Re^2: Unexplained benchmark when using chop vs. chomp (or neither)


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Re^2: Unexplained benchmark when using chop vs. chomp (or neither)

by choroba (Cardinal)

on Mar 08, 2018 at 09:37 UTC ( [id://1210504]=note: print w/replies, xml )

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in reply to Re: Unexplained benchmark when using chop vs. chomp (or neither)
in thread Unexplained benchmark when using chop vs. chomp (or neither)

Note that both chop and chomp can take an array as the argument. Interestingly,

chop @copy;
[download]

makes mychomp and mychop just as fast as nada.

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,
[download]

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Re^3: Unexplained benchmark when using chop vs. chomp (or neither)
by davido (Cardinal) on Mar 08, 2018 at 17:09 UTC

Yes, I had considered setting up alternatives that pass an array to chomp and chop, but figured it wasn't going to be a very useful comparison for this specific situation. But absolutely, pushing the loop into internals is going to be a lot faster. In fact it wouldn't have surprised me if you had said that the array version was even faster than the 'nada' version, since the 'nada' version still has a loop, unless it's been optimized away, which I'm not sure on.

Dave

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