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Comparing Popular EclipseDevelopment ProjectsBill McQuaideEVP Products and StrategyBlack Duck Software
About Black Duck SoftwareBuild better software faster by automating and managing the          acquisition and governance o...
Agenda ohloh Comparing popular Eclipse & Java projects Comparing Eclipse projects Summary                  Copyright ©...
 Free FOSS directory & developer community www.ohloh.net                                            (Forge, repository a...
Analysis of languages found in open source software          Total lines of Java found in open source                     ...
Compare Projects               Copyright © 2011 Black Duck Software, Inc. All Rights Reserved.
Eclipse Platform Project                 Copyright © 2011 Black Duck Software, Inc. All Rights Reserved.   7
Copyright © 2011 Black Duck Software, Inc. All Rights Reserved.
Copyright © 2011 Black Duck Software, Inc. All Rights Reserved.
Adding Quality Data to ohloh                Copyright © 2011 Black Duck Software, Inc. All Rights Reserved.
Agenda Ohloh Comparing popular Eclipse & Java projects Comparing Eclipse projects Summary                  Copyright ©...
Comparing Popular Eclipse & Java Projects Benchmark for comparisons  – Top 100 Java projects on ohloh measured by # of us...
Agenda ohloh Comparing popular Eclipse & Java projects Comparing Eclipse projects Summary                  Copyright ©...
Comparing Top 20 Eclipse Projects (users)Rank (Users) Eclipse Project Name           1 Eclipse Platform Project           ...
# of Committers Average is 48, three large projects (>100 committers)  Rank  (Users) Eclipse Project Name                ...
Commits vs Committers Strong positive correlation of commits with # of  committers (CC= 0.97)Rank(Users) Eclipse Project ...
LoC vs # of Committers Hypothesis: LoC in a project increases with # of  committers Good correlation between # of Commit...
LoC/Commit vs # of Committers Hypothesis: as # of Committers increases, LoC/Commit  decreases Low negative correlation b...
Comparing Eclipse Projects Over Time                  Eclipse Platform           Eclipse Web Tools              Eclipse Ja...
Summary Eclipse projects range in number of committers (5  to 177) based on functionality Eclipse projects are more acti...
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Comparing Popular Eclipse Development Projects

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Ohloh.net allows you to compare projects in a detailed side-by-side view, giving you the information you need to decide which open source project is right for your needs.

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  • Adding analysis for many common indicators of code qualityLines of code, # of classes/packages => overall project complexityLines of Code to comment ration => ease of consumption; maintainabilityUnit test coverage => project qualityCode quality => project quality; maintainabilityCode complexity => project maintainability
  • When projects begin small teams write most of the codeAs projects grow new committers are added but maybe working on bug fixes or smaller bit of functionality
  • As project grows many people join slowing down the original teamAs project matures some of the original team move on.
  • Transcript of "Comparing Popular Eclipse Development Projects"

    1. 1. Comparing Popular EclipseDevelopment ProjectsBill McQuaideEVP Products and StrategyBlack Duck Software
    2. 2. About Black Duck SoftwareBuild better software faster by automating and managing the acquisition and governance of open source OSS info, e.g. GitHub, Maven, … KnowledgeBase Governance Acquire Approve Catalog Validate Monitor Plan Code Build Test Release Copyright © 2011 Black Duck Software, Inc. All Rights Reserved.
    3. 3. Agenda ohloh Comparing popular Eclipse & Java projects Comparing Eclipse projects Summary Copyright © 2011 Black Duck Software, Inc. All Rights Reserved. 3
    4. 4.  Free FOSS directory & developer community www.ohloh.net (Forge, repository and language neutral)Copyright © 2011 Black Duck Software, Inc. All Rights Reserved. 4
    5. 5. Analysis of languages found in open source software Total lines of Java found in open source See who contributes to open source Copyright © 2011 Black Duck Software, Inc. All Rights Reserved.
    6. 6. Compare Projects Copyright © 2011 Black Duck Software, Inc. All Rights Reserved.
    7. 7. Eclipse Platform Project Copyright © 2011 Black Duck Software, Inc. All Rights Reserved. 7
    8. 8. Copyright © 2011 Black Duck Software, Inc. All Rights Reserved.
    9. 9. Copyright © 2011 Black Duck Software, Inc. All Rights Reserved.
    10. 10. Adding Quality Data to ohloh Copyright © 2011 Black Duck Software, Inc. All Rights Reserved.
    11. 11. Agenda Ohloh Comparing popular Eclipse & Java projects Comparing Eclipse projects Summary Copyright © 2011 Black Duck Software, Inc. All Rights Reserved. 11
    12. 12. Comparing Popular Eclipse & Java Projects Benchmark for comparisons – Top 100 Java projects on ohloh measured by # of users – Top 20 Eclipse projects on ohloh measured by # of users Commits LOC Comitters LOC/Commit LOC/Committer Comment %Top 20 Eclipse Projects 15,355 1,162,697 48 76 24,223 29%Top 100 Java Projects 9,550 1,264,440 52 132 24,316 33% Popular Eclipse projects compared to Java projects: – More commits with fewer committers – LoC per commit are lower reflecting more frequent commits – Average in LOC/committer – Below average in comment line % of Total LOC Copyright © 2011 Black Duck Software, Inc. All Rights Reserved. 12
    13. 13. Agenda ohloh Comparing popular Eclipse & Java projects Comparing Eclipse projects Summary Copyright © 2011 Black Duck Software, Inc. All Rights Reserved. 13
    14. 14. Comparing Top 20 Eclipse Projects (users)Rank (Users) Eclipse Project Name 1 Eclipse Platform Project 2 Subclipse 3 Eclipse Java Development Tools (JDT) 4 Eclipse Web Tools Platform (WTP) 5 Eclipse PDT 6 Eclipse Mylyn 7 Maven Integration for Eclipse 8 Eclipse Ant Plugin 9 CDT (Eclipse) 10 Eclipse Checkstyle Plugin 11 Eclipse BIRT 12 MercurialEclipse 13 Eclipse DLTK - Dynamic Languages Toolkit 14 EPIC - Eclipse Perl Integration 15 CFEclipse 16 Eclipse Communication Framework 17 TestNG-Eclipse 18 EclipseLink 19 Eclipse Scout 20 Acceleo - Eclipse Copyright © 2011 Black Duck Software, Inc. All Rights Reserved. 14
    15. 15. # of Committers Average is 48, three large projects (>100 committers) Rank (Users) Eclipse Project Name Committers 1 Eclipse Platform Project 177 2 Subclipse 24 3 Eclipse Java Development Tools (JDT) 173 4 Eclipse Web Tools Platform (WTP) 115 Committers 5 Eclipse PDT 23 200 6 Eclipse Mylyn 46 180 7 Maven Integration for Eclipse 13 160 8 Eclipse Ant Plugin 23 140 9 CDT (Eclipse) 72 120 10 Eclipse Checkstyle Plugin 6 100 11 Eclipse BIRT 82 80 12 MercurialEclipse 69 60 13 Eclipse DLTK - Dynamic Languages Toolkit 15 40 14 EPIC - Eclipse Perl Integration 9 20 15 CFEclipse 12 0 16 Eclipse Communication Framework 42 0 5 10 15 20 17 TestNG-Eclipse 8 18 EclipseLink 34 19 Eclipse Scout 9 20 Acceleo - Eclipse 5 Copyright © 2011 Black Duck Software, Inc. All Rights Reserved. 15
    16. 16. Commits vs Committers Strong positive correlation of commits with # of committers (CC= 0.97)Rank(Users) Eclipse Project Name Committers Commits 1 Eclipse Platform Project 177 76820 2 Subclipse 24 3703 3 Eclipse Java Development Tools (JDT) 173 75552 Commits 4 Eclipse Web Tools Platform (WTP) 115 38780 90000 5 Eclipse PDT 23 6314 80000 6 Eclipse Mylyn 46 15525 70000 7 Maven Integration for Eclipse 13 974 8 Eclipse Ant Plugin 23 5479 60000 9 CDT (Eclipse) 72 20448 50000 10 Eclipse Checkstyle Plugin 6 835 40000 11 Eclipse BIRT 82 26877 30000 12 MercurialEclipse 69 3110 20000 13 Eclipse DLTK - Dynamic Languages Toolkit 15 8470 10000 14 EPIC - Eclipse Perl Integration 9 1674 0 15 CFEclipse 12 710 0 50 100 150 200 16 Eclipse Communication Framework 42 11275 17 TestNG-Eclipse 8 437 18 EclipseLink 34 7238 19 Eclipse Scout 9 930 20 Acceleo - Eclipse 5 1951 Copyright © 2011 Black Duck Software, Inc. All Rights Reserved. 16
    17. 17. LoC vs # of Committers Hypothesis: LoC in a project increases with # of committers Good correlation between # of Committers and LoC in a project (CC = 0.67) Eclipse Project Name Committers LoC Eclipse Platform Project 177 1879306 Subclipse 24 93022 Eclipse Java Development Tools (JDT) 173 1991627 Eclipse Web Tools Platform (WTP) 115 5339222 LoC vs. Committers Eclipse PDT 23 250291 6000000 Eclipse Mylyn 46 305913 Maven Integration for Eclipse 13 76837 5000000 Eclipse Ant Plugin 23 44454 4000000 CDT (Eclipse) 72 1057602 Eclipse Checkstyle Plugin 6 44886 3000000 Eclipse BIRT 82 1415398 MercurialEclipse 69 52591 2000000 Eclipse DLTK - Dynamic Languages Toolkit 15 683368 1000000 EPIC - Eclipse Perl Integration 9 77558 CFEclipse 12 89971 0 Eclipse Communication Framework 42 514393 0 50 100 150 200 TestNG-Eclipse 8 21937 EclipseLink 34 1394565 Eclipse Scout 9 298007 Acceleo - Eclipse 5 138365 Copyright © 2011 Black Duck Software, Inc. All Rights Reserved. 17
    18. 18. LoC/Commit vs # of Committers Hypothesis: as # of Committers increases, LoC/Commit decreases Low negative correlation between the two (CC = -0.24)Eclipse Project Name LoC/Commit CommittersEclipse Platform Project 24 177Subclipse 25 24Eclipse Java Development Tools (JDT) 26 173Eclipse Web Tools Platform (WTP) 138 115Eclipse PDT 40 23 LoC/Commit vs CommittersEclipse Mylyn 20 46 200Maven Integration for Eclipse 79 13 180Eclipse Ant Plugin 8 23 160CDT (Eclipse) 52 72 140Eclipse Checkstyle Plugin 54 6 120Eclipse BIRT 53 82 100MercurialEclipse 17 69 80Eclipse DLTK - Dynamic Languages Toolkit 81 15 60EPIC - Eclipse Perl Integration 46 9 40CFEclipse 127 12 20Eclipse Communication Framework 46 42 0TestNG-Eclipse 50 8 0 50 100 150 200 250 300 350EclipseLink 193 34Eclipse Scout 320 9Acceleo - Eclipse 71 5 Copyright © 2011 Black Duck Software, Inc. All Rights Reserved. 18
    19. 19. Comparing Eclipse Projects Over Time Eclipse Platform Eclipse Web Tools Eclipse Java Dev Eclipse C/C++ Dev Eclipse Eclipse DLTK - Eclipse PHP Dev Project Platform (WTP) Tools (JDT) Tools (CDT) BIRT Dynamic Tools (PDT) LangsAll Time / TotalCommitters 177 115 173 73 82 15 23Committs 76,820 38,780 75,559 20,457 26,877 8,470 6,325Total Lines of Code 2,178,652 10,315,143 2,135,364 1,207,765 2,147,714 742,831 266,416Age ~10 years ~ 8 years ~ 10 years ~9 years ~7 years ~4 years ~5 years12 Month ActivityCommitters 49 54 46 45 23 6 430 Day ActivityCommitters 19 23 23 13 No data 3 3Commits 92 192 185 93 No data 59 30Files Modified 137 954 319 442 No data 259 32Lines Added 1,693 33,242 12,505 8,497 No data 3,193 806Lines Removed 634 11,133 4,085 4,445 No data 1,509 242 Copyright © 2011 Black Duck Software, Inc. All Rights Reserved. 19
    20. 20. Summary Eclipse projects range in number of committers (5 to 177) based on functionality Eclipse projects are more active (commits) than Java projects, but have fewer committers Eclipse projects are average in LoC, LoC/Committer, and below average in LoC/commit & comment % Ohloh is a free, versatile resource – Use it to run analyses that are meaningful to you – Make sure your profile is up to date and all your projects are registered – If you are not an Ohloh user, consider registering Copyright © 2011 Black Duck Software, Inc. All Rights Reserved.
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