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Merge #11011: [Trivial] Add a comment on the use of prevector in script.

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08f71c29e [Trivial] Add a comment on the use of prevector in script. (Gregory Maxwell)

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Tree-SHA512: 020981516e67e576685eb9a8532178fb97d1780af409fc86d869cd05c293c0c823c26e838cf544d18610f5a3f479ce3e47d2ccb95fb1c4e55fe9e7ceb354f20b
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MarcoFalke 2017-08-16 01:28:35 +02:00
commit 7db65c363a
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6
src/script/script.h
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@ -377,6 +377,12 @@ private:
int64_t m_value;
};
/**
* We use a prevector for the script to reduce the considerable memory overhead
* of vectors in cases where they normally contain a small number of small elements.
* Tests in October 2015 showed use of this reduced dbcache memory usage by 23%
* and made an initial sync 13% faster.
*/
typedef prevector<28, unsigned char> CScriptBase;
/** Serialized script, used inside transaction inputs and outputs */