Hi Eliot,<br>AFAIK, VW does not use the nan trick, so it has to perform extra conversions on SmallDouble, doesn't it?<br><br>Nicolas<br><br><div class="gmail_quote">2009/3/16 Eliot Miranda <span dir="ltr"><<a href="mailto:eliot.miranda@gmail.com">eliot.miranda@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><br><br><div class="gmail_quote"><div>So the experience with my 64-bit VW implementation was that</div>
<div> - typical large symbolic benchmarks (e.g. all senders) were 15% to 20% slower in 64-bits than in 32-bits.</div><div> - immediate double arithmetic is about 3 times faster at about half the speed of immediate integer operations</div>
<div> - images are about 55% larger when converted from 32-bit to 64-bit</div><div><br></div><div><br></div><div>Eliot</div><div><br></div></div>
<br></blockquote></div><br>