use bitfields to enumerate sectors for winning post #2209
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magik6k
approved these changes
Jul 1, 2020
Stebalien
reviewed
Jul 1, 2020
| return nil, xerrors.Errorf("failed to load deadlines: %w", err) | ||
| } | ||
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| notProving, err := abi.BitFieldUnion(mas.Faults, mas.Recoveries) |
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note: this isn't necessary. Recoveries is a subset of Faults.
| if err != nil { | ||
| return nil, xerrors.Errorf("generating winning post challenges: %w", err) | ||
| } | ||
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| sectors, err := provingSectors.All(miner.SectorsMax) |
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If you update go-bitfield, you should be able to do this without expanding the bitset.
iter, err := provingSectors.BitIterator()
...
offset := 0
for i, n := range ids { // assuming the ids are sorted.
sid, err := iter.Nth(n-offset)
...
offset += n
}
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This function is currently the most expensive thing showing up in traces, this should help significantly.