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https://issues.apache.org/jira/browse/SUREFIRE-1516?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tibor Digana reassigned SUREFIRE-1516:
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Assignee: Tibor Digana
> Should surefire specialize test runner when test isolation (i.e., fork) is
> needed?
> ----------------------------------------------------------------------------------
>
> Key: SUREFIRE-1516
> URL: https://issues.apache.org/jira/browse/SUREFIRE-1516
> Project: Maven Surefire
> Issue Type: New Feature
> Components: Maven Surefire Plugin
> Affects Versions: 2.21.0
> Reporter: Fork Script
> Assignee: Tibor Digana
> Priority: Major
> Fix For: 3.0.0-M5, 3.0.0-M6, 3.0
>
>
> We observed that {code:java} mvn test -DforkCount=1 -DreuseForks=false {code}
> has high overhead for several projects we recently used.
> We developed a specific runner for this option, which reduces test execution
> time by 49% on average. (Please see detailed results in the table below.)
> [Here|https://github.com/forkscript/maven-surefire/commit/38f102f0165f081dd28c6a3023e0b052662857f0]
> is a link to our commit (see ForkStarter.java:388). Our approach is hackish,
> but we believe it can be engineered better if needed. Is this of interest to
> surefire? We would be happy to discuss this further and provide more results.
> Detailed results are below. Machine we used: Intel i7-6700U CPU @ 3.40GHz
> with 16GB of RAM, running Ubuntu 17.10. We can share our script used to
> collect the numbers.
> || project || maven current (sec) || maven with our hack (sec) || time
> reduced by ||
> | activiti | 1300.54 | 1069.20 | 17% |
> | bukkit | 18.98 | 4.80 | 74% |
> | closurecompiler | 399.42 | 271.68 | 31% |
> | commonscodec | 46.98 | 13.85 | 70% |
> | commonsio | 107.35 | 67.41 | 37% |
> | commonslang | 89.70 | 35.39 | 60% |
> | commonsmath | 391.20 | 110.79 | 71% |
> | commonsnet | 74.50 | 59.46 | 20% |
> | commonsvalidator | 37.30 | 13.24 | 64% |
> | configuration | 126.73 | 62.37 | 50% |
> | crypto | 23.75 | 7.14 | 69% |
> | gedcom4j | 195.43 | 64.10 | 67% |
> | graphhopper | 90.80 | 41.25 | 54% |
> | jaxx | 36.00 | 23.33 | 35% |
> | la4j | 15.23 | 7.60 | 50% |
> | openfire | 28.52 | 18.51 | 35% |
> | retrofit | 53.22 | 35.36 | 33% |
> | scribejava | 13.35 | 4.32 | 67% |
> | vectorz | 37.90 | 11.19 | 70% |
> | ztexec | 23.94 | 17.75 | 25% |
> | Avg. | 155.54 | 96.93 | 49% |
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