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[Merged by Bors] - Pack attestations into blocks in parallel #2307

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Proposed Changes

Use two instances of max cover when packing attestations into blocks: one for the previous epoch, and one for the current epoch. This reduces the amount of computation done by roughly half due to the O(n^2) running time of max cover (2 * (n/2)^2 = n^2/2). This should help alleviate some load on block proposal, particularly on Prater.

@michaelsproul michaelsproul added the ready-for-review The code is ready for review label Apr 13, 2021
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Looks good! I just had a question and a minor comment 🙏

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Thanks! Review comments addressed 🚀

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Bors it!

@michaelsproul michaelsproul added ready-for-merge This PR is ready to merge. and removed ready-for-review The code is ready for review labels Apr 13, 2021
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bors r+

bors bot pushed a commit that referenced this pull request Apr 13, 2021
## Proposed Changes

Use two instances of max cover when packing attestations into blocks: one for the previous epoch, and one for the current epoch. This reduces the amount of computation done by roughly half due to the `O(n^2)` running time of max cover (`2 * (n/2)^2 = n^2/2`). This should help alleviate some load on block proposal, particularly on Prater.
@bors bors bot changed the title Pack attestations into blocks in parallel [Merged by Bors] - Pack attestations into blocks in parallel Apr 13, 2021
@bors bors bot closed this Apr 13, 2021
@michaelsproul michaelsproul deleted the block-prop-parallel branch April 13, 2021 06:47
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