The University of Southampton
University of Southampton Institutional Repository

Mitigating interactive performance degradation from mobile device thermal throttling

Mitigating interactive performance degradation from mobile device thermal throttling
Mitigating interactive performance degradation from mobile device thermal throttling
Mobile devices are limited in mass and volume reducing the viability of active device cooling implementations, this requires the use of less effective passive techniques to maintain device skin temperature levels. Application performance demands on a modern mobile device are driven by sustained performance workloads, such as 3D games, Virtual and Augmented Reality. Mobile System-on-Chips have corresponding increases in performance through both architectural changes and frequency of operation increases; which has resulted in the peak power consumption exceeding the sustainable thermal envelope defined by device skin temperature requirements. Existing thermal throttling techniques mitigate this by capping the frequency of operation of the System-on-Chip. Through experimentation with a modern smartphone platform using sequences from real-world applications, we demonstrate in this paper that Frequency Capping can have a significant effect on the performance of interactive applications, increasing the number of frame rate defects by up to 146%. We propose Task Utilization Scaling, a new lever for thermal throttling, which scales performance for critical interactive periods by the same factor as non-critical periods. Experiments demonstrate that the proposed approach can result in a decrease in frame rate defects of up to 18% compared with Frequency Capping or a skin temperature reduction of up to 2°C.
1943-0663
Bantock, James, Robert Benjamin
96aee509-d437-4c00-ae46-7b5899947e49
Al-Hashimi, Bashir
0b29c671-a6d2-459c-af68-c4614dce3b5d
Merrett, Geoff
89b3a696-41de-44c3-89aa-b0aa29f54020
Bantock, James, Robert Benjamin
96aee509-d437-4c00-ae46-7b5899947e49
Al-Hashimi, Bashir
0b29c671-a6d2-459c-af68-c4614dce3b5d
Merrett, Geoff
89b3a696-41de-44c3-89aa-b0aa29f54020

Bantock, James, Robert Benjamin, Al-Hashimi, Bashir and Merrett, Geoff (2020) Mitigating interactive performance degradation from mobile device thermal throttling. IEEE Embedded Systems Letters. (In Press)

Record type: Article

Abstract

Mobile devices are limited in mass and volume reducing the viability of active device cooling implementations, this requires the use of less effective passive techniques to maintain device skin temperature levels. Application performance demands on a modern mobile device are driven by sustained performance workloads, such as 3D games, Virtual and Augmented Reality. Mobile System-on-Chips have corresponding increases in performance through both architectural changes and frequency of operation increases; which has resulted in the peak power consumption exceeding the sustainable thermal envelope defined by device skin temperature requirements. Existing thermal throttling techniques mitigate this by capping the frequency of operation of the System-on-Chip. Through experimentation with a modern smartphone platform using sequences from real-world applications, we demonstrate in this paper that Frequency Capping can have a significant effect on the performance of interactive applications, increasing the number of frame rate defects by up to 146%. We propose Task Utilization Scaling, a new lever for thermal throttling, which scales performance for critical interactive periods by the same factor as non-critical periods. Experiments demonstrate that the proposed approach can result in a decrease in frame rate defects of up to 18% compared with Frequency Capping or a skin temperature reduction of up to 2°C.

Text
Mitigating Interactive Performance Degradation from Mobile Device Thermal Throttling - Accepted Manuscript
Download (178kB)

More information

Accepted/In Press date: 19 April 2020

Identifiers

Local EPrints ID: 439709
URI: http://eprints.soton.ac.uk/id/eprint/439709
ISSN: 1943-0663
PURE UUID: 8cdcd1ea-5d9b-4777-9723-06bfc394a587
ORCID for James, Robert Benjamin Bantock: ORCID iD orcid.org/0000-0002-0766-7532
ORCID for Geoff Merrett: ORCID iD orcid.org/0000-0003-4980-3894

Catalogue record

Date deposited: 30 Apr 2020 16:30
Last modified: 22 May 2020 00:36

Export record

Contributors

Author: James, Robert Benjamin Bantock ORCID iD
Author: Bashir Al-Hashimi
Author: Geoff Merrett ORCID iD

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×