Re: [RFC PATCH 0/3] sched: Introduce Window Assisted Load Tracking

2016-10-31 Thread Vikram Mulukutla
On 2016-10-28 01:49, Peter Zijlstra wrote: On Fri, Oct 28, 2016 at 12:57:05AM -0700, Vikram Mulukutla wrote: On 2016-10-28 00:49, Peter Zijlstra wrote: >On Fri, Oct 28, 2016 at 12:10:39AM -0700, Vikram Mulukutla wrote: >>This RFC patch has been tested on live X86 machines with the following >>sa

Re: [RFC PATCH 0/3] sched: Introduce Window Assisted Load Tracking

2016-10-28 Thread Peter Zijlstra
On Fri, Oct 28, 2016 at 12:55:52AM -0700, Vikram Mulukutla wrote: > On 2016-10-28 00:29, Peter Zijlstra wrote: > >On Fri, Oct 28, 2016 at 12:10:39AM -0700, Vikram Mulukutla wrote: > >> > >>We propose Window-Assisted Load Tracking (WALT) as an alternative or > >>additional load tracking scheme in li

Re: [RFC PATCH 0/3] sched: Introduce Window Assisted Load Tracking

2016-10-28 Thread Peter Zijlstra
On Fri, Oct 28, 2016 at 12:57:05AM -0700, Vikram Mulukutla wrote: > On 2016-10-28 00:49, Peter Zijlstra wrote: > >On Fri, Oct 28, 2016 at 12:10:39AM -0700, Vikram Mulukutla wrote: > >>This RFC patch has been tested on live X86 machines with the following > >>sanity > >>and benchmark results (thanks

Re: [RFC PATCH 0/3] sched: Introduce Window Assisted Load Tracking

2016-10-28 Thread Vikram Mulukutla
On 2016-10-28 00:49, Peter Zijlstra wrote: On Fri, Oct 28, 2016 at 12:10:39AM -0700, Vikram Mulukutla wrote: This RFC patch has been tested on live X86 machines with the following sanity and benchmark results (thanks to Juri Lelli, Dietmar Eggeman, Patrick Bellasi for initial code reviews): (

Re: [RFC PATCH 0/3] sched: Introduce Window Assisted Load Tracking

2016-10-28 Thread Vikram Mulukutla
On 2016-10-28 00:29, Peter Zijlstra wrote: On Fri, Oct 28, 2016 at 12:10:39AM -0700, Vikram Mulukutla wrote: We propose Window-Assisted Load Tracking (WALT) as an alternative or additional load tracking scheme in lieu of or along with PELT, one that in our estimation better tracks task demand

Re: [RFC PATCH 0/3] sched: Introduce Window Assisted Load Tracking

2016-10-28 Thread Peter Zijlstra
On Fri, Oct 28, 2016 at 12:10:39AM -0700, Vikram Mulukutla wrote: > This RFC patch has been tested on live X86 machines with the following sanity > and benchmark results (thanks to Juri Lelli, Dietmar Eggeman, Patrick Bellasi > for initial code reviews): > > (Tested on an Intel i7 2nd generation C

Re: [RFC PATCH 0/3] sched: Introduce Window Assisted Load Tracking

2016-10-28 Thread Peter Zijlstra
On Fri, Oct 28, 2016 at 12:10:39AM -0700, Vikram Mulukutla wrote: > > We propose Window-Assisted Load Tracking (WALT) as an alternative or > additional > load tracking scheme in lieu of or along with PELT, one that in our estimation > better tracks task demand and CPU utilization especially for u