c6275956e2
Summary: When creating a new iterator, instead of storing mapping from key to bucket id for sorting, store only bucket id and read key from mmap file based on the id. This reduces from 20 bytes per entry to only 4 bytes. Test Plan: db_bench Reviewers: igor, yhchiang, sdong Reviewed By: sdong Subscribers: leveldb Differential Revision: https://reviews.facebook.net/D23757 |
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rocksdb | ||
utilities |