using `hdparm -W 0 [device]`).</p>
<ul>
    <li>For LevelDB, we set WriteOptions.sync = true.</li>
    <li>In TreeDB, we enabled TreeDB's OAUTOSYNC option.</li>
    <li>For SQLite3, we set "PRAGMA synchronous = FULL".</li>
</ul>
<h4>Sequential Writes</h4>
<table class="bn">
<tr><td class="c1">LevelDB</td>
    <td class="c2">100 ops/sec</td>
    <td class="c3"><div class="bldb" style="width:350px">&nbsp;</div></td>
    <td class="c4">(0.003x baseline)</td></tr>
<tr><td class="c1">Kyoto TreeDB</td>
    <td cl