fix: reuse buffers, select collision hits without allocation/sort, and index validated replay frames directly.

Severity: Performance Bone pose updates allocate scratch/output vectors per fighter frame at src/fighter/baked_animation.rs:331-351. Air collision allocates and sorts every candidate at src/fighter/collision.rs:48-74. Replay playback linearly scans all frames/checksums at src/replay.rs:223-227 and :249-253, producing quadratic playback behavior. Fix: reuse buffers, select collision hits without allocation/sort, and index validated replay frames directly.

EIREXE referenced a pull request that will close this issue

2026-09-20 11:56:01 +00:00

Optimize rollback hot paths #53

EIREXE closed this issue

2026-09-20 12:41:14 +00:00

EIREXE referenced this issue from a commit

2026-09-20 12:41:15 +00:00

Optimize rollback hot paths (#53)

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