 of increasing the number of items processed by a</span></div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;      <span class="comment">// single thread and reduces the impact of initialization overhead.</span></div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;      block_size = (block_size &lt; 128 ? block_size : 128);</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;    }</div><div class="line"><a name="l001