Re: [RFC PATCH v2 0/8] Introduct cpu idle prediction functionality

2017-11-29 Thread Rafael J. Wysocki
On Thu, Nov 30, 2017 at 2:00 AM, Li, Aubrey wrote: > Hi, > > Thanks Rafael's comments against V2. I'd like to ping here to see which > direction this proposal should go and what fundamental change this proposal > should make. > > I'm also open to any suggestions if my proposal is not on the right

Re: [RFC PATCH v2 0/8] Introduct cpu idle prediction functionality

2017-11-29 Thread Li, Aubrey
Hi, Thanks Rafael's comments against V2. I'd like to ping here to see which direction this proposal should go and what fundamental change this proposal should make. I'm also open to any suggestions if my proposal is not on the right way. Thanks, -Aubrey On 2017/9/30 15:20, Aubrey Li wrote: > We

Re: [RFC PATCH v2 0/8] Introduct cpu idle prediction functionality

2017-10-17 Thread Li, Aubrey
On 2017/10/17 8:07, Rafael J. Wysocki wrote: > On Monday, October 16, 2017 9:44:41 AM CEST Li, Aubrey wrote: >> >> Or you concern why the threshold can't simply be tick interval? > > That I guess. > >> For the latter, if the threshold is close/equal to the tick, it's quite >> possible >> the nex

Re: [RFC PATCH v2 0/8] Introduct cpu idle prediction functionality

2017-10-16 Thread Rafael J. Wysocki
On Monday, October 16, 2017 9:44:41 AM CEST Li, Aubrey wrote: > On 2017/10/14 9:14, Rafael J. Wysocki wrote: > > On Saturday, September 30, 2017 9:20:26 AM CEST Aubrey Li wrote: > >> We found under some latency intensive workloads, short idle periods occurs > >> very common, then idle entry and exi

Re: [RFC PATCH v2 0/8] Introduct cpu idle prediction functionality

2017-10-16 Thread Li, Aubrey
On 2017/10/14 9:14, Rafael J. Wysocki wrote: > On Saturday, September 30, 2017 9:20:26 AM CEST Aubrey Li wrote: >> We found under some latency intensive workloads, short idle periods occurs >> very common, then idle entry and exit path starts to dominate, so it's >> important to optimize them. To d

Re: [RFC PATCH v2 0/8] Introduct cpu idle prediction functionality

2017-10-13 Thread Rafael J. Wysocki
On Saturday, September 30, 2017 9:20:26 AM CEST Aubrey Li wrote: > We found under some latency intensive workloads, short idle periods occurs > very common, then idle entry and exit path starts to dominate, so it's > important to optimize them. To determine the short idle pattern, we need > to figu

[RFC PATCH v2 0/8] Introduct cpu idle prediction functionality

2017-09-30 Thread Aubrey Li
We found under some latency intensive workloads, short idle periods occurs very common, then idle entry and exit path starts to dominate, so it's important to optimize them. To determine the short idle pattern, we need to figure out how long of the coming idle and the threshold of the short idle in