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authorMarcoFalke <falke.marco@gmail.com>2017-08-16 01:28:35 +0200
committerMarcoFalke <falke.marco@gmail.com>2017-08-16 01:29:09 +0200
commit7db65c363a0cc6ca7cdb04de9a973ab70013baad (patch)
treebe97ced748fbfa4d89255469c16156c3042f82d3 /src
parent6366941275344dac7e2130b0c972e90117d37ed0 (diff)
parent08f71c29ea586f41d0ec3ba77f2366c41e861354 (diff)
Merge #11011: [Trivial] Add a comment on the use of prevector in script.
08f71c29e [Trivial] Add a comment on the use of prevector in script. (Gregory Maxwell) Pull request description: Tree-SHA512: 020981516e67e576685eb9a8532178fb97d1780af409fc86d869cd05c293c0c823c26e838cf544d18610f5a3f479ce3e47d2ccb95fb1c4e55fe9e7ceb354f20b
Diffstat (limited to 'src')
-rw-r--r--src/script/script.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/script/script.h b/src/script/script.h
index 711ffa97f8..587f2d26eb 100644
--- a/src/script/script.h
+++ b/src/script/script.h
@@ -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 */