Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

On Thu, 20 Aug 2020 at 22:36, Vincent Guittot wrote: > > On Thu, 20 Aug 2020 at 16:28, Jiang Biao wrote: > > > > On Thu, 20 Aug 2020 at 20:46, Vincent Guittot > > wrote: > > > > > > On Thu, 20 Aug 2020 at 13:28, benbjiang(蒋彪) wrote: > > > > > > > > > > > > > > > > > On Aug 20, 2020, at 3:35 PM,

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

On Thu, 20 Aug 2020 at 16:28, Jiang Biao wrote: > > On Thu, 20 Aug 2020 at 20:46, Vincent Guittot > wrote: > > > > On Thu, 20 Aug 2020 at 13:28, benbjiang(蒋彪) wrote: > > > > > > > > > > > > > On Aug 20, 2020, at 3:35 PM, Vincent Guittot > > > > wrote: > > > > > > > > On Thu, 20 Aug 2020 at 02:

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

On Thu, 20 Aug 2020 at 20:46, Vincent Guittot wrote: > > On Thu, 20 Aug 2020 at 13:28, benbjiang(蒋彪) wrote: > > > > > > > > > On Aug 20, 2020, at 3:35 PM, Vincent Guittot > > > wrote: > > > > > > On Thu, 20 Aug 2020 at 02:13, benbjiang(蒋彪) wrote: > > >> > > >> > > >> > > >>> On Aug 19, 2020, a

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

On Thu, 20 Aug 2020 at 13:28, benbjiang(蒋彪) wrote: > > > > > On Aug 20, 2020, at 3:35 PM, Vincent Guittot > > wrote: > > > > On Thu, 20 Aug 2020 at 02:13, benbjiang(蒋彪) wrote: > >> > >> > >> > >>> On Aug 19, 2020, at 10:55 PM, Vincent Guittot > >>> wrote: > >>> > >>> On Wed, 19 Aug 2020 at 16

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

> On Aug 20, 2020, at 3:35 PM, Vincent Guittot > wrote: > > On Thu, 20 Aug 2020 at 02:13, benbjiang(蒋彪) wrote: >> >> >> >>> On Aug 19, 2020, at 10:55 PM, Vincent Guittot >>> wrote: >>> >>> On Wed, 19 Aug 2020 at 16:27, benbjiang(蒋彪) wrote: > On Aug 19, 2020, at 7:

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

On Thu, 20 Aug 2020 at 02:13, benbjiang(蒋彪) wrote: > > > > > On Aug 19, 2020, at 10:55 PM, Vincent Guittot > > wrote: > > > > On Wed, 19 Aug 2020 at 16:27, benbjiang(蒋彪) wrote: > >> > >> > >> > >>> On Aug 19, 2020, at 7:55 PM, Dietmar Eggemann > >>> wrote: > >>> > >>> On 19/08/2020 13:05, Vin

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

> On Aug 19, 2020, at 10:55 PM, Vincent Guittot > wrote: > > On Wed, 19 Aug 2020 at 16:27, benbjiang(蒋彪) wrote: >> >> >> >>> On Aug 19, 2020, at 7:55 PM, Dietmar Eggemann >>> wrote: >>> >>> On 19/08/2020 13:05, Vincent Guittot wrote: On Wed, 19 Aug 2020 at 12:46, Dietmar Eggemann

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

On Wed, 19 Aug 2020 at 16:27, benbjiang(蒋彪) wrote: > > > > > On Aug 19, 2020, at 7:55 PM, Dietmar Eggemann > > wrote: > > > > On 19/08/2020 13:05, Vincent Guittot wrote: > >> On Wed, 19 Aug 2020 at 12:46, Dietmar Eggemann > >> wrote: > >>> > >>> On 17/08/2020 14:05, benbjiang(蒋彪) wrote: >

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

> On Aug 19, 2020, at 7:55 PM, Dietmar Eggemann > wrote: > > On 19/08/2020 13:05, Vincent Guittot wrote: >> On Wed, 19 Aug 2020 at 12:46, Dietmar Eggemann >> wrote: >>> >>> On 17/08/2020 14:05, benbjiang(蒋彪) wrote: > On Aug 17, 2020, at 4:57 PM, Dietmar Eggemann > wrot

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

> On Aug 19, 2020, at 6:46 PM, Dietmar Eggemann > wrote: > > On 17/08/2020 14:05, benbjiang(蒋彪) wrote: >> >> >>> On Aug 17, 2020, at 4:57 PM, Dietmar Eggemann >>> wrote: >>> >>> On 14/08/2020 01:55, benbjiang(蒋彪) wrote: Hi, > On Aug 13, 2020, at 2:39 AM, Dietmar Eggemann

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

On 19/08/2020 13:05, Vincent Guittot wrote: > On Wed, 19 Aug 2020 at 12:46, Dietmar Eggemann > wrote: >> >> On 17/08/2020 14:05, benbjiang(蒋彪) wrote: >>> >>> On Aug 17, 2020, at 4:57 PM, Dietmar Eggemann wrote: On 14/08/2020 01:55, benbjiang(蒋彪) wrote: > Hi, > >>

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

On Wed, 19 Aug 2020 at 12:46, Dietmar Eggemann wrote: > > On 17/08/2020 14:05, benbjiang(蒋彪) wrote: > > > > > >> On Aug 17, 2020, at 4:57 PM, Dietmar Eggemann > >> wrote: > >> > >> On 14/08/2020 01:55, benbjiang(蒋彪) wrote: > >>> Hi, > >>> > On Aug 13, 2020, at 2:39 AM, Dietmar Eggemann >

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

On 17/08/2020 14:05, benbjiang(蒋彪) wrote: > > >> On Aug 17, 2020, at 4:57 PM, Dietmar Eggemann >> wrote: >> >> On 14/08/2020 01:55, benbjiang(蒋彪) wrote: >>> Hi, >>> On Aug 13, 2020, at 2:39 AM, Dietmar Eggemann wrote: On 12/08/2020 05:19, benbjiang(蒋彪) wrote: > Hi, >>>

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

> On Aug 17, 2020, at 4:57 PM, Dietmar Eggemann > wrote: > > On 14/08/2020 01:55, benbjiang(蒋彪) wrote: >> Hi, >> >>> On Aug 13, 2020, at 2:39 AM, Dietmar Eggemann >>> wrote: >>> >>> On 12/08/2020 05:19, benbjiang(蒋彪) wrote: Hi, > On Aug 11, 2020, at 11:54 PM, Dietmar Eggeman

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

On 14/08/2020 01:55, benbjiang(蒋彪) wrote: > Hi, > >> On Aug 13, 2020, at 2:39 AM, Dietmar Eggemann >> wrote: >> >> On 12/08/2020 05:19, benbjiang(蒋彪) wrote: >>> Hi, >>> On Aug 11, 2020, at 11:54 PM, Dietmar Eggemann wrote: On 11/08/2020 02:41, benbjiang(蒋彪) wrote: > Hi,

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

Hi, > On Aug 13, 2020, at 2:39 AM, Dietmar Eggemann > wrote: > > On 12/08/2020 05:19, benbjiang(蒋彪) wrote: >> Hi, >> >>> On Aug 11, 2020, at 11:54 PM, Dietmar Eggemann >>> wrote: >>> >>> On 11/08/2020 02:41, benbjiang(蒋彪) wrote: Hi, > On Aug 10, 2020, at 9:24 PM, Dietmar Egge

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

On 12/08/2020 05:19, benbjiang(蒋彪) wrote: > Hi, > >> On Aug 11, 2020, at 11:54 PM, Dietmar Eggemann >> wrote: >> >> On 11/08/2020 02:41, benbjiang(蒋彪) wrote: >>> Hi, >>> On Aug 10, 2020, at 9:24 PM, Dietmar Eggemann wrote: On 06/08/2020 17:52, benbjiang(蒋彪) wrote: > Hi,

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

Hi, > On Aug 11, 2020, at 11:54 PM, Dietmar Eggemann > wrote: > > On 11/08/2020 02:41, benbjiang(蒋彪) wrote: >> Hi, >> >>> On Aug 10, 2020, at 9:24 PM, Dietmar Eggemann >>> wrote: >>> >>> On 06/08/2020 17:52, benbjiang(蒋彪) wrote: Hi, > On Aug 6, 2020, at 9:29 PM, Dietmar Egge

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

On 11/08/2020 02:41, benbjiang(蒋彪) wrote: > Hi, > >> On Aug 10, 2020, at 9:24 PM, Dietmar Eggemann >> wrote: >> >> On 06/08/2020 17:52, benbjiang(蒋彪) wrote: >>> Hi, >>> On Aug 6, 2020, at 9:29 PM, Dietmar Eggemann wrote: On 03/08/2020 13:26, benbjiang(蒋彪) wrote: >

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

Hi, > On Aug 10, 2020, at 9:24 PM, Dietmar Eggemann > wrote: > > On 06/08/2020 17:52, benbjiang(蒋彪) wrote: >> Hi, >> >>> On Aug 6, 2020, at 9:29 PM, Dietmar Eggemann >>> wrote: >>> >>> On 03/08/2020 13:26, benbjiang(蒋彪) wrote: > On Aug 3, 2020, at 4:16 PM, Dietmar Eggemann

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

On 06/08/2020 17:52, benbjiang(蒋彪) wrote: > Hi, > >> On Aug 6, 2020, at 9:29 PM, Dietmar Eggemann >> wrote: >> >> On 03/08/2020 13:26, benbjiang(蒋彪) wrote: >>> >>> On Aug 3, 2020, at 4:16 PM, Dietmar Eggemann wrote: On 01/08/2020 04:32, Jiang Biao wrote: > From: Jiang

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

On 03/08/2020 13:26, benbjiang(蒋彪) wrote: > > >> On Aug 3, 2020, at 4:16 PM, Dietmar Eggemann >> wrote: >> >> On 01/08/2020 04:32, Jiang Biao wrote: >>> From: Jiang Biao >>> >>> No need to preempt when there are only one runable CFS task with >>> other IDLE tasks on runqueue. The only one CFS

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

Hi, > On Aug 6, 2020, at 9:29 PM, Dietmar Eggemann wrote: > > On 03/08/2020 13:26, benbjiang(蒋彪) wrote: >> >> >>> On Aug 3, 2020, at 4:16 PM, Dietmar Eggemann >>> wrote: >>> >>> On 01/08/2020 04:32, Jiang Biao wrote: From: Jiang Biao No need to preempt when there are only

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable(Internet mail)

> On Aug 3, 2020, at 4:16 PM, Dietmar Eggemann wrote: > > On 01/08/2020 04:32, Jiang Biao wrote: >> From: Jiang Biao >> >> No need to preempt when there are only one runable CFS task with >> other IDLE tasks on runqueue. The only one CFS task would always >> be picked in that case. >> >> Sig

Re: [PATCH] sched/fair: reduce preemption with IDLE tasks runable

On 01/08/2020 04:32, Jiang Biao wrote: > From: Jiang Biao > > No need to preempt when there are only one runable CFS task with > other IDLE tasks on runqueue. The only one CFS task would always > be picked in that case. > > Signed-off-by: Jiang Biao > --- > kernel/sched/fair.c | 2 +- > 1 file

[PATCH] sched/fair: reduce preemption with IDLE tasks runable

From: Jiang Biao No need to preempt when there are only one runable CFS task with other IDLE tasks on runqueue. The only one CFS task would always be picked in that case. Signed-off-by: Jiang Biao --- kernel/sched/fair.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kerne