ow
since synchronous writes behave significantly differently
on <code>ext3</code> and <code>ext4</code>.</p>

<h3>D. Turning Compression Off</h3>

<p>In the baseline measurements, LevelDB and TreeDB were using
light-weight compression
(<a href="http://code.google.com/p/snappy/">Snappy</a> for LevelDB,
and <a href="http://www.oberhumer.com/opensource/lzo/">LZO</a> for
TreeDB). SQLite3, by default does not use compression.  The
experiments below show what happens when compression is disabled in
all of the dat