Go Open 2008: Chris Di Bona, Fri programvare - vår viktigste utviklingsstrategi
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Google and Open Source GO OPEN oslo, norway Chris DiBona Tuesday, April 08, 2008
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Fri programvare er vår viktigste utviklingsstrategi. Av Chris DiBona, leder for satsning på fri programvare, Google
Transcript of Go Open 2008: Chris Di Bona, Fri programvare - vår viktigste utviklingsstrategi
Google and Open SourceGO OPEN oslo, norway
Chris DiBonaTuesday, April 08, 2008
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Who am I?
Open Source Programs Manager, Google Inc.
• License Compliance
• Code Release
• The Summer of Code
• Protocol and API Licensing
Formerly:
• Slashdot
• Co-Editor Open Sources & Open Source 2.0
Floss Weekly Podcast
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Agenda
Agendas destroy suspense.
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Current(ish) Design
• In-house rack design
• PC-class motherboards
• Low-end storage and networking hardware
• Linux
• + in-house software
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Pretty baby pictures, but what am I actually here to talk about?
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Open Source Software Use at Google.
But first, two things….
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Why do people release code at all?
A BCG/OSDN Study found that open source developers are motivated by:
• Intellectual Curiosity/Stimulation (44.9%)
• Skills Improvement (41.3%)
• Work needs (33.8 %)
• Open Source Idealism (33.1%)
• Non-Work Functionality (29.7%)
• Professional Status (17.5%)
• Reputation building within Open Source (11%)
• Dislike/distrust of proprietary software (11.1%)
http://osdn.com/bcg
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Understanding Intent
OSS Developers understand OSS licenses.
They know they are “giving away” their software.
They know people will use it.
The vast majority expect nothing for the work.
If they did, they’d just do it as a commercial offering.
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How does Google use Open Source?
As Infrastructure
• Linux kernel
• Apache Tomcat and many other Apache tools
• SSH, and other system management tools
• The Languages and compilers that we use.
• Engineers and others running Linux (Goobuntu)
As building blocks
• Our repositories have hundreds of libraries used in Google software
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For our Platforms
Google Web Toolkit (Ajax toolkit for Java developers)
Android (Cell Phone operating system)
Google Gears (offline web)
Google Applications
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But Why does Google use Open Source
Control and Ownership
• Maintain our independence from external software companies
Adaptability and Flexibility
• We can drill down to repair and enhance our services
• If we want to do something out of the ordinary, we can do so without showing our hand
• No one is incentivized to hurt us
Roots
• Appeals to the Google ethic
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How does Google take part?
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Google’s Open Source Programs
Patching and Code Release
Donations
Internal License Discipline
API/Protocol License Discipline
Industry Trade Group Participation
Open Source Infrastructure & Leadership
Summer of Code
OLPC Engineering
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Code Release
Over a million lines of code released to date
Examples:
• Airbag Crash Reporting
• MySQL Replication Tools
• MacFuse (userspace filesystems under OS X)
• Google Web Toolkit
• Approaching 100 released packages: Search for label:Google on http://code.google.com/hosting/
• Updates for older releases like gflags, sparcehash, tcmalloc, etc..
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Open Source Infrastructure
Hosting on Google Code which provides:
• Reliable, scalable, clean project Hosting
• Version Control
• Issue/Bug Tracking
• Wikis
Over 85k projects of projects, now the 2nd
Largest Repository Online
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Patching
Hundreds of Googlers patching into projects such as…
The Linux Kernel Apache Tomcat and Axis The Gnu Compiler Collection
Subversion
Python
Perl MySQL SSH/OpenSSL EclipseEmacs
Vim
Gaim Adium
ICU Wine Derby Aspell DSpace Glib
Autoconf/automake
Make
GlibcBinutils
Java
Samba
Various Emulators
And Many More…
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Open Source Developers…
Andrew Morton
• 2.6 Kernel Maintainer
Guido Van Rossum
• Python BDFL
Bram Molenaar
• Vim creator and maintainer
Jeremy Allison
• Samba Lead Developer
And more.......
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The Summer Of Code, 2007
905 students
130 Organizations
Over 1500 Mentors
6200 applications
90 Countries
81% pass rate!
Over 2.3 millions lines of code
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How it Works
1) Student applies to work on a project for, say, the ASF
2) ASF mentors review the application and accept the student
3) Google pays student $500 for being accepted
4) Student works with an ASF mentor to create project
5) Mid-Term, good students are paid $2000 by Google
6) Student continues work with mentor to create project
7) Final: If the student has completed the goals set forth in the application and student is paid $2000 by Google
8) Successful student gets t-shirt, certificate and valuable experience along with the money.
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The Applicants
United States
Germany Canada United Kingdom
India Brazil France Poland Spain China
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40
60
80
100
120
140
160
180
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GSoc 2006 Geographic Distribution: Accepted Students (Top 10 Countries)
Country of Residence
# S
tud
en
ts
Students Per CountryMin: 1Max: 178Sum: 630Mean: 10.68Median: 3
24.26Stdev:
Student Educational Distribution
undergrad masters phd0
50
100
150
200
250
300
350
400
450
GSoc 2006 Student Level Distribution
Degree Level
# S
tud
en
ts
2006 2007 2008 2009 2010 2011 2012 20130
25
50
75
100
125
150
175
200
225
250
GSoc 2006 Expected Graduation Year
Year
# S
tud
en
ts
Average graduation year: 2007 Undergraduates most common participants
Not Just Computer Scientists
Mechanical Engineering
English Literature
Interior Design
Urban Planning
Astronomy
Cartography
Genetics
Developmental Psychology
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Why do we do all this funding?
Keep students coding
• Flip Bits, not Burgers
Ensure a healthy open source ecosystem
• Good for the Internet
• Good for Google
A great way to meet students all over the world
A great way for open source organizations to grow and thrive.
A lot of Googlers come from the Open Source World
Giving Back
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The Summer Of Code, 2008
1100 students
175 Organizations
Over 5000 applications (so far)
Target: 3 million lines of code
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Backup Slides Follow
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Backup Slides Follow
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Backup Slides Follow
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The Applicants
United States
India Canada France Germany United Kingdom
Russian Federation
Poland Brazil Spain
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100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
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Applications Per Country (Top 10 Countries)
# A
pp
lica
tion
s
Applicants Per CountryMin: 1Max: 1587Sum: 6338Mean: 70.42Median: 19.5
183.03Stdev:
