Re: [PATCH v3 0/7] drivers: devfreq: fix and optimize workqueue mechanism

2019-02-13 Thread Chanwoo Choi
Hi Lukasz, On 19. 2. 13. 오후 8:14, Lukasz Luba wrote: > Hi Chanwoo, > > On 2/13/19 1:18 AM, Chanwoo Choi wrote: >> On 19. 2. 13. 오전 7:23, Lukasz Luba wrote: >>> This patch set changes workqueue related features in devfreq framework. >>> First patch switches to delayed work instead of deferred.

Re: [PATCH v3 0/7] drivers: devfreq: fix and optimize workqueue mechanism

2019-02-13 Thread Lukasz Luba
Hi Matthias, Chanwoo, Regarding some measurements data for our approximations. I have found a comprehensive power consumption measurements for i.MX6 dual/quad (Cortex-A9) boards. https://cache.freescale.com/files/32bit/doc/app_note/AN4509.pdf The boards have DDR3 memories not LPDDR3 PoP but it

Re: [PATCH v3 0/7] drivers: devfreq: fix and optimize workqueue mechanism

2019-02-13 Thread Lukasz Luba
Hi Chanwoo, On 2/13/19 1:18 AM, Chanwoo Choi wrote: > On 19. 2. 13. 오전 7:23, Lukasz Luba wrote: >> This patch set changes workqueue related features in devfreq framework. >> First patch switches to delayed work instead of deferred. >> The second switches to regular system work and deletes custom

Re: [PATCH v3 0/7] drivers: devfreq: fix and optimize workqueue mechanism

2019-02-12 Thread Chanwoo Choi
On 19. 2. 13. 오전 7:23, Lukasz Luba wrote: > This patch set changes workqueue related features in devfreq framework. > First patch switches to delayed work instead of deferred. > The second switches to regular system work and deletes custom 'devfreq'. > > Using deferred work in this context might

[PATCH v3 0/7] drivers: devfreq: fix and optimize workqueue mechanism

2019-02-12 Thread Lukasz Luba
This patch set changes workqueue related features in devfreq framework. First patch switches to delayed work instead of deferred. The second switches to regular system work and deletes custom 'devfreq'. Using deferred work in this context might harm the system performance. When the CPU enters