Always have everything proven to work

Always have everything
proven to work

November 27, 2013

Daniel Stenberg
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Free Software

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Network hacker

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Embedded developer

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Blabbermouth
Email:
Twitter:
Web:
Blog:

daniel@haxx.se
@bagder
daniel.haxx.se
daniel.haxx.se/blog

Agenda
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Some trends in software and open source
backed by some data
How it looks like out there
What's important to take from this and what
it means for you and me
What the future holds

Feel free to interrupt
Object, ask, comment when you
feel like it.

What's happening now?
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More of everything!

More devices with CPUs
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Printers

●

TVs

●

Settop boxes

●

Cars

●

Phones and tablets

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Fridges, toasters and washing machines?

●

CPUs are cheap and capable enough

●

When I was young ...

Devices with CPUs
many

0
1993

2013

More CPUs with software
●

More full fledged CPUs

●

More Linux on your average CPU

●

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More “common” software in
CPUs
37 billion ARM chips, “a million
PCs a day” ...

32 bit processors sold
many

0
1993

2013

MIPS per die
many

0
1993

2013

http://www.r-bloggers.com/cpu-and-gpu-trends-over-time/

More software is open
source
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Embedded OS: 2 to 1

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Linux is defacto by chip vendors

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Internet servers

●

Phones, Routers, Printers, Tvs and
cars

The future is open source
2009 26% believed more than 50%
of purchased software will be open
source within 5 years
2013 – 62% believes more than 50%
of purchased software will be open
source within 5 years
The 2013 Future of Open Source Survey Results – Black duck

Open source adoption
many

0
1993

2013

More open source
●

●

The term coined 1998
Number of projects virtually
doubled every year since

More open source
projects
many

0
1993

2013

http://dirkriehle.com/publications/2008-2/the-total-growth-of-open-source/

More open source
projects

http://dirkriehle.com/publications/2008-2/the-total-growth-of-open-source/

Software grows bigger
… and do so very fast

Bigger software: Linux
●

Unix 1.0 (1971) 10,000 lines

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Linux 2.2 (1999): 2 million lines

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Linux 2.6.0: 5 million lines

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Linux 3.1: 15 million lines

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Linux 3.12: 20 million lines

http://www.informationisbeautiful.net/visualizations/million-lines-of-code/

Other big software
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Eclipse: 20 MLOC

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Firefox: 9 MLOC

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Android: 12 MLOC

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Chrome: 7 MLOC

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MySQL: 12 MLOC

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GCC: 7 MLOC

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PHP: 2 MLOC

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glibc: 1 MLOC

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Mac OS X “Tiger” : 85 MLOC

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Windows Vista: 50 MLOC

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Facebook: 61 MLOC

Lines of source code
many

0
1993

2013

More releases over time
●

●

Producers and users want tighter
release cycles
Switch hardware platform more
often

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Use more commodity hardware

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Increase code reuse

Release frequency
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Linux kernel, every 9 weeks

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Firefox, every 6 weeks

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Chrome, every 6 weeks
“We're going to be getting new versions of Windows,
we're told, about every 12 to 18 months or so (the
number varies a bit depending on the source),
instead of every three to five years.”

New products per time
many

0
1993

2013

More

●

More devices with CPUs

●

More CPUs per device

●

More CPUs with software

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More software is open source

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Bigger software

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More releases per time

Tomorrow...
Most of these trends are ongoing
with no signs of slowing down...

Coping
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Make sure the code is always
good

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Lower thresholds for releasing

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Release even more often

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Use and do open source

The 2013 Future of Open Source Survey Results – Black duck

The most important factor
for OSS adoption

Quality in an age of
speed
Nonstop automatic testing
Maintain quality
Be able to release often

Even crosscompiled
On a fully crosscompiled linux
distro, “make test” isn't straight
forward
Ptest – is one way to fix this. For
Yocto / OpenEmbedded

Daily snapshots and git
Kids today wants the latest now.
Give it to them or get replaced.

Let problems be known
●

Alert on IRC

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Email the proper people

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Show status on web sites

Fix problems at once
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Be able to release soon

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Users will get and use the latest

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Others will push out their changes
soon and they need to be tested
and must not be blocked by your
bugs!

Summing up
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Everything is happening more and faster
than ever
Software and open source are bigger
than before and are growing more
People want the latest immdiately after
changes have been pushed
Test your stuff to keep the users.
Automatic testing is the only viable
option.

Thank you!
Questions?
daniel.haxx.se

Always have everything proven to work

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