<br><br><div class="gmail_quote">On Sat, May 7, 2011 at 4:15 PM, Andreas Raab <span dir="ltr"><<a href="mailto:andreas.raab@gmx.de">andreas.raab@gmx.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
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On 5/7/2011 9:25, Tobias Pape wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
No. It does /not/ need to be fixed. As I said earlier it is *absurd* to throw away performance for the ability to change certain classes to become uncompact.<br>
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When it worked in pre-cog VMs, why should it break in Cog?<br>
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Because Cog is all about performance. And there's a big performance difference for some classes when they are changed to be non-compact </blockquote><div><br>I don't understand that sentence. If I change a class to be non-compact, how it can have worst performance? wouldn't it be faster since you don't pay the indirection? (the if you pay it always).<br>
<br>you said "some classes". Could you give an example?<br><br>Thanks for the clarification.<br><br>Mariano<br><br> </div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
and Eliot didn't want to add the complexity it would take to support both a fast compact, and a slow non-compact version of the code. Therefore, some classes cannot be made non-compact in Cog, and that is a perfectly good tradeoff. If you really need these classes to be non-compact (please remind me why exactly that would matter to you) then use the interpreter. In order to get performance some trade-offs are necessary and this is one of them.<br>
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Cheers,<br><font color="#888888">
- Andreas<br>
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</font></blockquote></div><br><br clear="all"><br>-- <br>Mariano<br><a href="http://marianopeck.wordpress.com" target="_blank">http://marianopeck.wordpress.com</a><br><br>