Re: [RFC 3/6] sched: pack small tasks

2012-11-20 Thread Vincent Guittot
On 20 November 2012 15:28, Morten Rasmussen wrote: > Hi Vincent, > > On Mon, Nov 12, 2012 at 01:51:00PM +, Vincent Guittot wrote: >> On 9 November 2012 18:13, Morten Rasmussen wrote: >> > Hi Vincent, >> > >> > I have experienced suboptimal buddy selection on a dual cluster setup >> > (ARM TC2

Re: [RFC 3/6] sched: pack small tasks

2012-11-20 Thread Morten Rasmussen
Hi Vincent, On Mon, Nov 12, 2012 at 01:51:00PM +, Vincent Guittot wrote: > On 9 November 2012 18:13, Morten Rasmussen wrote: > > Hi Vincent, > > > > I have experienced suboptimal buddy selection on a dual cluster setup > > (ARM TC2) if SD_SHARE_POWERLINE is enabled at MC level and disabled at

Re: [RFC 3/6] sched: pack small tasks

2012-11-12 Thread Vincent Guittot
On 9 November 2012 18:13, Morten Rasmussen wrote: > Hi Vincent, > > I have experienced suboptimal buddy selection on a dual cluster setup > (ARM TC2) if SD_SHARE_POWERLINE is enabled at MC level and disabled at > CPU level. This seems to be the correct flag settings for a system with > only cluste

Re: [RFC 3/6] sched: pack small tasks

2012-11-12 Thread Vincent Guittot
On 9 November 2012 17:46, Morten Rasmussen wrote: > On Fri, Nov 02, 2012 at 10:53:47AM +, Santosh Shilimkar wrote: >> On Monday 29 October 2012 06:42 PM, Vincent Guittot wrote: >> > On 24 October 2012 17:20, Santosh Shilimkar >> > wrote: >> >> Vincent, >> >> >> >> Few comments/questions. >>

Re: [RFC 3/6] sched: pack small tasks

2012-11-12 Thread Vincent Guittot
On 2 November 2012 11:53, Santosh Shilimkar wrote: > On Monday 29 October 2012 06:42 PM, Vincent Guittot wrote: >> >> On 24 October 2012 17:20, Santosh Shilimkar >> wrote: >>> >>> Vincent, >>> >>> Few comments/questions. >>> >>> >>> On Sunday 07 October 2012 01:13 PM, Vincent Guittot wrote:

Re: [RFC 3/6] sched: pack small tasks

2012-11-09 Thread Morten Rasmussen
Hi Vincent, I have experienced suboptimal buddy selection on a dual cluster setup (ARM TC2) if SD_SHARE_POWERLINE is enabled at MC level and disabled at CPU level. This seems to be the correct flag settings for a system with only cluster level power gating. To me it looks like update_packing_doma

Re: [RFC 3/6] sched: pack small tasks

2012-11-09 Thread Morten Rasmussen
On Fri, Nov 02, 2012 at 10:53:47AM +, Santosh Shilimkar wrote: > On Monday 29 October 2012 06:42 PM, Vincent Guittot wrote: > > On 24 October 2012 17:20, Santosh Shilimkar > > wrote: > >> Vincent, > >> > >> Few comments/questions. > >> > >> > >> On Sunday 07 October 2012 01:13 PM, Vincent Gui

Re: [RFC 3/6] sched: pack small tasks

2012-11-02 Thread Santosh Shilimkar
On Monday 29 October 2012 06:42 PM, Vincent Guittot wrote: On 24 October 2012 17:20, Santosh Shilimkar wrote: Vincent, Few comments/questions. On Sunday 07 October 2012 01:13 PM, Vincent Guittot wrote: During sched_domain creation, we define a pack buddy CPU if available. On a system that

Re: [RFC 3/6] sched: pack small tasks

2012-10-29 Thread Vincent Guittot
On 24 October 2012 17:20, Santosh Shilimkar wrote: > Vincent, > > Few comments/questions. > > > On Sunday 07 October 2012 01:13 PM, Vincent Guittot wrote: >> >> During sched_domain creation, we define a pack buddy CPU if available. >> >> On a system that share the powerline at all level, the buddy

Re: [RFC 3/6] sched: pack small tasks

2012-10-24 Thread Santosh Shilimkar
Vincent, Few comments/questions. On Sunday 07 October 2012 01:13 PM, Vincent Guittot wrote: During sched_domain creation, we define a pack buddy CPU if available. On a system that share the powerline at all level, the buddy is set to -1 On a dual clusters / dual cores system which can powerga