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Reuse the serialization buffers used for constructing the LevelDB write batch. This avoids 2 allocations per utxo write.
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ACK. (I tested this on the above mentioned other branch.) |
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Seems straightforward - code review ACK ed58969 |
laanwj
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Dec 14, 2016
| ssValue.reserve(DBWRAPPER_PREALLOC_VALUE_SIZE); | ||
| ssValue << value; | ||
| ssValue.Xor(dbwrapper_private::GetObfuscateKey(parent)); | ||
| leveldb::Slice slValue(&ssValue[0], ssValue.size()); |
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CDataStream should really get a .data(). Not necessarily here though :)
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Agree, but let's do that separately (#9353?).
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ACK ed58969 |
sipa
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Dec 16, 2016
ed58969 Batch construct batches (Pieter Wuille)
codablock
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Oct 23, 2017
ed58969 Batch construct batches (Pieter Wuille)
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Reuse the serialization buffers used for constructing the LevelDB write batch. This avoids 2 allocations per utxo write.
I have not benchmarked this exact change, but in another branch I'm working on it results in a 12% speedup for the flush.