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Batch construct batches #282

Merged
merged 2 commits into from
Dec 31, 2017
Merged

Batch construct batches #282

merged 2 commits into from
Dec 31, 2017

Commits on Dec 31, 2017

  1. Use fixed preallocation instead of costly GetSerializeSize 

    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.
    @sipa @dgenr8
    sipa authored and dgenr8 committed Dec 31, 2017
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  2. Batch construct batches 

    Reuse the serialization buffers used for constructing the LevelDB
write batch. This avoids 2 allocations per utxo write.
    @sipa @dgenr8
    sipa authored and dgenr8 committed Dec 31, 2017
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