Batch construct batches #282
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This was referenced Dec 18, 2017
Dbwrapper used GetSerializeSize() to compute the size of the buffer to preallocate. For some cases (specifically: CCoins) this requires a costly compression call. Avoid this by just using fixed size preallocations instead.
Reuse the serialization buffers used for constructing the LevelDB write batch. This avoids 2 allocations per utxo write.
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Dec 31, 2017
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bitcoin/bitcoin#9346
Also includes commit d59a518 from bitcoin/bitcoin#9039
Build on top of #276