Re: [PATCH 0/6] sched/fair: Compute capacity invariant load/utilization tracking

On 07/09/15 13:42, Peter Zijlstra wrote: > On Mon, Aug 31, 2015 at 11:24:49AM +0200, Peter Zijlstra wrote: > >> A quick run here gives: >> >> IVB-EP (2*20*2): > > As noted by someone; that should be 2*10*2, for a total of 40 cpus in > this machine. > >> >> perf stat --null --repeat 10 -- perf

Re: [PATCH 0/6] sched/fair: Compute capacity invariant load/utilization tracking

On Mon, Sep 07, 2015 at 02:42:20PM +0200, Peter Zijlstra wrote: > I'm of a mind to apply these patches; with two patches on top, which > I'll post shortly. --- Subject: sched: Optimize __update_load_avg() From: Peter Zijlstra Date: Mon Sep 7 15:09:15 CEST 2015 Prior to this patch; the line:

Re: [PATCH 0/6] sched/fair: Compute capacity invariant load/utilization tracking

On Mon, Sep 07, 2015 at 02:42:20PM +0200, Peter Zijlstra wrote: > I'm of a mind to apply these patches; with two patches on top, which > I'll post shortly. --- Subject: sched: Rename scale() From: Peter Zijlstra Date: Mon Sep 7 15:05:42 CEST 2015 Rename scale() to cap_scale() to better reflect

Re: [PATCH 0/6] sched/fair: Compute capacity invariant load/utilization tracking

On Mon, Aug 31, 2015 at 11:24:49AM +0200, Peter Zijlstra wrote: > A quick run here gives: > > IVB-EP (2*20*2): As noted by someone; that should be 2*10*2, for a total of 40 cpus in this machine. > > perf stat --null --repeat 10 -- perf bench sched messaging -g 50 -l 5000 > > Before:

Re: [PATCH 0/6] sched/fair: Compute capacity invariant load/utilization tracking

On Mon, Sep 07, 2015 at 02:42:20PM +0200, Peter Zijlstra wrote: > I'm of a mind to apply these patches; with two patches on top, which > I'll post shortly. --- Subject: sched: Optimize __update_load_avg() From: Peter Zijlstra Date: Mon Sep 7 15:09:15 CEST 2015 Prior to

Re: [PATCH 0/6] sched/fair: Compute capacity invariant load/utilization tracking

On 07/09/15 13:42, Peter Zijlstra wrote: > On Mon, Aug 31, 2015 at 11:24:49AM +0200, Peter Zijlstra wrote: > >> A quick run here gives: >> >> IVB-EP (2*20*2): > > As noted by someone; that should be 2*10*2, for a total of 40 cpus in > this machine. > >> >> perf stat --null --repeat 10 -- perf

Re: [PATCH 0/6] sched/fair: Compute capacity invariant load/utilization tracking

On Mon, Sep 07, 2015 at 02:42:20PM +0200, Peter Zijlstra wrote: > I'm of a mind to apply these patches; with two patches on top, which > I'll post shortly. --- Subject: sched: Rename scale() From: Peter Zijlstra Date: Mon Sep 7 15:05:42 CEST 2015 Rename scale() to

Re: [PATCH 0/6] sched/fair: Compute capacity invariant load/utilization tracking

On Mon, Aug 31, 2015 at 11:24:49AM +0200, Peter Zijlstra wrote: > A quick run here gives: > > IVB-EP (2*20*2): As noted by someone; that should be 2*10*2, for a total of 40 cpus in this machine. > > perf stat --null --repeat 10 -- perf bench sched messaging -g 50 -l 5000 > > Before:

Re: [PATCH 0/6] sched/fair: Compute capacity invariant load/utilization tracking

On 08/31/2015 11:24 AM, Peter Zijlstra wrote: On Fri, Aug 14, 2015 at 05:23:08PM +0100, Morten Rasmussen wrote: Target: ARM TC2 A7-only (x3) Test: hackbench -g 25 --threads -l 1 Before After 315.545 313.408 -0.68% Target: Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz Test: hackbench -g 25

Re: [PATCH 0/6] sched/fair: Compute capacity invariant load/utilization tracking

On 08/31/2015 11:24 AM, Peter Zijlstra wrote: On Fri, Aug 14, 2015 at 05:23:08PM +0100, Morten Rasmussen wrote: Target: ARM TC2 A7-only (x3) Test: hackbench -g 25 --threads -l 1 Before After 315.545 313.408 -0.68% Target: Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz Test: hackbench -g 25

Re: [PATCH 0/6] sched/fair: Compute capacity invariant load/utilization tracking

On Fri, Aug 14, 2015 at 05:23:08PM +0100, Morten Rasmussen wrote: > Target: ARM TC2 A7-only (x3) > Test: hackbench -g 25 --threads -l 1 > > BeforeAfter > 315.545 313.408 -0.68% > > Target: Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz > Test: hackbench -g 25 --threads -l 1000 (avg

Re: [PATCH 0/6] sched/fair: Compute capacity invariant load/utilization tracking

On Fri, Aug 14, 2015 at 05:23:08PM +0100, Morten Rasmussen wrote: > Target: ARM TC2 A7-only (x3) > Test: hackbench -g 25 --threads -l 1 > > BeforeAfter > 315.545 313.408 -0.68% > > Target: Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz > Test: hackbench -g 25 --threads -l 1000 (avg

Re: [PATCH 0/6] sched/fair: Compute capacity invariant load/utilization tracking

On Mon, Aug 17, 2015 at 12:29:51PM +0100, Morten Rasmussen wrote: > On Sun, Aug 16, 2015 at 10:46:05PM +0200, Peter Zijlstra wrote: > > On Fri, Aug 14, 2015 at 05:23:08PM +0100, Morten Rasmussen wrote: > > > Target: ARM TC2 A7-only (x3) > > > Test: hackbench -g 25 --threads -l 1 > > > > > >

Re: [PATCH 0/6] sched/fair: Compute capacity invariant load/utilization tracking

On Sun, Aug 16, 2015 at 10:46:05PM +0200, Peter Zijlstra wrote: > On Fri, Aug 14, 2015 at 05:23:08PM +0100, Morten Rasmussen wrote: > > Target: ARM TC2 A7-only (x3) > > Test: hackbench -g 25 --threads -l 1 > > > > Before After > > 315.545 313.408 -0.68% > > > > Target: Intel(R)

Re: [PATCH 0/6] sched/fair: Compute capacity invariant load/utilization tracking

On Mon, Aug 17, 2015 at 12:29:51PM +0100, Morten Rasmussen wrote: On Sun, Aug 16, 2015 at 10:46:05PM +0200, Peter Zijlstra wrote: On Fri, Aug 14, 2015 at 05:23:08PM +0100, Morten Rasmussen wrote: Target: ARM TC2 A7-only (x3) Test: hackbench -g 25 --threads -l 1 BeforeAfter

Re: [PATCH 0/6] sched/fair: Compute capacity invariant load/utilization tracking

On Sun, Aug 16, 2015 at 10:46:05PM +0200, Peter Zijlstra wrote: On Fri, Aug 14, 2015 at 05:23:08PM +0100, Morten Rasmussen wrote: Target: ARM TC2 A7-only (x3) Test: hackbench -g 25 --threads -l 1 Before After 315.545 313.408 -0.68% Target: Intel(R) Core(TM) i5 CPU M

Re: [PATCH 0/6] sched/fair: Compute capacity invariant load/utilization tracking

On Fri, Aug 14, 2015 at 05:23:08PM +0100, Morten Rasmussen wrote: > Target: ARM TC2 A7-only (x3) > Test: hackbench -g 25 --threads -l 1 > > BeforeAfter > 315.545 313.408 -0.68% > > Target: Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz > Test: hackbench -g 25 --threads -l 1000 (avg

Re: [PATCH 0/6] sched/fair: Compute capacity invariant load/utilization tracking

On Fri, Aug 14, 2015 at 05:23:08PM +0100, Morten Rasmussen wrote: Target: ARM TC2 A7-only (x3) Test: hackbench -g 25 --threads -l 1 BeforeAfter 315.545 313.408 -0.68% Target: Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz Test: hackbench -g 25 --threads -l 1000 (avg of 10)

[PATCH 0/6] sched/fair: Compute capacity invariant load/utilization tracking

Per-entity load-tracking currently only compensates for frequency scaling for utilization tracking. This patch set extends this compensation to load as well, and adds compute capacity (different microarchitectures and/or max frequency/P-state) invariance to utilization. The former prevents

[PATCH 0/6] sched/fair: Compute capacity invariant load/utilization tracking

Per-entity load-tracking currently only compensates for frequency scaling for utilization tracking. This patch set extends this compensation to load as well, and adds compute capacity (different microarchitectures and/or max frequency/P-state) invariance to utilization. The former prevents