Re: [dpdk-dev] [PATCH v1] examples/power: fix oob frequency oscillations

2019-11-04 Thread Burakov, Anatoly
On 01-Nov-19 11:00 PM, Thomas Monjalon wrote: 29/10/2019 15:05, Hunt, David: On 27/10/2019 18:35, Thomas Monjalon wrote: 06/08/2019 13:18, Thomas Monjalon: 26/07/2019 12:15, Burakov, Anatoly: So it's biased towards scaling up quickly, but it's doing that over a period. Please correct me if i'

Re: [dpdk-dev] [PATCH v1] examples/power: fix oob frequency oscillations

2019-11-01 Thread Thomas Monjalon
29/10/2019 15:05, Hunt, David: > On 27/10/2019 18:35, Thomas Monjalon wrote: > > 06/08/2019 13:18, Thomas Monjalon: > >> 26/07/2019 12:15, Burakov, Anatoly: > >>> So it's biased towards scaling up quickly, but it's doing that over a > >>> period. Please correct me if i'm wrong as i'm not really fam

Re: [dpdk-dev] [PATCH v1] examples/power: fix oob frequency oscillations

2019-10-29 Thread Hunt, David
On 27/10/2019 18:35, Thomas Monjalon wrote: 06/08/2019 13:18, Thomas Monjalon: 26/07/2019 12:15, Burakov, Anatoly: So it's biased towards scaling up quickly, but it's doing that over a period. Please correct me if i'm wrong as i'm not really familiar with this codebase, but, assuming the wind

Re: [dpdk-dev] [PATCH v1] examples/power: fix oob frequency oscillations

2019-10-27 Thread Thomas Monjalon
06/08/2019 13:18, Thomas Monjalon: > 26/07/2019 12:15, Burakov, Anatoly: > > So it's biased towards scaling up quickly, but it's doing that over a > > period. Please correct me if i'm wrong as i'm not really familiar with > > this codebase, but, assuming the window size is long enough, you could

Re: [dpdk-dev] [PATCH v1] examples/power: fix oob frequency oscillations

2019-08-06 Thread Thomas Monjalon
26/07/2019 12:15, Burakov, Anatoly: > So it's biased towards scaling up quickly, but it's doing that over a > period. Please correct me if i'm wrong as i'm not really familiar with > this codebase, but, assuming the window size is long enough, you could > be missing opportunities to scale down?

Re: [dpdk-dev] [PATCH v1] examples/power: fix oob frequency oscillations

2019-07-26 Thread Burakov, Anatoly
On 24-Jul-19 2:18 PM, David Hunt wrote: The branch ratio algorithm in the vm_power_manager sample application can be very sensitive at patricular loads in a workload, causing oscillations between min and max frequency. For example, if a workload is at 50%, scaling up may change the ratio enough t

[dpdk-dev] [PATCH v1] examples/power: fix oob frequency oscillations

2019-07-24 Thread David Hunt
The branch ratio algorithm in the vm_power_manager sample application can be very sensitive at patricular loads in a workload, causing oscillations between min and max frequency. For example, if a workload is at 50%, scaling up may change the ratio enough that it immediately thinks it needs to scal