slowdown in regex replacement #48630
Labels
performance
Must go faster
regression
Regression in behavior compared to a previous version
strings
"Strings!"
This regex benchmark from #40484 (comment):
on Julia 1.8.2 gives (on my x86_64 laptop):
but on
master
(1.10.0-DEV.551) gives:a 20% slowdown.
The other benchmark
@btime replace($s, "elephant"=>"grey", "giraffe"=>"yellow", "antelope"=>"brown", "lion"=>"gold", "cheetah"=>"yellow");
in that issue is actually 10% faster onmaster
, so it's not all bad news.cc @vtjnash
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