-
由 sdong 提交于
Summary: DBIter now uses a std::string for saved_key. Based on some profiling, it could be more expensive than we though. Optimize it with the same technique as LookupKey -- if it is short, we copy it to a static allocated char. Otherwise, dynamically allocate memory for it. Test Plan: make all check Reviewers: haobo, ljin Reviewed By: haobo CC: dhruba, igor, yhchiang, leveldb Differential Revision: https://reviews.facebook.net/D17289
e0a87c4c