<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">wow! impressive. <div><br></div><div>can’t wait to integrate that :)</div><div><br></div><div>Esteban</div><div><br><div><div>On 23 Apr 2014, at 00:05, Eliot Miranda <<a href="mailto:eliot.miranda@gmail.com">eliot.miranda@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr">Hi All,<div><br></div><div> I should write a blog post on this, but I can't wait...</div><div><br></div><div>In recent days I've written a script to build a Cog VMMaker image from Squeak 4.5. See <a href="http://www.squeakvm.org/svn/squeak/branches/Cog/image">http://www.squeakvm.org/svn/squeak/branches/Cog/image</a>. This has allowed me to run the current Cog VM against Spur side-to-side.</div>
<div><br></div><div>To build a Cog VMMaker image on my 2.2GHz Intel Core i7 MacBook Pro using the current Cog VM takes about 2 and a half minutes:</div><div><br></div><div><div>McStalker.image$ time oscfvm CogVMMaker.image BuildSqueak45Image.st </div>
<div>real 2m30.671s</div><div>user 2m15.683s</div><div>sys 0m5.283s</div><div><br></div><div>To build the equivalent image using Spur takes about 1 and a half minutes:</div><div><div>McStalker.image$ time spurcfvm CogVMMaker-spur.image BuildSqueak45Image.st </div>
<div>real 1m34.943s</div><div>user 1m23.666s</div><div>sys 0m6.810s</div></div><div><br></div><div>Comparing:</div><div><br></div><div><div>94.943 - 150.671 / 150.671 * 100 -36.99</div><div>83.666 - 135.681 / 135.681 * 100 -38.34</div>
<div>150.671 / 94.943 1.59</div><div>135.681 / 83.666 1.62</div></div><div><br></div><div>that's about a -37% speedup, or 1.6x faster.</div>-- <br>best,<div>Eliot</div>
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