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Jean Pihet
Day Saturday
Room Lameere
Capacity 500
Start time 13:00
End time 14:00
Duration 01:00
Track Embedded Devroom
Fosdem-2012-jpihet-DeviceLatencyModel.pdf (slides)

Linux (SoC) power management

Due to the nature of the new SoC architectures the Power Management needs a new model for the various system latencies.

The talk presents: - the concepts of system, devices, wake-up and resume latencies, - the recent changes in the devices framework for the latency, why and how to make it generic, - the recent changes in the ARM/OMAP platform code for the system latency, - the problems encountered while modeling and measuring the various latencies, - a proposal on the model, - the planned changes in the device framework, the platform code and the APIs.

This talk is oriented towards Linux power management developers and users. The generic model covers all flavors of Linux, from the embedded device up to the multi processor computing server.

Concurrent events:

When Event Track Where
12:30-13:20 Re-thinking system and distro development Keynotes Janson
12:45-13:30 A GNUstep Applications Overview GNUstep AW1.126
13:00-13:15 Q&A with the FOSDEM Staff Lightning Talks Ferrer
13:00-13:25 Ada in the on-line multi-user game Crimeville Ada AW1.121
13:00-13:25 Cloud high availability with pacemaker-cloud Virtualization and Cloud Chavanne
13:00-13:30 WebApps: webinos, Tying Web Technology to Everything Jabber and XMPP H.2213
13:00-13:30 Intro to Tizen and the Future of the Community Open Mobile Linux AW1.120
13:00-13:45 Overview and a demo of Dogtag Certificate system Hardware Cryptography H.2214
13:00-13:50 PostgreSQL Clustering with Red Hat Cluster Suite PostgreSQL K.4.201
13:00-13:55 Openshift K.3.201
13:00-14:00 Cairo: How to render tomorrow's user interfaces. K.3.401
13:00-14:00 Multiarch - why it's important CrossDistribution H.1302
13:15-13:45 LibreOffice QA LibreOffice H.1309
13:15-14:00 Univention Corporate Server CrossDistribution H.1301
13:20-13:35 greenlight for girls Lightning Talks Ferrer
13:30-13:55 OpenNebula Project Virtualization and Cloud Chavanne
13:30-13:55 The contract model of Ada 2012 Ada AW1.121
13:30-14:00 buildroot: flexible building of a custom embedded system Open Mobile Linux AW1.120
13:30-14:00 WebApps: Plastique Jabber and XMPP H.2213
13:30-14:00 2012: New perspectives for Mozilla Mozilla UD2.218A
13:40-13:55 Hacking in the real world: photography from above Lightning Talks Ferrer
13:45-14:15 Why Java for Linux Applications? CrossDesktop H.1308
13:45-14:15 GNUstep GUI GNUstep AW1.126

Next (up to 3) talks in the same room (Lameere):

When Event Track
14:00-15:00 License issues in Android Embedded
15:00-16:00 True open hardware: Opencores and OpenRISC Embedded
16:00-17:00 Why mobile text input is hard Embedded

Events that start after this one (within 30 minutes):

When Event Track Where
14:00-15:00 License issues in Android Embedded Lameere
14:00-14:15 Linux Kernel MultiPath TCP Lightning Talks Ferrer
14:00-14:25 The Aeolus Project Virtualization and Cloud Chavanne
14:00-14:30 FLOSSing for Good Legal Hygiene: Stories from the Trenches AW1.125
14:00-14:30 Improving the Extensions and Template Center LibreOffice H.1309
14:00-14:30 WebApps: Building Real-time in the Web with XMPP Jabber and XMPP H.2213
14:00-14:30 Deep Dive into KDE Mobile development on N9/N950 (Harmattan) Open Mobile Linux AW1.120
14:00-14:30 The state of Women & Mozilla Mozilla UD2.218A
14:00-14:30 Using the OpenJDK to investigate covariance in Java Free Java K.4.401
14:00-14:30 Gluon Mono K.3.601
14:00-14:50 Beyond Traditional Mobile Linux Future of UI K.1.105
14:00-14:50 Ganeti: "how we did it" Hypervisors Janson
14:00-14:50 Multi-CPU performance in PostgreSQL 9.2 PostgreSQL K.4.201
14:00-14:50 Multicore programming support in Ada Ada AW1.121
14:00-14:55 JBoss AS7 : Building JBoss AS 7 for Fedora K.3.201
14:00-15:00 Deployment and Use of X.509 in Free Software Components Hardware Cryptography H.2214
14:00-15:00 Illumian, a new illumos based distribution CrossDistribution H.1301
14:00-15:00 Multi-OS Continuous Packaging with CrossDistribution H.1302
14:00-15:00 dma_buf buffer sharing K.3.401
14:00-15:45 LPI Exam Session 1 Certification Guillissen
14:00-16:00 BSDA certification exams Certification UA2.114
14:00-16:00 TYPO3 certification exams Certification UA2.114
14:20-14:35 Dovecot: More than an email server Lightning Talks Ferrer
14:20-14:50 Sustainable mentorship CrossDesktop H.1308
14:30-14:55 Open Cloud Interoperability with CompatibleOne Virtualization and Cloud Chavanne
14:30-15:00 Impress Hacking LibreOffice H.1309
14:30-15:00 Politics, Positives, Paperwork and Pain - Our year to date in the JCP Free Java K.4.401
14:30-15:00 IT and Community Mozilla UD2.218A
14:30-15:00 Risks vs. Benefits on Copyright Assignment AW1.125
14:30-15:00 XMPP Lunch Break Jabber and XMPP H.2213
14:30-15:00 Community Qt apps repository - way forward Open Mobile Linux AW1.120
14:30-15:00 Étoilé: What has been done over the past year and what's next? GNUstep AW1.126