<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Thu, Jul 24, 2014 at 4:41 AM, Bert Freudenberg <span dir="ltr"><<a href="mailto:bert@freudenbergs.de" target="_blank">bert@freudenbergs.de</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">While working on my SqueakJS VM (which now can run a current 4.5 image) I'm discovering a lot of gross inefficiencies. I have no time (or much desire) to fix these, but would anybody think it's valuable if I post them here? For example:<br>
<br>
ScrollBar>>initializeSlider<br>
ScrollBar>>sliderColor:<br>
ScrollBar>>updateSliderColor:<br>
Color class>>gray:<br>
Color>>setRed:green:blue:<br>
Float>>rounded<br>
Float>>sign<br>
Float>>><br>
Number>>adaptToFloat:andCompare:<br>
Float>>asTrueFraction<br>
Integer>>bitOr:<br>
<br></blockquote><div><br></div><div>Oh man, we should _really_ take a look at those lower-level ones in the Number hierarchy. There could be some low-hanging cog-like-turbo-boost fruit lurking in there..</div><div><br>
</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
ctx[5]=rcvr: 3436915608L<br>
ctx[6]=tmp0: 16r10000000000000L<br>
ctx[7]=tmp1: nil<br>
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Converting a Float to an exact Fraction just to find out its sign seems very much unnecessary. And without the LargeInteger primitive support it also is really really slow.<br>
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My VM-level debugger makes it easy to stop at any time and look what's taking so long, so that's how I come across these.<br>
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- Bert -<br>
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