On Thu, Feb 08, 2018 at 02:19:55PM -0800, Rohit Jain wrote:
> This patch introduces the sysctl for sched_domain based migration costs.
> These in turn can be used for performance tuning of workloads.
Smells like a bad attempt to (again) revive commit:
0437e109e184 ("sched: zap the migration
On Thu, Feb 08, 2018 at 02:19:55PM -0800, Rohit Jain wrote:
> This patch introduces the sysctl for sched_domain based migration costs.
> These in turn can be used for performance tuning of workloads.
Smells like a bad attempt to (again) revive commit:
0437e109e184 ("sched: zap the migration
On Fri, 2018-02-09 at 12:33 -0500, Steven Sistare wrote:
> On 2/9/2018 12:08 PM, Mike Galbraith wrote:
>
> > Shrug. It's bogus no mater what we do. Once Upon A Time, a cost
> > number was generated via measurement, but the end result was just as
> > bogus as a number pulled out of the ether.
On Fri, 2018-02-09 at 12:33 -0500, Steven Sistare wrote:
> On 2/9/2018 12:08 PM, Mike Galbraith wrote:
>
> > Shrug. It's bogus no mater what we do. Once Upon A Time, a cost
> > number was generated via measurement, but the end result was just as
> > bogus as a number pulled out of the ether.
On 2/9/2018 12:08 PM, Mike Galbraith wrote:
> On Fri, 2018-02-09 at 11:10 -0500, Steven Sistare wrote:
>> On 2/8/2018 10:54 PM, Mike Galbraith wrote:
>>> On Thu, 2018-02-08 at 14:19 -0800, Rohit Jain wrote:
This patch introduces the sysctl for sched_domain based migration costs.
These in
On 2/9/2018 12:08 PM, Mike Galbraith wrote:
> On Fri, 2018-02-09 at 11:10 -0500, Steven Sistare wrote:
>> On 2/8/2018 10:54 PM, Mike Galbraith wrote:
>>> On Thu, 2018-02-08 at 14:19 -0800, Rohit Jain wrote:
This patch introduces the sysctl for sched_domain based migration costs.
These in
On Fri, 2018-02-09 at 11:10 -0500, Steven Sistare wrote:
> On 2/8/2018 10:54 PM, Mike Galbraith wrote:
> > On Thu, 2018-02-08 at 14:19 -0800, Rohit Jain wrote:
> >> This patch introduces the sysctl for sched_domain based migration costs.
> >> These in turn can be used for performance tuning of
On Fri, 2018-02-09 at 11:10 -0500, Steven Sistare wrote:
> On 2/8/2018 10:54 PM, Mike Galbraith wrote:
> > On Thu, 2018-02-08 at 14:19 -0800, Rohit Jain wrote:
> >> This patch introduces the sysctl for sched_domain based migration costs.
> >> These in turn can be used for performance tuning of
On 2/8/2018 10:54 PM, Mike Galbraith wrote:
> On Thu, 2018-02-08 at 14:19 -0800, Rohit Jain wrote:
>> This patch introduces the sysctl for sched_domain based migration costs.
>> These in turn can be used for performance tuning of workloads.
>
> With this patch, we trade 1 completely bogus
On 2/8/2018 10:54 PM, Mike Galbraith wrote:
> On Thu, 2018-02-08 at 14:19 -0800, Rohit Jain wrote:
>> This patch introduces the sysctl for sched_domain based migration costs.
>> These in turn can be used for performance tuning of workloads.
>
> With this patch, we trade 1 completely bogus
On Thu, 2018-02-08 at 14:19 -0800, Rohit Jain wrote:
> This patch introduces the sysctl for sched_domain based migration costs.
> These in turn can be used for performance tuning of workloads.
With this patch, we trade 1 completely bogus constant (cost is really
highly variable) for 3, twiddling
On Thu, 2018-02-08 at 14:19 -0800, Rohit Jain wrote:
> This patch introduces the sysctl for sched_domain based migration costs.
> These in turn can be used for performance tuning of workloads.
With this patch, we trade 1 completely bogus constant (cost is really
highly variable) for 3, twiddling
This patch introduces the sysctl for sched_domain based migration costs.
These in turn can be used for performance tuning of workloads.
Signed-off-by: Rohit Jain
---
include/linux/sched/sysctl.h | 2 ++
kernel/sched/fair.c | 4 +++-
kernel/sched/topology.c
This patch introduces the sysctl for sched_domain based migration costs.
These in turn can be used for performance tuning of workloads.
Signed-off-by: Rohit Jain
---
include/linux/sched/sysctl.h | 2 ++
kernel/sched/fair.c | 4 +++-
kernel/sched/topology.c | 8
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