On 14 November 2012 15:23, Liviu Dudau Liviu.Dudau@arm.com wrote:
On Wed, Nov 14, 2012 at 06:33:29AM +0000, Viresh Kumar wrote: Hi Viresh,
Hi Liviu,
There are two categories of branches/patches that are kept here. One that are guaranteed to work on current big LITTLE system (Tested on ARM Vexpress TC2)
How is that guarantee created? Do you have a set of tests that you are going to run before declaring it working? Interested to have a bit more detail here.
It was a Weakly ordered statement :)
Actually, the most important patchset present in this tree for now is "task placement" from Morten. Which enabled big LITTLE behavior. We can add any patch to master which doesn't break this branch.
Earlier i got Vincent's and Preeti's patches, which broke this and so we have to come with this solution.
Yes, i do test these branches with MP Demo i created some time back. Also, we are planning to do some sysbench/cyclic tests on both merge branches.
For now I have created to merge branches:
- big-LITTLE-MP-master-v12: git merge arm-multi_pmu_v2 hw-bkp-v7.1-debug-v1 per-task-load-average-v3-merged task-placement-v2
task-migration-sysfs-tuning misc-patches config-fragments
- big-LITTLE-MP-exp-v12: git merge intel-powerclamp-driver-v1 per-entity-load-tracking-with-core-sched-v1 sched-pack-small-tasks-v1 sched-timer-wq-migration-v2-resend
Not exactly clear what is the transition process from experimental to master.
Whatever doesn't break HMP patches can go into master directly. The purpose here is, that partners should be able to test HMP stuff on their boards with Linaro kernel.
And another question: is there going to be an implicit order in pulling patches in your master branch? (i.e. you pull first the old patches that are known to work because they were previously in -master- before pulling patches from -experimental- ? )
Not sure if i got your question well. Whatever lands into master has very less chance to get out to exp. I normally create an octopus merge in my merge branches, so there is no specific order i follow during these merges.
Sorry if i haven't answered it well :(
-- viresh