A Linux Power Management "mini-summit" was held on August 9th, 2010 -
preceding the Linux Foundation's Linuxcon-Boston.
Len Brown - Intel
Matthew Garrett - Red Hat
Alan Stern - Harvard
Igor Stoppa - Nokia
Tuukka Tikkanen - Nokia
Paul Walmsley - PWSAN
Rafael Wysocki - U. Warsaw, Novell/SuSE Labs
Thank you to the Linux Foundation for generously providing the facilities.
The attendees are pictured at the start of Len's Linuxcon-Boston photo gallery:
We repeated the process used in 2009: http://lwn.net/Articles/345007/
where attendance was open to the community and the agenda formed by attendees.
Linux Idle Power Checkup
Nokia Goals and Requirements
Android Suspend Blockers
Opportunistic system suspend vs Deep idle
PM-runtime IO device suspend
PM_QOS needs (another) re-write?
Linux PM SW Architecture
Server Power Management
PM changes since Montreal mini-summit (July 2009)
Rafael presented a retrospective:
I/O Runtime PM Framework
2009-08-22 – First patch merged (core-level code).
2009-12-06 – Core-level improvements & fixes.
2010-02-23 – PCI bus type support.
2010-02-26 – User space support via sysfs (power/control).
2010-03-02 – USB bus type support (Alan).
2010-03-06 – Core & PCI fixes & improvements.
2010-03-17 – Driver support for e1000e & r8169.
2010-05-10 – I2 C bus type support.
2010-05-18 – Documentation update.
2010-05-20 – USB bus type support fixes & improvements (Alan).
2010-07-19 – power/runtime_status, powertop support.
2010-07-28 – SCSI bus type support (Alan).
Rafael's I/O Runtime PM Framework Linuxcon presentation:
Other PM-Related Development
2009-09-09 – PCI wakeup enable propagation & fixes.
2009-09-14 – Hibernate memory shrinking rework.
w/ help from mm ...
This capability would benefit MSM as well. We're looking into a
soc-specific implementation using Pat Pannuto's "pseudo" platform bus
extensions (discussed here http://lkml.org/lkml/2010/8/10/389). After
we have something working, I would be curious to see if some common
functionality could be extracted into a more generic mechanism.
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.