linaro-dev September 2012

linaro-dev@lists.linaro.org

84 participants
100 discussions

Test Result Summary for Linaro ubuntu 12.09 Release (Calendar Week 39).

by Botao Sun

Calendar Week 39: Here is test result summary for Linaro ubuntu 12.09 Release on following boards: 1) ARM Versatile Express A9; 2) Samsung Origen; 3) TI Panda Board 4430; 4) TI Panda Board 4460. *Synopsis: "DEADLOCK" error has disappeared during boot process, except on TI Panda platform, although it won't affect system running. Both 480p & 1080p videos can be played on Panda board with an extra package installed - "ubuntu-omap4-extras-multimedia". Device Tree feature is still unavailable on vexpress A9. WiFi, Bluetooth and video playback are unavailable on Samsung Origen.* 1. vexpress A9 + ubuntu (Column AB): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AroPySpr4FnEdFNmV… Device Tree blob files have recovered, although this feature is still unavailable due to a UEFI defect, which Ryan is working on that. 480p video playback still doesn't work on this release image. YouTube HTML5 video now can be played, although the frame rate is low, which is as expected. All other features remain the same as last week. 2. Origen + ubuntu (Column W): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AroPySpr4FnEdEowN… "DEADLOCK" error has gone on this image, and kernel version has been upgraded to 3.6.0-1. All other features remain the same as last week. 3. Panda 4430 + ubuntu (Column Y): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AroPySpr4FnEdEwwZ… YouTube HTML5 video now can be played well, but due to Audio over HDMI failure, no sound can be heard. Although file transfer via Bluetooth is still unavailable, Bluetooth headset works well. 480p video on SD card can be played well if package "ubuntu-omap4-extras-multimedia" be installed in advance. 1080p video can be played with a low frame rate. All power management test has passed (or skipped properly) on this image. No significant change on all the other features. 4. Panda 4460 + ubuntu (Column X): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AroPySpr4FnEdEwwZ… Bluetooth headset doesn't work here, it hangs the board during the pair process. Hardware acceleration works well. 3.5mm Audio input is still unavailable and suspend / resume test failed as well. No change on all the other features compare with last week test. For the previous week (Calendar week 38) summary, please refer to attachment. Thank you. Best Regards Botao Sun

11 years, 10 months

ARM gcc vs ARM rvct

by Dechesne, Nicolas

Hi there, Is there any sensible comparison document for gcc vs rvct in terms of speed, code size, feature set? Is there any reason / use case to recommend rvct over gcc for non-Linux s/w? Thx nicolas Texas Instruments France SA, 821 Avenue Jack Kilby, 06270 Villeneuve Loubet. 036 420 040 R.C.S Antibes. Capital de EUR 12.654.784

11 years, 10 months

Call for linux-linaro / linux-linaro-core-tracking topic updates

by Andrey Konovalov

Greetings, The linux-linaro-core-tracking (llct) tree has been moved to v3.6-rc5 base. All the topics existed in the 12.08 version of llct have been carried over into the updated tree with few easy to resolve conflicts. The only one which needs attention is due to commit "ASoC: Samsung: Fix build error" [1]. In fact I had to revert it because it doesn't work with the multiplatform topic (the latter renames all the arch/arm/mach-<name>/include/mach dirs to arch/arm/mach-<name>/include/mach-<name>). Sachin or Tushar, could you take a look please? Also the big-LITTLE-MP topic has been updated to v3.6-rc5 based big-LITTLE-MP-v8. The current list of the llct topics can be found in [2]. 12.09 will most probably be v3.6-rc6 based. But for the moment I've tried rebasing the linux-linaro (ll) tree to the current v3.6-rc5 based llct, and encountered no merge issues. The current list of the ll topics can be found in [3]. The plan is to have single topic from the ARM LT (like the Samsung LT code is represented now) this month vs several one-per-feature topics. In 12.08 the linux-linaro-tracking (llt) tree was v3.4 based, and had recent code from TI LT plus the older code (no changes for couple months) from ARM and Samsung LTs. Any changes here in 12.09? (Are we on v3.4 still, are there other LTs to add to this tree?). And yes, this month llc-3.4 "core stable" tree will be introduced (first of all, to get the Gator updates for v3.4, and some critical fixes), and llt will start using it as a base. No more details atm, should have something in git by the end of this week. Please let me know if there are any updates to the existing topics, or new topics missing. And if there are obsoleted topics. The linux-linaro and linux-linaro-tracking trees will be frozen (only bug fixes would be accepted afterwards, no new additions) by the end of September 18. Thanks, Andrey [1] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h… [2] http://git.linaro.org/gitweb?p=kernel/linux-linaro-manifest.git;a=blob;f=ma… [3] http://git.linaro.org/gitweb?p=kernel/linux-linaro-manifest.git;a=blob;f=ma…

11 years, 10 months

[PATCH 0/3] Create sched_select_cpu() and use it in workqueues

by Viresh Kumar

In order to save power, it would be useful to schedule work onto non-IDLE cpus instead of waking up an IDLE one. To achieve this, we need scheduler to guide kernel frameworks (like: timers & workqueues) on which is the most preferred CPU that must be used for these tasks. This patchset is about implementing this concept. The first patch adds sched_select_cpu() routine which returns the preferred cpu which is non-idle. It accepts max level of sched domain, upto which we can choose a CPU from. It can accept following options: SD_SIBLING, SD_MC, SD_BOOK, SD_CPU or SD_NUMA. Second and Third patch are about adapting this change in workqueue framework. Earlier discussions over this concept were done at last LPC: http://summit.linuxplumbersconf.org/lpc-2012/meeting/90/lpc2012-sched-timer… Figures: -------- Test case 1: - Performed on TC2 with ubuntu-devel - Boot TC2 and run $ trace-cmd record -e workqueue_execute_start This will trace only the points, where the work actually runs. Do, this for 150 seconds. Results: --------- Domain 0: CPU 0-1 Domain 1: CPU 2-4 Base Kernel: Without my modifications: ------------------------------------- CPU No. of works run by CPU ----- ----------------------- CPU0: 7 CPU1: 445 CPU2: 444 CPU3: 315 CPU4: 226 With my modifications: ---------------------- CPU No. of works run by CPU ---- ----------------------- CPU0: 31 CPU2: 797 CPU3: 274 CPU4: 86 Test case 2: ----------- I have created a small module, which does following: - Create one work for each CPU (using queue_work_on(), so must schedule on that cpu) - Above work, will queue "n" works for each cpu with queue_work(). These works are tracked within the module and results are printed at the end. This gave similar results, with n ranging from 10 to 1000. Viresh Kumar (3): sched: Create sched_select_cpu() to give preferred CPU for power saving workqueue: create __flush_delayed_work to avoid duplicating code workqueue: Schedule work on non-idle cpu instead of current one arch/arm/Kconfig | 11 +++++++ include/linux/sched.h | 11 +++++++ kernel/sched/core.c | 88 +++++++++++++++++++++++++++++++++++++++------------ kernel/workqueue.c | 36 ++++++++++++++------- 4 files changed, 115 insertions(+), 31 deletions(-) -- 1.7.12.rc2.18.g61b472e

11 years, 10 months

A few more snowballs

by Dave Pigott

Hi all, I Thought I'd let you know that we now have 5 more ST-Ericsson Snowball V11 PDKs in LAVA. They went live yesterday afternoon. In total we now have 10 snowballs but only 8 are available because one of them has been sidelined for staging, and another is not playing ball. I'm working on trying to understand if the board is just dead, or if there there is some other issue. At the moment it's not talking to the outside world at all. I'll keep you posted. Thanks Dave Dave Pigott Validation Engineer T: +44 1223 40 00 63 | M +44 7940 45 93 44 Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog

11 years, 10 months

2012-09-26 Android Platform Team Meeting Agenda Posted

by Zach Pfeffer

Please take a look at: https://wiki.linaro.org/Platform/Android/Meetings/2012-09-26 Feel free to add to the agenda and join us in #linaro-meeting on irc.freenode.net at 13:00 UTC on 2012/9/26. -- Zach Pfeffer Android Platform Team Lead, Linaro Platform Teams Linaro.org | Open source software for ARM SoCs Follow Linaro: http://www.facebook.com/pages/Linaro http://twitter.com/#!/linaroorg - http://www.linaro.org/linaro-blog

11 years, 10 months

big.LITTLE MP status Sep 25, 2012

by David Zinman

https://wiki.linaro.org/projects/big.LITTLE.MP Announcement ============== == big.LITTLE Mini-Summit @ Linaro Connect Copenhagen Q32012 == Thursday November 1, 2012 Plenaries: 8.30 - 9.00, 2 x 15 minutes 9am - 1pm: 1 break 10.45am to 11.00am Plenaries - Introduction to the mini-summit, what we’re going to discuss, what we want to achieve Aims - Update the community on progress to date - Discuss the big.LITTLE work in Linaro for the next quarter (workload annotation, power aware scheduler, testing and automation) - Other open source activities Blueprint updates ================ https://blueprints.launchpad.net/linaro-power-kernel/+spec/big.little.mp-ho… - Delayed for a month but should land for 12.10 cycle. - A useful file https://wiki.linaro.org/WorkingGroups/PowerManagement/Doc/Hotplug?action=At… https://blueprints.launchpad.net/linaro-power-kernel/+spec/perf-record-repl… - works in 3.6 mainline kernels https://blueprints.launchpad.net/linaro-power-kernel/+spec/cpuidle-add-cpu-… - per cpu states not accepted. Suggested to modify multiple drivers support : http://www.spinics.net/lists/linux-acpi/msg37921.html https://blueprints.launchpad.net/linaro-qa/+spec/sched-test-porting-to-andr… - first builds are in progress https://blueprints.launchpad.net/linaro-qa/+spec/task-placement-testing - in progress Roadmap Cards ============== The roadmap cards http://cards.linaro.org/browse/CARD-34 and http://cards.linaro.org/browse/CARD-35 have been delivered and closed. The roadmap cards http://cards.linaro.org/browse/CARD-189 and http://cards.linaro.org/browse/CARD-190 are marked for for review by the Technical Steering Committee. Miscellaneous ============== Private QA builds containing test code should be ready this week. These builds give an added value to Linaro members in that they contain code for more complete testing. The project plan is at https://docs.google.com/a/linaro.org/document/d/1XI9FaEd6dYfCEDezboF7gWtrTO… -- David Zinman Linaro Release Manager | Project Manager Linaro.org | Open source software for ARM SoCs

11 years, 10 months

LAVA: Jobs submitted to vexpress device type

by Dave Pigott

Hi All, I notice that there are still some jobs being submitted to LAVA with the device-type "vexpress". This device type is now deprecated and has been replaced by the more specific device type vexpress-a9. The jobs seem to be coming from CI and Android. Could someone amend these submissions? Thanks Dave Dave Pigott Validation Engineer T: +44 1223 40 00 63 | M +44 7940 45 93 44 Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog

11 years, 10 months

i.Mx53 QSB

by Ajay Kaushik

11 years, 10 months

quantal quetzal test rebuild

by Matthias Klose

This weekend a test rebuild of quantal quetzal did start for the amd64, i386 and armhf architectures. The test rebuild is now finished for the main and restricted components, and continues with the universe and multiverse components. Results can be seen at http://people.ubuntuwire.org/~wgrant/rebuild-ftbfs-test/test-rebuild-201209… The archive for the test rebuild is https://launchpad.net/ubuntu/+archive/test-rebuild-20120922 Please help fixing the build failures for the final release. Note that an upload won't show up in the superseded sections, if it is uploaded to quantal-proposed, but didn't propagate yet to quantal. Matthias

11 years, 10 months

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linaro-dev September 2012