Chris-DiBona-The Open Source Revolution
Transcript of Chris-DiBona-The Open Source Revolution
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Who Am I?
Open Source Programs Manager, Google Inc.
License Compliance
Code Release
The Summer of Code & Google Code-In
Protocol, specification and API Licensing
Public Sector: Google Moderator
Polling Locations API
Also and Formerly:Slashdot, Co-Editor Open Sources & Open Source 2.0,Floss Weekly Podcast,
TechTV, Cranky Geeks.
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Agenda
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Me
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Then Your Questions
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A Bit About Open Source
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License Use Across 31m Crawled Files
FLOSS License De Duped Files Percentage
GPL 14,851,615 47.06%
LGPL 7,145,795 22.64%
BSD 4,245,335 13.45%
Apache 1,778,692 5.64%
MIT 1,565,673 4.96%
Mozilla 567,604 1.80%
Perl 333,829 1.06%
QPL 206,085 0.65%
Artistic 150,555 0.48%
CPL 144,128 0.46%
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Amounting to >2 billion lines of code.License Use
GPL
48%
LGPL
23%
BSD
14%
Apache
6%
MIT
5%
Mozilla
2%
Perl
1%
QPL
1%
Artistic
0%
CPL
0%
Other
5%
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Why do people release code at all?
A BCG/OSDN Study found that open source developers aremotivated 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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Implications:
OSS Developers understand OSS licenses.
They know they are giving away their software.
They know and hope people will use it.
The majority expect no more $$$ for the work.
If they did, theyd just do it as a commercial offering, if they
can. Which is pretty remarkable.
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Open Source Software Use
at Google
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What is Google
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In-house rack design
PC-class motherboards Low-end, large size storage and
networking hardware
Running Linux + in-housesoftware
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How does Google use Open Source?
As Infrastructure
Linux kernel
Many Apache Project 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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But Why does Google use Open Source
Control and Ownership
Maintain our independence from external softwarecompanies
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 sowithout 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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Googles Open Source Programs
Patching and Code Release
Internal License DisciplineAPI/Protocol License Discipline
Open Source Infrastructure & LeadershipSummer of Code
Donations/FundingIndustry Trade Group Participation
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We release open source code
We Patch into hundreds of projects each month
Strategically important
Helps the internet grow fairly.
~900 projects to date.*
API Examples
Dev Tools
Linker Build/test
Memory and thread management
Plugins for eclipse
DVCS patches.
Infrastructure
Approximately 18m lines of code released
*See Label:Google on http://code.google.com/p
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Patch Targets Include
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The Linux KernelApache Tomcat and AxisThe Gnu Compiler Collection
SubversionPython
PerlMySQL
SSH/OpenSSLEclipse
Emacs
Vim
GaimAdium
ICUWineDerby
AspellDSpaceGlib
Autoconf/automake
MakeGlibc
Binutils
Java
Samba
Various Emulators
And Many More
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Major Projects: Chromium
What is it: A browser
What license: Mostly BSD (some lgpl)
What does it do?
Incredibly Fast
Safe, smart, sandboxing Multiple processes/tab.
Implements HTML5
Offline, Worker pools, Geo-location, File uploading Desktop like experiences inside the browser
ChromiumOS, (demostration)
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Major Projects: Android
What is it: Full cell phone OS.
What license: Apache + Linux Kernel
What does it do?
Raises the minimum bar for smart phone os
Allows for a solid web experience Allow for multiple applications to co-exist.
Provides a smart app marketplace.
Makes cell phone development a snap. >250,000 devices sold worldwide across many carriers
per day.
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WebM/WebP
What it is: WebM is an open, royalty-free, media file formatdesigned for the web.
Vorbis Audio
Vp8 video
In a matroska-like container
Very high quality
Releasing in a very open source way.
Bsd licensed
Patents granted freely, no fees required.
Our goal is to get html5 to recognize webm as a standardcodec for web video/audio.
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What is VP8
A Transform based codec based on the same basicparadigm as its main rivals. But the devil, as always, is inthe detail.
Based on VP7 (as used in Skype) but with many newfeatures.
Top flight compression performance but lower underlyingcomputational complexity than its main competitors (even
than VP7). Designed with multi-core and custom silicon devices in
mind.
Extensive use of char math to maximize the benefits fromSIMD.
Support for pseudo-SIMD even on processors with no
dedicated SIMD instructions.
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Some Longer Term Engineering Goals
20% improvement fixed quality
75% improvement to encoder speed
50% improvement to decode speed on windows
Implemented in Google-Talk
Implemented in make the web faster project - Images?
Hardware Support Support in 50% of all external apps that use video.
Improved Feature Set like Scalability
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Free
Open Source (BSD)
OSS Patent Grant compatible with gplv2/3, bsd, apache, etc..
Open Specification
Free and Open source High Quality Implementations
Free and Open Source Compression / Decompression Toolsand Applications
Free and Open Test streams and Automated test tools
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The Summer Of Code, 2010
1049 students
150 Organizations
Over 2000 Mentors
>6000 applications
94 Countries
81% pass rate!
~3 million lines of code in 2009 alone
(~13m since 2005)
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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 $2250 by Google
6) Student continues work with mentor to create project
7) Final: If the student has completed the goals set forth in theapplication and student is paid $2250 by Google
8) Successful student gets t-shirt, certificate and valuable experience
along with the money.
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The End
Questions?
http://code.google.com/opensource