Re: [PATCH] staging: android: ion: reduce lock contention latency

2017-03-16 Thread kbuild test robot
Hi Junil, [auto build test WARNING on staging/staging-testing] [also build test WARNING on v4.11-rc2 next-20170310] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Junil-Lee/staging-android-ion-r

Re: [PATCH] staging: android: ion: reduce lock contention latency

2017-03-16 Thread kbuild test robot
Hi Junil, [auto build test ERROR on staging/staging-testing] [also build test ERROR on v4.11-rc2 next-20170310] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Junil-Lee/staging-android-ion-reduc

Re: [PATCH] staging: android: ion: reduce lock contention latency

2017-03-14 Thread Laura Abbott
On 03/14/2017 12:51 AM, Junil Lee wrote: > Replace list into lock-less list of ion page pool. > > Measure how mutex lock contention latency on android. > > 1. the test is done under android 7.0 > 2. startup many applications circularly > 3. find sample in trace log as below > > cameraserver-

[PATCH] staging: android: ion: reduce lock contention latency

2017-03-14 Thread Junil Lee
Replace list into lock-less list of ion page pool. Measure how mutex lock contention latency on android. 1. the test is done under android 7.0 2. startup many applications circularly 3. find sample in trace log as below cameraserver-625 [004] ...1 1891.952958: mutex_lock_enter: id=0 B