/table>

<p>SQLite's performance does not change substantially when compared to
the baseline, but the random write performance for both LevelDB and
TreeDB increases significantly.  LevelDB's performance improves
because a larger write buffer reduces the need to merge sorted files
(since it creates a smaller number of larger sorted files).  TreeDB's
performance goes up because the entire database is available in memory
for fast in-place updates.</p>

  <h2>3. Read Performance under Different Configurations</