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Re: 5:10: Why is this slower than 5.8.8?by schwern (Scribe) |
on Dec 26, 2007 at 04:48 UTC ( [id://658998]=note: print w/replies, xml ) | Need Help?? |
This thread on p5p explains the problem. In short... For some reason the optimiser has decided that there are common elements on both sides, and that therefore a temporary copy of each element must be made. This is to handle cases like: ($a,$b) = ($b,$a); but is now slowing down the normal case. It was tracked back to this patch. Now that it's been nailed down there's a very good chance it'll be fixed in 5.10.1.
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