LCE12: Linaro Connect Europe, Copenhagen 2012 - Welcome

EUROPE 2012 (LCE12)
WELCOME
George Grey, CEO
Linaro Connect Europe 2012

www.linaro.orgSlide 2
EUROPE 2012 (LCE12)
Welcome
Linaro Connect in Hong Kong in May 2012
- more than 250 attendees
Copenhagen is our biggest event yet, with over
320 registrations from more than 80 companies
We have a number of updates since the last
meeting

EUROPE 2012 (LCE12)
Welcome to New Linaro Members
Club Level
Core Level

EUROPE 2012 (LCE12)
ARM Linux Influence
 from:
“Gaah. Guys, this whole ARM thing is a
f*cking pain in the ass.”
Linus Torvalds, March 11th, 2011
 to:
“Over the last year, ARM has gone from a
constant headache every merge window to an
outstanding citizen in the Linux community”
Linus Torvalds, August 29th, 2012

EUROPE 2012 (LCE12)
What’s Next
 THIS WEEK
A very full agenda
– more than 150 sessions and meetings
 Mobile, Server, Networking, Power
Management, ARMv8, landing teams, Android,
LAVA, big.LITTLE, gcc, KVM & more
 Watch out for a further Linaro-related
announcement on Thursday – here on
Thursday at 5.45pm

EUROPE 2012 (LCE12)
More than Regular Sessions & Hacking
 Lunch at 1.00-2.00pm every day
 Three mini-summits in this auditorium (12)
ARMv8: Tomorrow (Tuesday) 8.30am-1.00pm
Android: Wednesday 8.30-9.00am
plus 2.00-6.00pm
Big.LITTLE: Thursday 8.30am-1.00pm
 Sessions in morning, hacking in afternoons
every day except Wednesday: to allow West
Coast dial ins to the mini-summit

EUROPE 2012 (LCE12)
Socials
Tonight: Meet & Greet 7.00-10.00pm
Congress Hall A (2-3)
Tomorrow: Free for you to explore Copenhagen
Wednesday: Late night hacking 6.00-10.00pm
hacking rooms B4 & B5
Thursday: UDS Closing party 7.00-11.00pm.
Transport arranged to Rosie McGees Copenhagen
Friday: Demo Friday & Closing Lunch

EUROPE 2012 (LCE12)
It’s all on Your Badge
Metro map and basic Danish
Schedules (latest on schedule displays and online)
The crossword competition – submit completed
entries on Friday for draw of “how one Danish family makes
money with arms” prize
 Thanks to Dave Piggott – not even free drinks will reveal the answers
 Thanks to our sponsors

EUROPE 2012 (LCE12)
David A Rusling, Linaro CTO
The Future

EUROPE 2012 (LCE12)
William Gibson
“The future is already here — it's just not very evenly
distributed”
August, 1993
http://www.williamgibsonbooks.com/

EUROPE 2012 (LCE12)
Clues?

EUROPE 2012 (LCE12)
Think Holistically
 Need to turn our attention to the whole system
 Look for efficiency of the system as a whole
 How do we balance computation across all computing elements for the
best battery life / performance?
 Engineer to support the diversity of ARM
 Let's not slavishly follow Intel's example
 Need to consider all application spaces, not just mobile

EUROPE 2012 (LCE12)
Linux Kernel
 Ideally the kernel would
 Support a wide diversity of hardware implementation (from smart
'internet of things' devices to mobile, HPC and 'smart planet')
 Be dynamically tunable for performance versus energy usage
 Instrumentation, measurement, feedback
 Interactions with user space methods / mechanisms
 Key sub-systems need re-engineering
 Power management
 Scheduling
 Networking

EUROPE 2012 (LCE12)
Heterogeneous Systems
 Systems are a mixture of CPU, GPU, DSP etc
 Highly complex interactions (especially if you add security and
virtualization)
 Programming across these devices is generally fixed at design time
 How can we distribute work across these compute
engines efficiently?
 OpenCL (CPU / GPU)
 HSA Foundation (http://hsafoundation.com/)

EUROPE 2012 (LCE12)
Linaro Needs Re-engineering Too
 Organisational change is inevitable
 New members, new groups, wider focus
 Linaro could more or less double in size in the next 12 months
 Need to reaffirm our key values (upon which our
reputation is dependent):
 Openness
 Upstream working
 Collaboration
 Above all we're an engineering organisation
 With a reputation for integrity and excellence

EUROPE 2012 (LCE12)
Joe Bates, VP
Member Services

EUROPE 2012 (LCE12)
Member Services

EUROPE 2012 (LCE12)
Linaro is ALL about the Members!

EUROPE 2012 (LCE12)
Welcome LG Electronics!

EUROPE 2012 (LCE12)
Welcome to HiSilicon/Huawei!

EUROPE 2012 (LCE12)
More Linaro Members

EUROPE 2012 (LCE12)
Linaro Connect Attendance
0
50
100
150
200
250
300
350
Belgium
May'10
Prague
Jul'10
Florida
Oct'10
Dallas
Jan'11
Budapest
May'11
Cambourne
Aug'11
Florida
Oct'11
SanFrancisco
Feb'12
HongKong
May'12
Copenhagen
Oct'12
Linaro Connect Attendees
Other Companies
Linaro Members

EUROPE 2012 (LCE12)
Unified Memory Management

EUROPE 2012 (LCE12)
Google’s ARM-based Samsung Chromebook
 UMM! ChromeOS
 Dual Core Exynos5 A15
 2GB RAM
 16GB internal storage + 100GB chromedrive storage
 11.6” 1366 x 768
 Wifi-only or 3g
 Only $249!

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Landing Teams

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ARM Landing Team

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ARM Energy Probe
 Documentation – How AEP works & How to modify a board
 Recommendations on how to minimize measurement errors
 Describes situations which could produce unreliable data
 Extensive modifications to command line tool to drive probe
 Easy acquisition & manipulation of captured data
 Information about probe now output to stderr separate from
data

EUROPE 2012 (LCE12)
Linaro Developer Technical Support
support.linaro.org
support@linaro.org

EUROPE 2012 (LCE12)
Linaro Developer Technical Support
What does Linaro Support?
 Linaro GNU toolchain (includes gcc gdb binutils)
 Linaro tools: PowerTop, PowerDebug, Linaro Image Tools
 QEMU
 LAVA
 Linaro kernel code both upstreamed and member-platform
specific in the last 2 stable kernel releases
 Member Builds - last 3 Member Build releases on each Linaro
platform for every distribution (Android and Ubuntu today)

EUROPE 2012 (LCE12)
Project Management

EUROPE 2012 (LCE12)
Member Services Session Highlights
ARM Energy Probe
Elements of Team Effectiveness
Intro to GIT Upstreaming
101
Zendesk and
LDTS
Kernel Tracing
Tools

EUROPE 2012 (LCE12)
Alexander Sack
Platform Engineering

EUROPE 2012 (LCE12)
www.linaro.org
A few things first
Connect with everyone
Help the NEW starters!
Think bold, think out of the box
But remember the thing about realism
Ideas are great, real plans are better
Align, refine, decide
Work cross team – surely with Platform teams
And remember the fun parts!

EUROPE 2012 (LCE12)
www.linaro.org
Linaro Platform Engineering
Services for Linaro Engineering
integration, validation, release/reporting, demos
developer convenience & automation
Engineering Baselines
Full OS stacks: Android, OE, Ubuntu, …
Tip based kernel: linux-linaro(-core)
Automation Tools, CI and LAVA
CI solutions for kernel and system engineers
Developer convenience tools
LAVA – a native board provisioning system

EUROPE 2012 (LCE12)
www.linaro.org
Linaro Platform @Connect
Track: Engineering Baselines and Validation
Teams:
Android Platform, Developer Platform, QA Services
Topics:
LEB → Engineering Builds (big thing!)
Builds and Baselines for Kernel Engineers!
linux-linaro – where do we stand and what's next?
QA Services for Roadmap Validation and Sign Off
Track Leads:
Ricardo Salveti, Fathi Boudra, Vishal Bhoj

EUROPE 2012 (LCE12)
www.linaro.org
Track: Engineering Baselines and Validation
Engineering Builds for Linaro WGs
2012-11-01 11:00..11:55 in BV3
Roadmap Card QA and Sign Off
2012-10-30 10:00..10:45 in BV2
Optimize Android Build Offering for Linaro Engineers
2012-10-29 12:00..13:00 in BV3
Linux Linaro Review
2012-11-02 11:00..11:55 in BV3

EUROPE 2012 (LCE12)
www.linaro.org
Track: Automation Tools, CI and LAVA
Teams:
Infrastructure and LAVA
Topics:
Automation and Convenience for Developers
Get started on next level of LAVA use cases
Powermeasurement and Test Buddies
A Phone in the lab: Galaxy Nexus LAVA support
Track Leads:
Andy Doan, Danilo Segan
With help: Michael Hudson-Doyle and James Tunnicliffe

EUROPE 2012 (LCE12)
www.linaro.org
Track: Automation Tools, CI and LAVA
Kernel Development with Linaro CI and LAVA
2012-10-30 09:00..09:55 in BV3
Supporting Interesting Boot Options In LAVA
2012-11-02 10:00..10:45 in BV3
Visualizations/Notifications/Data Analysis in LAVA
2012-10-31 15:00..16:00 in BV3

EUROPE 2012 (LCE12)
www.linaro.org
Android @Connect
1st. Android Engineering Sessions
Hosted in Android Track
Teams:
Zach Pfeffer, Kernel, Toolchain
Topics
Optimization and Unification for Android
mini-summit on Wednesday!
2nd. Android Build & Platform Sessions
Hosted in Engineering Baselines and Validation Track
Thanks to Vishal Bhoj

EUROPE 2012 (LCE12)
www.linaro.org
Last but not least @Connect
Planning, Tracking and Reporting
It's not a topic for PMs, Leads and Managers only
Everybody needs to plan!
Everybody needs to align!
Everybody needs help marketing their steps and success!
Session:
Kernel Planning and Tracking
2012-10-31 12:00..13:00 in Room 18-A

EUROPE 2012 (LCE12)
Toolchain Team
Michael Hope
See us in B4:M1

EUROPE 2012 (LCE12)
What we do
 Compilers
 Developer tools
 Libraries

EUROPE 2012 (LCE12)
This week's goals
 Outcomes!
 New people
 Our own, ARMv8, and Android performance

EUROPE 2012 (LCE12)
Performance
 big.LITTLE and tools
 Switching focus to the Cortex-A15
 Performance meeting
 Android performance sessions

EUROPE 2012 (LCE12)
KVM
 Testing KVM

EUROPE 2012 (LCE12)
ARMv8
 GNU tools progress and what's coming up
 Good plenary on Thursday by Andrew

EUROPE 2012 (LCE12)
Others to watch out for
 Training on git, upstreaming, team effectiveness
 Ubuntu Developer Summit
 Engineering and hacking afternoons

EUROPE 2012 (LCE12)
How measured?
 Used in
 Ubuntu, Oracle's JDK, AndEBench, OpenEmbedded, crosstool-
NG, OpenWRT, OSELAS
 Downloads
 1475 last month (22 % Windows)

EUROPE 2012 (LCE12)
What we do
 “Provide best in class tools supporting Linux on ARM in
all market segments”
 “Make ARM powered products more responsive,
interactive, and power efficient though better tools, faster
libraries, and deeper end-developer features”

EUROPE 2012 (LCE12)
Do it!

EUROPE 2012 (LCE12)
Kernel Working Groups
Mark Orvek
LCE12 Copenhagen

EUROPE 2012 (LCE12)
Introduction
 In the beginning…
 Quiz: one of the following statements is true:
 I participated in the 1984 Summer Olympics in Los Angeles
 I graduated summa cum laude in Electrical Engineering from
Rochester Institute of Technology
 Worked in Embedded Linux at MontaVista Software starting
in 1999
 Preemptible Kernel, CGL, DPM, Linux Mobile Phone (boot time,
memory/FS reduction)
 What I care about:
 Hard work, dedication, commitment and
 humor (if you can’t laugh at others then…)
 Location, location, location…

big(8,080,464.3 km2 / 3,119,884.69 mile2)

Linaro – AZ
LITTLE(0.006 km2 / 0.004 miles2)

EUROPE 2012 (LCE12)
Linaro Success
 #3 in company contributors to Linux 3.5
 big.LITTLE In Kernel Switcher (CPU migration) and ARM TC2
hardware support
 big.LITTLE MP work including hotplug performance down to
200mS from about 2.5 seconds
 Initial ARMv8 64 bit toolchain and builds
 ARM’s initial upstreaming followed by very strong joint effort between
ARM and Linaro
 Get started here - http://www.linaro.org/engineering/armv8
 .... and too many others to cover

EUROPE 2012 (LCE12)
 Graphics (Jesse Barker)
 Mission
 Make kernel subsystems used by graphics run efficiently in ARM based
systems
 Efficiency in the kernel (UMM)
 Re-factoring the kernel for efficient graphics processing
 Goals for this week
1.A coherent design for the common panel framework
2.A common timing data structure that will form the basis of the HDMI/EDID
consolidation work.
3.A demonstration of the new "atomic page flip" functionality starting with
omapdrm+omapdss
4.A resolution to the issue of the interaction between dma-buf synchronization
and eviction in TTM (Translation Table Maps)

EUROPE 2012 (LCE12)
 Kernel (Deepak Saxena)
 Mission
 To have the best possible support for member platforms in the upstream
kernel
 Restructure the (ARM) Linux kernel to support the diversity that is ARM
1.Continue development on the single zImage project, with a demo at the end
of the week.
2.A plan for Swap on Flash implementation.
3.A plan for better testing and validation of upstream work

EUROPE 2012 (LCE12)
 Power Management (Amit Kucheria)
 Mission
 Optimize the Linux Kernel power management on ARM
 Integrate key ARM technologies
1.List and prioritize problems to fix to get basic big.LITTLE MP useful on
member SoCs by end of the year
2.List optimizations to big.LITTLE MP necessary to ship a product and plan a
schedule
3.Collaborate with platform teams to start power measurements during LAVA
tests

EUROPE 2012 (LCE12)
How Measured?
 Usage
 Linaro code in commercial products
 Talking about us:
 Contributions to kernel.org
 References on mailing lists
 Articles in publications
 Talking about ourselves:
 Leading talks at conferences
 Monthly releases
 Monthly / quarterly reports
 Articles in publications (such as, LWN)

EUROPE 2012 (LCE12)
Suggested Kernel Related Sessions
 If it isn’t about the kernel, it’s not important 
 Mini-Summits (Android, ARMv8, big.LITTLE)
 Engineering Builds for Linaro WGs
Common Panel Framework
 ARM-SOC Tree
 Runtime PM: Best practices BOF
 Afternoon hacking
 Evening socials

EUROPE 2012 (LCE12)
Deep insights from years of experience
 A few quotes from Despair, Inc. (http://www.despair.com/)
 “Meetings - None of us is as dumb as all of us”
 “Teamwork - A few harmless flakes working together can unleash an
avalanche of destruction.”
 “Committees - Just like teamwork. Only without the work.”
 “Compromise - Let's agree to respect each others views, no matter
how wrong yours may be.”
 “Tradition - Just because you've always done it that way doesn't mean
it's not incredibly stupid.“
 “Idiocy - Never underestimate the power of stupid people in large
groups.”
 “Failure - When your best just isn't good enough.”
 Deeper Insights
 “There is always time for panic”
 “The main problem with communication is people are involved”

EUROPE 2012 (LCE12)
Let’s
go!
Be safe, be productive, have fun!

LCE12: Linaro Connect Europe, Copenhagen 2012 - Welcome

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LCE12: Linaro Connect Europe, Copenhagen 2012 - Welcome