Dhruba Borthakur 197034e4c3 An iterator may automatically invoke reseeks. ...

Summary:
An iterator invokes reseek if the number of sequential skips over the
same userkey exceeds a configured number. This makes iter->Next()
faster (bacause of fewer key compares) if a large number of
adjacent internal keys in a table (sst or memtable) have the
same userkey.

Test Plan: Unit test DBTest.IterReseek.

Reviewers: emayanke, haobo, xjin

Reviewed By: xjin

CC: leveldb, xjin

Differential Revision: https://reviews.facebook.net/D11865

2013-09-06 11:50:53 -07:00

..

rocksdb

An iterator may automatically invoke reseeks.

2013-09-06 11:50:53 -07:00

utilities

Return pathname relative to db dir in LogFile and cleanup AppendSortedWalsOfType

2013-09-04 13:44:43 -07:00