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https://issues.apache.org/jira/browse/GROOVY-7873?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tadas Krivickas updated GROOVY-7873:
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Description:
Starting with 2.4.7, performance in string processing (in certain scenarios)
has decreased dramatically. Specifically, it happens when using
{{stripMargin()}} on a {{GString}} that has a variable substitution with a huge
String value. In our app performance decrease was from tens of miliseconds to
1+ minute.
I suspect the latest refactoring in string methods.
Attaching a test case.
{code}
R2D2:groovystrperf tadaskay$ /usr/local/Cellar/groovy/2.4.7/bin/groovy
test.groovy
Took 1456 ms
R2D2:groovystrperf tadaskay$ /usr/local/Cellar/groovy/2.4.5/bin/groovy
test.groovy
Took 43 ms
{code}
was:
Starting with 2.4.7, performance in string processing (in certain scenarios)
has decreased dramatically. In our app it was from tens ms to 1+ minute. I
suspect the latest refactoring in string methods.
Attaching a test case.
{code}
R2D2:groovystrperf tadaskay$ /usr/local/Cellar/groovy/2.4.7/bin/groovy
test.groovy
Took 1456 ms
R2D2:groovystrperf tadaskay$ /usr/local/Cellar/groovy/2.4.5/bin/groovy
test.groovy
Took 43 ms
{code}
> Regression performance issue in string methods
> ----------------------------------------------
>
> Key: GROOVY-7873
> URL: https://issues.apache.org/jira/browse/GROOVY-7873
> Project: Groovy
> Issue Type: Bug
> Affects Versions: 2.4.7
> Reporter: Tadas Krivickas
> Priority: Critical
> Attachments: test.groovy
>
>
> Starting with 2.4.7, performance in string processing (in certain scenarios)
> has decreased dramatically. Specifically, it happens when using
> {{stripMargin()}} on a {{GString}} that has a variable substitution with a
> huge String value. In our app performance decrease was from tens of
> miliseconds to 1+ minute.
> I suspect the latest refactoring in string methods.
> Attaching a test case.
> {code}
> R2D2:groovystrperf tadaskay$ /usr/local/Cellar/groovy/2.4.7/bin/groovy
> test.groovy
> Took 1456 ms
> R2D2:groovystrperf tadaskay$ /usr/local/Cellar/groovy/2.4.5/bin/groovy
> test.groovy
> Took 43 ms
> {code}
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