Rue du Rhône 114- CH-1204 Geneva - T: +41 22 849 6000 - F: +41 22 849 6001 - www.ecma-international.org
Ecma TC38 – TG2May 2007
Kevin Fisher – Intel Corp
TC38 – TG2 Convenor
Ecma/TC38-TG2/2007/024Ecma/TC38/2007/034
Rue du Rhône 114 - CH-1204 Geneva - T: +41 22 849 6000 - F: +41 22 849 6001 - www.ecma-international.org 2
Background
2003: Ecma issued the world’s first environmentally conscious design standard (ECMA-341) for the ICT & CE industries
• Aimed at the designer, provides pragmatic advice on how to reduce the environmental footprint of a product at design stage.
ECMA-341 is incomplete when it comes to the energy efficiency section
• A significant gap for the ICT & CE industry is how to measure the true energy efficient performance of a given product.
• ECMA-341 now adopted by IEC TC108 as IEC 62075 (FDIS in the summer). EE part still incomplete.
TC38-TG2 formed with a scope of “Energy Efficiency”
• The initial focus of the Ecma work is at a system level for desktop and notebook (in AC mode) computers.
Rue du Rhône 114 - CH-1204 Geneva - T: +41 22 849 6000 - F: +41 22 849 6001 - www.ecma-international.org 3
Measuring Energy Efficient Performance
Fridge Energy Efficient Performance =
Cubic Capacity
Energy used to get it cold + energy use to sustain temperature over a given time
Computer Energy Efficient Performance
Rue du Rhône 114 - CH-1204 Geneva - T: +41 22 849 6000 - F: +41 22 849 6001 - www.ecma-international.org 4
Definitions
Energy Efficient Performance (EEP)• The intersection of product performance, capabilities and energy
efficiency
Performance• Compute throughput and responsiveness at a component or
system level.
Capabilities• Is a feature or set of features that enhances usability and/or
experience of a Product
Energy Efficiency• The AC Energy consumed while executing a duty cycle measured
in KW-Hr.• Use power more efficiently during periods of activity
• Use as little power as possible when not active
• Components/devices should drop into low power modes as often and as deep as possible
Rue du Rhône 114 - CH-1204 Geneva - T: +41 22 849 6000 - F: +41 22 849 6001 - www.ecma-international.org 5
Car Analogy
Energy Efficiency = Litres/Kilometre
Capabilities = How many seats, A/C, electric windows, heated seats etc
Classifications: A motorbike and a Smart car are very energy efficient, but not great for sales people (unless selling pizzas!) or a family of six
A 4 X 4 is great for off road, butinefficient for the school run
Performance = How fast it accelerates & how fast it goes.
The Information Super Highway has no speed limit. Performance is even more relevant
Rue du Rhône 114 - CH-1204 Geneva - T: +41 22 849 6000 - F: +41 22 849 6001 - www.ecma-international.org 6
Today’s energy regulation for computers
Puts arbitrary limits on energy consumed in different power states
• Sleep state
• Idle mode
Is this good for
• Innovation? Limits technology to do more while in sleep
• The environment? Does it really encourage more efficient designs and user behaviour? Fails to account for 2 out of the 3 tenets of energy efficiency.
A more holistic approach is required
Rue du Rhône 114 - CH-1204 Geneva - T: +41 22 849 6000 - F: +41 22 849 6001 - www.ecma-international.org 7
Concept
Pow
er
Time
off sleep
idle
active
offsleep
idle
active
Which one is more energy efficient?Hint: Add up the total area of the graphs
Note: This is simplified conceptual example and represents a sum of activities in each state
Today Future
Max power
regulated
Max power
regulated
Metric on the total energy consumed
in all states, adjusted for performance
Rue du Rhône 114 - CH-1204 Geneva - T: +41 22 849 6000 - F: +41 22 849 6001 - www.ecma-international.org 8
TC38-TG2 Details
Membership
• Industry: AMD, Apple, Dell, HP, IBM, Intel, Lexmark, Microsoft, NVIDIA, Sony, Toshiba, VIA Technologies
• EU Gov: AEA Technology (UK), EC consultant
• EPA Consultants: ECOS, ICF, LBNL, Terra Novum
Meetings
• Every two weeks via teleconference
• Ad hoc FTF. Next planned June 19 / 20 in Washington DC
Rue du Rhône 114 - CH-1204 Geneva - T: +41 22 849 6000 - F: +41 22 849 6001 - www.ecma-international.org 9
TC38 – TG2 Standard
Three components to the standard
• System classification
• Compute performance and capability measurements
• Energy consumption over a defined workload / duty cycle per classification
Overview of the Ecma Standard
Rue du Rhône 114 - CH-1204 Geneva - T: +41 22 849 6000 - F: +41 22 849 6001 - www.ecma-international.org 10
Benchmark and Milestones
BAPCo (http://www.bapco.com/) selected as vendor for Benchmark Software
• EECoMark™ under development
Ecma standard provides criteria for BM to comply + approval process
Milestones
• Standard ready for approval at December General Assembly
• Energy Star Tier II January 2009
Rue du Rhône 114 - CH-1204 Geneva - T: +41 22 849 6000 - F: +41 22 849 6001 - www.ecma-international.org 11
Users of Methodology
Ecma developing the test methodology
• Standardises test process and results reporting enables comparison of results
• Does not provide pass / fail criteria (e.g. limits)
Users
• US EPA for Energy Star (ES has partnership agreements with Asian, N. & S. American and European nations)
• EU for EuP directive
• Other countries: Japan Top-runner?
• End users (IT managers etc)
Rue du Rhône 114 - CH-1204 Geneva - T: +41 22 849 6000 - F: +41 22 849 6001 - www.ecma-international.org 12
Conclusions
Measuring the EEP of a computer is exponentially more complicated than that of a fridge
• Ecma developing test methodology supported by a benchmark (BAPCo developing EECoMark in parallel)
• EPA is initially the primary target for the work, but is just one user
• Broad industry and regulator (EPA and EC) support for the work
Imagine: A computer that goes to sleep in-between key strokes!
This may not be possible, however the Ecma methodology is designed to give the innovative power
back to the designer to at least allow him to try!
