<div dir="ltr"><br><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Apr 23, 2014 at 5:00 AM, Blake McBride <span dir="ltr"><<a href="mailto:blake@mcbride.name" target="_blank">blake@mcbride.name</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"> <br><div dir="ltr">Let's see the timing with the two done in reverse order. OS cache could account for some of that difference.</div>
</blockquote><div> </div><div><div>McStalker.image$ time oscfvm CogVMMaker.image BuildSqueak45Image.st</div><div>real 2m31.703s</div><div>user 2m10.281s</div><div>sys 0m4.020s</div><div>McStalker.image$ time spurcfvm CogVMMaker-spur.image BuildSqueak45Image.st exactFitCompact fits: 771 misfits: 354821</div>
<div>real 1m35.447s</div><div>user 1m15.879s</div><div>sys 0m6.047s</div></div><div><br></div><div><br></div><div>Looks much the same. The Spur image is larger by 15% which could account for some of the sys difference.</div>
<div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div dir="ltr"><div>Blake McBride<br></div>
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On Tue, Apr 22, 2014 at 5:05 PM, Eliot Miranda <span dir="ltr"><<a href="mailto:eliot.miranda@gmail.com" target="_blank">eliot.miranda@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<br><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" target="_blank">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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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br>best,<div>Eliot</div>
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