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Id: 125974
Status: new
Priority: 0/
Queue: perl6

Owner: Nobody
Requestors: perl6 [at]

Severity: (no value)
Tag: (no value)
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To: rakudobug [...]
From: cdc <perl6 [...]>
Subject: [Perf] Closures in regex cost a lot of CPU cycles.
Date: Thu, 3 Sep 2015 14:42:18 +0200
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How to reproduce: time perl6 -e "say 'abcdef' ~~ /<{('a' ... 'z').list}>+/" 「abcdef」 Current result: real 0m4.455s user 0m4.203s sys 0m0.252s Expected result -- same as with: time perl6 -e "say 'abcdef' ~~ /:my @l = ('a' ... 'z').list; @l+/" 「abcdef」 real 0m0.382s user 0m0.289s sys 0m0.093s Note: this is not a bug, I just wonder if it's a LHF. Note 2: As of my understanding, the issue is not due to the + repeater.

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