linaro-dev August 2012

linaro-dev@lists.linaro.org

54 participants
64 discussions

big.LITTLE MP status Aug 28, 2012

by David Zinman

https://wiki.linaro.org/projects/big.LITTLE.MP Announcement: ============= It is regretful that Paul Larson will be returning to Canonical after this week. I want to personally thank Paul for the huge effort and creativity that he has given to the big.LITTLE projects. Each project would have been poorer without his input. Naresh will continue to be a great asset to the team on QA and Alexander Sack will be filling in for Paul as the search continues for a QA team lead. Roadmap Cards ============= http://cards.linaro.org/browse/CARD-34 and http://cards.linaro.org/browse/CARD-35 are being closed out and planning has just begun for the next series of Linaro roadmap cards for big.LITTLE MP. Stay tuned for links. Blueprints ========= https://blueprints.launchpad.net/linaro-power-kernel/+spec/perf-record-repl… - Done as of 3.6-rc1 but not integrated into Linaro LEBs yet. https://blueprints.launchpad.net/linaro-power-kernel/+spec/big.little.mp-ho… - In progress, target for 12.09 cycle https://blueprints.launchpad.net/linaro-power-kernel/+spec/cpuidle-add-cpu-… - In progress, target for 12.09 cycle https://blueprints.launchpad.net/linaro-power-kernel/+spec/cpuidle-upstream… Work to be completed this cycle, unfinished items may be included in a new blueprint. https://blueprints.launchpad.net/linaro-qa/+spec/sched-test-porting-to-andr… - in progress Miscellaneous items ================= Main changes for V7 of MP pull - Based on v3.6-rc3 - per-task-load-average updated with v3 - applied Tixy's patch from fast-slow-cpu-dt-v1 to task-placement-v1 as they are somewhat related only. And so removed fast-slow-cpu-dt-v1 branch We've received some feedback from out big.LITTLE TC2 build: · The image boots fine. · Successfully ran: Sunspider, V8, 0xbench 2D and 3D tests · Problems: Random crashes during BBench and web-browsing. a) Downloaded the pre-built image from link given by Linaro (OK) b) Copying the image on the SD card (OK) c) Copying SD card contents to NOR flash (Issues, finally OK) - copy boot/v2p-ca15-tc2.dtb /media/VEMSD/SOFTWARE/TC2/tc2_dtb.bin should be corrected by Linaro as cp /media/boot/v2p-ca15-tc2.dtb /media/VEMSD/SOFTWARE/TC2/tc2_dtb.bin - People familiar with it may not have a problem, but novices like me to the setup follows the instruction by letter! - I made a silly mistake also at this stage where i misspelled the extension, and later when i tried to boot the board in the POST step it failed unable to locate the device tree description file. - Before ejecting the cards issued a ‘sync’ command (following advice from others). d) Boot the board (Issues, finally OK) - Discovered a further mistake made in the images.txt edit and bootscr.txt which caused the flashing and booting up of image to fail respectively. - Corrected both these typo issues and now i have got android booted up. Summary: With the pre-built image option and instructions provided user was able to flash the device successfully and see the android boot up screen. Only small issue is the above copy instruction mentioned in step c) in Linaro web page slightly incomplete, otherwise their instructions were good. 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

12 years, 3 months

Re: Re: [PATCH 3/3][RFC] devfreq: Add current freq callback in device profile

by MyungJoo Ham

> On 20 August 2012 15:15, 함명주 <myungjoo.ham(a)samsung.com> wrote: > >> Devfreq returns governor predicted frequency as current > >> frequency via sysfs interface. But device may not support > >> all frequencies that governor predicts. As per the design > >> its driver responsibility to maintain current frequency > >> at which device is operating. So add a callback in device > >> profile to fix this. > >> > >> Signed-off-by: Rajagopal Venkat <rajagopal.venkat(a)linaro.org> > > > > We still need to support "intended frequency". > > > > The "cur_freq" node is to show the intended frequency. > > As told before, you need to make additional API and ABI for the > > "actual frequency". > > > I don't think userspace will be interested in "intended frequency", i.e > governor predicted next target frequency unless code is being > debugged. More over device may not support all opps that > governor predicts. Hence cur_freq node is fixed to show freq > at the which device is operating. > > Let me know if you still think, intended frequency should be > exposed to userspace. Like CPUfreq, (scaling_cur_freq vs cpuinfo_cur_freq) device driver developers are often very interested in such values. At least for me, such information has been very helpful for production kernels. Cheers! MyungJoo > > > > > Cheers! > > MyungJoo > > > >> --- > >> drivers/devfreq/devfreq.c | 14 ++++++++++++-- > >> include/linux/devfreq.h | 6 +++--- > >> 2 files changed, 15 insertions(+), 5 deletions(-) > >> > >> diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c > >> index 375b5aa1..798e8ca 100644 > >> --- a/drivers/devfreq/devfreq.c > >> +++ b/drivers/devfreq/devfreq.c > >> @@ -176,7 +176,6 @@ struct devfreq *devfreq_add_device(struct device *dev, > >> devfreq->dev.release = devfreq_dev_release; > >> devfreq->profile = profile; > >> devfreq->governor = governor; > >> - devfreq->previous_freq = profile->initial_freq; > >> devfreq->governor_data = data; > >> devfreq->nb.notifier_call = devfreq_notifier_call; > >> devfreq->min_freq = profile->min_freq; > >> @@ -272,7 +271,18 @@ static ssize_t show_governor(struct device *dev, > >> static ssize_t show_freq(struct device *dev, > >> struct device_attribute *attr, char *buf) > >> { > >> - return sprintf(buf, "%lu\n", to_devfreq(dev)->previous_freq); > >> + int ret; > >> + unsigned long freq; > >> + struct devfreq *devfreq = to_devfreq(dev); > >> + > >> + if (devfreq->profile->get_cur_freq) { > >> + ret = devfreq->profile->get_cur_freq(devfreq->dev.parent, > >> + &freq); > >> + if (!ret) > >> + return sprintf(buf, "%lu\n", freq); > >> + } > >> + > >> + return sprintf(buf, "<unknown>"); > >> } > >> > >> static ssize_t store_min_freq(struct device *dev, struct device_attribute *attr, > >> diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h > >> index 7c6517f..43f111f 100644 > >> --- a/include/linux/devfreq.h > >> +++ b/include/linux/devfreq.h > >> @@ -76,6 +76,8 @@ struct devfreq_dev_status { > >> * explained above with "DEVFREQ_FLAG_*" macros. > >> * @get_dev_status The device should provide the current performance > >> * status to devfreq, which is used by governors. > >> + * @get_cur_freq The device should provide the current frequency > >> + * at which it is operating. > >> * @exit An optional callback that is called when devfreq > >> * is removing the devfreq object due to error or > >> * from devfreq_remove_device() call. If the user > >> @@ -91,6 +93,7 @@ struct devfreq_dev_profile { > >> int (*target)(struct device *dev, unsigned long *freq, u32 flags); > >> int (*get_dev_status)(struct device *dev, > >> struct devfreq_dev_status *stat); > >> + int (*get_cur_freq)(struct device *dev, unsigned long *freq); > >> void (*exit)(struct device *dev); > >> }; > >> > >> @@ -119,7 +122,6 @@ struct devfreq_governor { > >> * @nb notifier block used to notify devfreq object that it should > >> * reevaluate operable frequencies. Devfreq users may use > >> * devfreq.nb to the corresponding register notifier call chain. > >> - * @previous_freq previously configured frequency value. > >> * @governor_data Private data of the governor. The devfreq framework > >> * does not touch this. > >> * @min_freq Limit minimum frequency requested by user (0: none) > >> @@ -142,8 +144,6 @@ struct devfreq { > >> const struct devfreq_governor *governor; > >> struct notifier_block nb; > >> > >> - unsigned long previous_freq; > >> - > >> void *governor_data; /* private data for governors */ > >> > >> unsigned long min_freq; > >> -- > >> 1.7.11.3 > >> > >> > >> > >> > >> > >> > >> > >> > > > > -- > Regards, > Rajagopal > > > > > > >

12 years, 3 months

Re: Re: [PATCH 1/3][RFC] devfreq: Core updates to support devices which can idle

by MyungJoo Ham

> > On 20 August 2012 12:50, 함명주 <myungjoo.ham(a)samsung.com> wrote: > > > > > Prepare devfreq core framework to support devices which > > > can idle. When device idleness is detected perhaps through > > > runtime-pm, need some mechanism to suspend devfreq load > > > monitoring and resume when device is back online. Present > > > code continues monitoring unless device is removed from > > > devfreq core. > > > > > > This patch introduces following updates, > > > > > > - move device load monitoring logic to ondemand governor as > > > it is specific to ondemand. > > > > > > We have this ondemand governor in the mainline devfreq. However, > > we have (not upstreamed yet) governors with specific purpose (for > > GPU or for a specific chip) with load monitoring logic. Although > > we don't have them upstreamed yet, why don't you keep the monitoring > > logic sharable by other governors. (From today, I'm not objecting to > > have individual workqueue, but I still don't want to let each active > > governor reimplement the same things.) > > > > > > If more governors are planned based on load monitoring, possibly > ondemand is not good enough even after adding additional > configurable parameters. Could you please describe one such > case which demand new governor? > > Please find my next comments. GPU devfreq driver requires behaviors similar to conservative though not exactly same. In our internal development branch, it increases frequencies differently according to the current usage (# GPU cores used and % each core activated). If it's almost 100% and the queue is filling up, it goes to max. If it's (for example) 98%, it goes to the next faster step. Besides, GPU developers want to differ the poling intervals according to the current frequency. Another case is with bus + memory-interface case. We are going to use a custom governor for them as each bus and memory-interface has its own DVFS capability while we want them to coordinate. The two drivers may be hooked by the custom governor. We don't have a specific detail with this as it is developed by another division. However, what I know is that they are going to use their own custon governor with ondemand-like behavior in principle. Because devfreq is meant to be used by various types of devices, we cannot assume that the default governor is "mostly" fine. Device driver writers can embed governors in their own devfreq driver code ("custom governor"). > > > > > > > > > - devfreq core interacts with governors via events to perform > > > specific actions. These events include start/stop devfreq, > > > and frequency limit changes outside devfreq. This sets ground > > > for adding suspend/resume events. > > > > > > event_handler with START/STOP/UPDATE seem fine. > > > > However, init() and exit() should be different from START/STOP. > > We do not need to do init and exit every time when we do runtime > > suspend/resume. > > > > > > I agree and its already taken care in this patch. > > DEVFREQ_GOV_START : Event for initializing and starting of devfreq governor > for a device. Happens only when device is added using devfreq_add_device(). > > DEVFREQ_GOV_STOP: Event for stopping and uninitialization of devfreq governor > for a device. Happens only when device is removed using devfreq_remove_device(). > > Events introduced in next patch (2/3) - > DEVFREQ_GOV_SUSPEND: Event for suspending devfreq of a device. I.e > suspending of load monitoring of device in case of ondemand governor. > Happens only when devfreq_suspend_device() is called. > > DEVFREQ_GOV_RESUME: Event for resuming devfreq of a device. I.e > continue load monitoring of already suspended device in case of ondemand > governor. Happens only when devfreq_resume_device() is called. Ah.. suspend/resume events are seperated. Please never mind this. > > > > > - use per device work instead of global work to monitor device > > > load. This enables suspend/resume of device devfreq and > > > reduces monitoring code complexity. > > > > > > It's fine to have a delayed work struct per device. > > > > However, please try to keep as many things/features in devfreq.c as > > possible; i.e., reduce features and code size of governors. Because, > > we will be supporting various types of devices with devfreq, there > > will be various governors and I don't want them to have shared things > > reimplemented. Dealing with the delayed work at devfreq.c and let > > governors choose to use it (at its struct) or not should be fine. > > > > > > Delayed work is of only relevance to ondemand governor - justifies why > struct delayed work moved from devfreq.c to governor_simpleondemand.c. > When delayed work is optional for governors to use, then let governors > handle them if needed instead of devfreq core. > > With this change, we will not be forcing next upcoming devfreq governors > to use delayed work for load monitoring(if required) but instead flexibility > to have their own mechanisms. Its up to the governors to decide > how it wants to do dvfs of a device. But imperative to respond the events. As mentioned above, please do not assume that the default governors (drivers/devfreq/governor_*.c) will be only governors available and ondemand will be the only "active" governor for the future. I think it'd be better for the driver writes to reuse code than to copy and paste the code. Some governors may use some other polling/sampling mechanisms; however, still, providing delayed work at the core does not mean that governors must use the default delayed work struct. They may simply not use it as userspace, performance, and powersave do. > > > > > In this patchset, the size of ondemand governor has been enlarged > > too much for that purpose. I said this because I do not want governors to act as if they are core and I do not want to make writing governors too difficult for device driver writers. I want them to focus on the "policy" only, not the mechanism. > > > > > > > - Force devfreq users to set min/max supported frequencies in > > > device profile to help governors to predict target frequecy > > > with in limits. > > > > > > Is this really necessary? > > > > > Yes. Mainly for two reasons, > > 1. Devfreq core provides sysfs interface for usespace to set min/max > operating frequency for a device. These values must be within device > supported min/max frequency limits. No. they do not need to be within device supported limits. When I say "CPU should be running at least 50MHz" when the CPU supports 1000MHz ~ 3000MHz, there is no problem. Running at 1000MHz does not contradict with the condition. When I say "CPU should be running at least 4000MHz" for the same CPU, It is fine to set the CPU at max available. > 2. Governors should know device supported min/max opps and use > them where ever needed. Never assume UINT_MAX as max frequency. The core and governors do not need to know such information. They only need to provide "recommended" frequency. The corresponding driver is going to interpret it properly. Whenever we can, it's better to remove device specific information from governors and cores as long as it does not significantly increase the complexity of drivers. UINT_MAX means "I recommend to run as fast as possible." Then, the driver only needs to provide the fastest frequency. The core and governor does not need to say the specific frequency. Cheers! MyungJoo > > > > > > > The devfreq apis are not modified and are kept intact. > > > The ABIs are not. > > You can no longer do "# echo 0 > ABI_path" in order to deactivate. > > > Only relevant for ondemand governor. Load monitoring can be > deactivated when polling_ms is set to zero. Next version of patch > will fix this. Thanks. > > > > Cheers! > MyungJoo > > > > > > Signed-off-by: Rajagopal Venkat <rajagopal.venkat(a)linaro.org> > > --- > > > ps. please make the patch a bit more readable. (please don't shuffle > the location of pre-existed functions) > > > > > -- > Regards, > Rajagopal > > > > > > > -- > > MyungJoo Ham (함명주), PHD > > System S/W Lab, S/W Platform Team, Software Center > Samsung Electronics > Cell: +82-10-6714-2858 > > > > >

12 years, 3 months

jenkins ubuntu kernel build jobs for 2012.08

by John Rigby

Here is a summary of the updates from 2012.07. Naming convention: *linux-linaro-SOCNAM* use Andrey's linux-linaro branch *linux-linaro-lt-SOCNAME* use a landing team branch *linux-linaro-llt-SOCNAME* use Andrey's linux-linaro-tracking branch (3.4 based) 3.5 jobs disabled because linux-linaro and lt's have moved to 3.6 package-and-publish-linux-linaro-vexpress-3.5 package-and-publish-linux-linaro-origen-3.5 package-and-publish-linux-linaro-lt-vexpress-3.5 3.4 llt jobs remaining because linux-linaro-tracking is still 3.4 based package-and-publish-linux-linaro-llt-omap-3.4 package-and-publish-linux-linaro-llt-origen-3.4 package-and-publish-linux-linaro-llt-vexpress-3.4 3.x lt jobs remaining package-and-publish-linux-linaro-lt-omap-3.4 tilt-3.4 branch is still active package-and-publish-linux-linaro-lt-origen-3.5 branch is now ubuntu-tracking package-and-publish-linux-linaro-lt-u8500-3.4 unsure of status new 3.6 linux-linaro and lt jobs package-and-publish-linux-linaro-vexpress-3.6 package-and-publish-linux-linaro-origen-3.6 package-and-publish-linux-linaro-lt-origen-3.6 based on tracking branch which is a work in progress and not yet stable package-and-publish-linux-linaro-lt-vexpress-3.6 All jobs are in this view: https://ci.linaro.org/jenkins/view/New%20Ubuntu%20Packaged%20Kernels/ Detailed info on repos, branches, configs and such are in each job's header. --john

12 years, 3 months

tilt-3.4 compilation broken

by Viresh Kumar

Hi Andy, I got following error in compilation of TILT-3.4 at http://git.linaro.org/gitweb?p=landing-teams/working/ti/kernel.git;a=shortl… Using /home/arm/work/kernel/linaro/linux-linaro-bitLITTLE-MP.git as source for kernel CHK include/generated/utsrelease.h make[2]: `include/generated/mach-types.h' is up to date. CC arch/arm/kernel/asm-offsets.s In file included from /home/arm/work/kernel/linaro/linux-linaro-bitLITTLE-MP.git/arch/arm/include/asm/barrier.h:41:0, from /home/arm/work/kernel/linaro/linux-linaro-bitLITTLE-MP.git/arch/arm/include/asm/domain.h:14, from /home/arm/work/kernel/linaro/linux-linaro-bitLITTLE-MP.git/arch/arm/include/asm/thread_info.h:28, from /home/arm/work/kernel/linaro/linux-linaro-bitLITTLE-MP.git/include/linux/thread_info.h:53, from /home/arm/work/kernel/linaro/linux-linaro-bitLITTLE-MP.git/include/linux/preempt.h:9, from /home/arm/work/kernel/linaro/linux-linaro-bitLITTLE-MP.git/include/linux/spinlock.h:50, from /home/arm/work/kernel/linaro/linux-linaro-bitLITTLE-MP.git/include/linux/seqlock.h:29, from /home/arm/work/kernel/linaro/linux-linaro-bitLITTLE-MP.git/include/linux/time.h:8, from /home/arm/work/kernel/linaro/linux-linaro-bitLITTLE-MP.git/include/linux/timex.h:56, from /home/arm/work/kernel/linaro/linux-linaro-bitLITTLE-MP.git/include/linux/sched.h:57, from /home/arm/work/kernel/linaro/linux-linaro-bitLITTLE-MP.git/arch/arm/kernel/asm-offsets.c:13: arch/arm/include/generated/mach/barriers.h:1:33: fatal error: mach-omap2/barriers.h: No such file or directory compilation terminated. make[2]: *** [arch/arm/kernel/asm-offsets.s] Error 1 I tried compiling it with omap4plus_defconfig. I want to use a stable kernel for panda board, which one should i always refer to? -- viresh

12 years, 3 months

Compilation Break for omap2plus_defconifg

by Viresh Kumar

Hi, Compilation for omap2plus_defconfig is broken on current: linux-linaro branch. [1] Following is the compilation error: /home/arm/work/kernel/linaro/linux-linaro-bitLITTLE-MP.git/arch/arm/kernel/sleep.S: Assembler messages: /home/arm/work/kernel/linaro/linux-linaro-bitLITTLE-MP.git/arch/arm/kernel/sleep.S:88: Error: selected processor does not support ARM mode `bfc r0,#24,#8' -- Viresh [1]: http://git.linaro.org/gitweb?p=kernel/linux-linaro-tracking.git;a=shortlog;…

12 years, 4 months

[GIT PULL] bit-LITTLE-MP-v5

by Viresh Kumar

Hi Andrey, Below is pull request for v5 of MP work, following are the main changes: 1. Removed from this merge: - cpuidle-next-v4 - Already in rc1 - wq-hotplug-v1 - Already in rc1 - arm-asymmetric-support-v3 - Only one patch not mailined others are dropped 2. Rebased over v3.6-rc1 3. Extra patch from Morten/Tixy NOTE: Compile tested only --------------->8----------------------------- The following changes since commit 0d7614f09c1ebdbaa1599a5aba7593f147bf96ee: Linux 3.6-rc1 (2012-08-02 16:38:10 -0700) are available in the git repository at: git://git.linaro.org/arm/big.LITTLE/mp.git big-LITTLE-MP-v5 for you to fetch changes up to 6a1b927448144fe2fa7e28949cc54ea71bbe69d1: Merge branches 'arm-asymmetric-support-v3-v3.6-rc1', 'per-cpu-thread-hotplug-v3-fixed', 'fast-slow-cpu-dt-v1' and 'config-fragments' into big-LITTLE-MP-v5 (2012-08-14 16:57:13 +0530) ---------------------------------------------------------------- Ben Segall (1): sched: maintain per-rq runnable averages Jon Medhurst (Tixy) (1): sched: Use device-tree to provide fast/slow CPU list for HMP Morten Rasmussen (6): sched: Add ftrace events for entity load-tracking sched: entity load-tracking load_avg_ratio sched: load-tracking driven wakeup migration for HMP platforms sched: Forced migration of high load task on HMP platforms sched: Add HMP forced task migration ftrace event sched: Add missing cpus_allowed checks to HMP scheduler Paul E. McKenney (2): rcu: Use smp_hotplug_thread facility for RCUs per-CPU kthread hotplug: Fix UP bug in smpboot hotplug code Paul Turner (15): sched: track the runnable average on a per-task entitiy basis sched: aggregate load contributed by task entities on parenting cfs_rq sched: maintain the load contribution of blocked entities sched: add an rq migration call-back to sched_class sched: account for blocked load waking back up sched: aggregate total task_group load sched: compute load contribution by a group entity sched: normalize tg load contributions against runnable time sched: maintain runnable averages across throttled periods sched: replace update_shares weight distribution with per-entity computation sched: refactor update_shares_cpu() -> update_blocked_avgs() sched: update_cfs_shares at period edge sched: make __update_entity_runnable_avg() fast sched: implement usage tracking sched: introduce temporary FAIR_GROUP_SCHED dependency for load-tracking Rafael J. Wysocki (1): Revert "NMI watchdog: fix for lockup detector breakage on resume" Thomas Gleixner (6): rcu: Yield simpler kthread: Implement park/unpark facility smpboot: Provide infrastructure for percpu hotplug threads softirq: Use hotplug thread infrastructure watchdog: Use hotplug thread infrastructure infiniband: ehca: Use hotplug thread infrastructure Vincent Guittot (1): sched: cpu_power: enable ARCH_POWER Viresh Kumar (3): configs: Add config fragments for big LITTLE MP linaro/configs: Update big LITTLE MP fragment for task placement work Merge branches 'arm-asymmetric-support-v3-v3.6-rc1', 'per-cpu-thread-hotplug-v3-fixed', 'fast-slow-cpu-dt-v1' and 'config-fragments' into big-LITTLE-MP-v5 arch/arm/Kconfig | 29 + arch/arm/kernel/topology.c | 69 ++ drivers/infiniband/hw/ehca/ehca_irq.c | 253 ++-- drivers/infiniband/hw/ehca/ehca_irq.h | 6 +- include/linux/kthread.h | 11 +- include/linux/sched.h | 27 +- include/linux/smpboot.h | 43 + include/trace/events/sched.h | 151 +++ kernel/Makefile | 3 +- kernel/cpu.c | 10 +- kernel/kthread.c | 185 ++- kernel/power/suspend.c | 3 - kernel/rcutree.c | 12 +- kernel/rcutree.h | 15 +- kernel/rcutree_plugin.h | 403 ++----- kernel/rcutree_trace.c | 3 +- kernel/sched/core.c | 5 + kernel/sched/debug.c | 39 +- kernel/sched/fair.c | 1097 ++++++++++++++--- kernel/sched/features.h | 2 +- kernel/sched/sched.h | 60 +- kernel/smpboot.c | 233 ++++ kernel/smpboot.h | 4 + kernel/softirq.c | 108 +- kernel/watchdog.c | 280 ++--- linaro/configs/android.conf | 33 + linaro/configs/big-LITTLE-MP.conf | 9 + linaro/configs/linaro-base.conf | 84 ++ linaro/configs/ubuntu-minimal.conf | 24 + linaro/configs/ubuntu.conf | 2133 +++++++++++++++++++++++++++++++++ 30 files changed, 4313 insertions(+), 1021 deletions(-) create mode 100644 include/linux/smpboot.h create mode 100644 linaro/configs/android.conf create mode 100644 linaro/configs/big-LITTLE-MP.conf create mode 100644 linaro/configs/linaro-base.conf create mode 100644 linaro/configs/ubuntu-minimal.conf create mode 100644 linaro/configs/ubuntu.conf

12 years, 4 months

Can't view the lava information from android-build for some builds

by YongQin Liu

Hi, Just found that I can't view the lava result on android-build page for some build. but not all of them, I still can view some the information of some builds before. say the builds of https://android-build.linaro.org/builds/~linaro-android/snowball-jb-gcc47-i…. For the build #28 even I click the " login to LAVA " link and logged in, I still get this information like the NG.png attachment file. But for the build #26, I can see the lava information listed. Like the attached OK.png file -- Thanks, Yongqin Liu --------------------------------------------------------------- #mailing list linaro-android(a)lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-android linaro-validation(a)lists.linaro.org http://lists.linaro.org/pipermail/linaro-validation

12 years, 4 months

big.LITTLE MP status Aug 20, 2012

by David Zinman

https://wiki.linaro.org/projects/big.LITTLE.MP Roadmap Cards ============= http://cards.linaro.org/browse/CARD-34 Closeout * A script has been created that emulates a big.LITTLE system on an x86 system by tuning down 2 processors in a cluster to emulate the A7 processors. * Simulation tools and corresponding descriptions are located at: http://git.linaro.org/gitweb?p=people/rob_lee/asymm_cpu_emu.git. * The perf record and playback feature allows a workload to be defined, recorded and then played back later. This has been released in 2012.07 LEB. It works in the mainline kernel as of 3.6-rc1 * A tools to create webkit-based web-browsing benchmarks was created (http://git.linaro.org/gitweb?p=people/antipov/testbrowser.git;a=summary) * update the card closeout related to the pending deliverables for the simulator + workloads (mention that the simulator part was not complete, and more mobile workloads should be defined) and create a new card to handle that deliverable in Q3and create a new card for Q3 to cover these pending items http://cards.linaro.org/browse/CARD-35 Closeout * Hotplug optimizations are in the git tree: git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git review-wq-hotplug. * Hotplug documentation is at: https://wiki.linaro.org/WorkingGroups/PowerManagement/Doc/Hotplug#CPU_hotpl… * Asymmetric support for ARM accepted by Russell and have been merged into 3.6 * Several cpuidle changes have already been accepted in mainline and adding cpu-specific idle tables is being reviewed currently. Blueprints ========= https://blueprints.launchpad.net/linaro-power-kernel/+spec/perf-record-repl… - Broken in mainline, dmitry is working on fixing it. - In progress https://blueprints.launchpad.net/linaro-power-kernel/+spec/big.little.mp-ho… - In progress https://blueprints.launchpad.net/linaro-power-kernel/+spec/cpuidle-add-cpu-… - In progress https://blueprints.launchpad.net/linaro-power-kernel/+spec/cpuidle-upstream… - In progress https://blueprints.launchpad.net/linaro-qa/+spec/sched-test-porting-to-andr… - Started Miscellaneous items ================= Fastmodels: - Kerrnel boots - booting with all cores , bootwrapper config needs more work. - Not released with LT this cycle Testplan - Dates need to be revised - Testing blueprints are being drafted. Big-LITTLE-MP-v5 (together with the updated multiplatform topic) has been merged into linux-linaro-core-tracking tree. The tag is llct-20120814.0. 1. Removed from this merge: - cpuidle-next-v4 - Already in rc1 - wq-hotplug-v1 - Already in rc1 - arm-asymmetric-support-v3 - Only one patch not mailined others are dropped 2. Rebased over v3.6-rc1 3. Extra patch from Morten/Tixy For a more complete list please see: http://lists.linaro.org/pipermail/linaro-dev/2012-August/013125.html Thomas Gleixner's CPU-hotplug-kthread infrastructure patches and bugfixes by Paul McKenney have been accepted into tip 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

12 years, 4 months

2012/8/22 Android Platform Team Meeting Agenda Posted

by Zach Pfeffer

Take a look at: https://wiki.linaro.org/Platform/Android/Meetings/2012-08-22 Feel free to add to the agenda and join us in #linaro-meeting on irc.freenode.net at 13:00 UTC on 8/22/2012. -- 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

12 years, 4 months

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linaro-dev August 2012