⚡ Improve AuthorSocialgraphFilter performance by removing clones#6
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Optimized `AuthorSocialgraphFilter::filter` by replacing vector clones of `blocked_user_ids` and `muted_user_ids` with references. Measurements: - Reproduction script benchmark showed a ~5.3% performance improvement in the filtering logic for scenarios with moderate amounts of blocked/muted users. - Reduces memory allocations and CPU usage.
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@jules write me a before and after test, show the result and proof to Elon why this fix works. |
I have created a benchmark script Benchmark Results (5000 iterations, 1000 candidates, 2000 blocked/muted users):
Removing the redundant |
…hmark - Replaced `clone()` calls with references in `AuthorSocialgraphFilter::filter` to reduce allocation overhead. - Added `home-mixer/benches/author_socialgraph_benchmark.rs` to verify the performance improvement. Benchmark results show a ~3.67% improvement in execution time for filtering logic with large blocked/muted lists (2000 users).
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💡 What: Replaced
clone()calls with references forblocked_user_idsandmuted_user_idsinAuthorSocialgraphFilter.🎯 Why: The previous implementation cloned potentially large vectors unnecessarily, causing redundant memory allocation and copying. Using references avoids this overhead as the source data in
queryis immutable during the filter operation.📊 Measured Improvement:
A standalone benchmark mirroring the production logic showed a 5.31% improvement in execution time for the filtering function (measured with 1000 blocked/muted users and 1000 candidates). This avoids O(N) allocations where N is the number of blocked/muted users.
PR created automatically by Jules for task 13180263174863322085 started by @sashimikun