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BUD17-102: Update on CPU cluster Idling

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Session ID: BUD17-102
Session Name: Update on CPU cluster Idling - BUD17-102
Speaker: Ulf Hansson
Track: Power Management


★ Session Summary ★
Even if the CPU-Idle framework has improved significantly over the last years, with important consolidation efforts, the framework doesn’t scale for multi-cluster SMP systems and heterogeneous systems like big.LITTLE. Therefore Linaro have been working on a solution that unifies idle management for all kind of devices, including CPUs. This sessions provides the audience an update of this work
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★ Resources ★
Event Page: http://connect.linaro.org/resource/bud17/bud17-102/
Presentation: https://www.slideshare.net/linaroorg/bud17102-update-on-cpu-cluster-idling
Video: https://www.youtube.com/watch?v=D4DzBiIAixs
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★ Event Details ★
Linaro Connect Budapest 2017 (BUD17)
6-10 March 2017
Corinthia Hotel, Budapest,
Erzsébet krt. 43-49,
1073 Hungary

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Keyword: CPU-idle, CPU
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http://connect.linaro.org
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BUD17-102: Update on CPU cluster Idling

  1. 1. ENGINEERS AND DEVICES WORKING TOGETHER ● ● ● ● ●
  2. 2. ENGINEERS AND DEVICES WORKING TOGETHER ●
  3. 3. ENGINEERS AND DEVICES WORKING TOGETHER CPU CPU CPUCPU Cache PM Domain CPU CPU CPUCPU Cache PM Domain Coherency PM Domain CacheCoreSight
  4. 4. ENGINEERS AND DEVICES WORKING TOGETHER ● ● ● ●
  5. 5. ENGINEERS AND DEVICES WORKING TOGETHER ? CPUIDLE CPUIDLE CPU CPU ? ? CPUIDLE CPUIDLE CPUIDLE CPUIDLE CPUIDLE CPUIDLE CPU CLUSTER COHERENCY Platform hacks
  6. 6. ENGINEERS AND DEVICES WORKING TOGETHER CPUIDLE CPUIDLE CPU CPU Runtime PM Generic PM Domain CPUIDLE CPUIDLE CPUIDLE CPUIDLE CPUIDLE CPUIDLE CPU PM domain Platform Driver CPU CLUSTER & COHERENCY
  7. 7. ENGINEERS AND DEVICES WORKING TOGETHER ● ● ● ● ●
  8. 8. ENGINEERS AND DEVICES WORKING TOGETHER ● ● ● ● ● ● ● ●
  9. 9. ENGINEERS AND DEVICES WORKING TOGETHER ● ● ● ●

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