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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (KARAF-5314) The performance of profile builder used by karaf maven plugin has reduced significantly in 4.1 compared to 4.0
Date Sun, 20 Aug 2017 10:16:03 GMT

    [ https://issues.apache.org/jira/browse/KARAF-5314?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16134366#comment-16134366
] 

ASF subversion and git services commented on KARAF-5314:
--------------------------------------------------------

Commit 0ed141dafd5ffb321bc851886e88457b616c1c06 in karaf's branch refs/heads/KARAF-5314-2
from [~chris@die-schneider.net]
[ https://git-wip-us.apache.org/repos/asf?p=karaf.git;h=0ed141d ]

[KARAF-5314] Extract addFeatures into class FeatureSelector


> The performance of profile builder used by karaf maven plugin has reduced significantly
in 4.1 compared to 4.0
> --------------------------------------------------------------------------------------------------------------
>
>                 Key: KARAF-5314
>                 URL: https://issues.apache.org/jira/browse/KARAF-5314
>             Project: Karaf
>          Issue Type: Bug
>            Reporter: Vinay Shankar
>             Fix For: 4.1.3
>
>
> The performance of profile builder used by karaf maven plugin has reduced significantly
in 4.1 compared to 4.0. 
> The java streams API is being used in 4.1 to filter our the required features from the
set of all features present in the repositories that are part of the profile. This is done
in the "addFeatures" method in the "Builder.java" class in the "org.apache.karaf.profile.core"
bundle. This change (from 4.0) has drastically reduced the performance. For a profile with
~900 features in all the repositories in the profile and ~300 required features from a highly
complex feature dependency tree, this function is taking around 13min to complete. The same
execution took around 3-5min in 4.0 (where simple for loops were being used). 



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