Power Estimator and turning off DLA/PVA

[vikram.bhat]

Hello,

I was wondering if its possible to turn off the DLA and PVA on the Orin NX 8gb, in order to conserve power and potentially allocate it towards a higher frequency CPU/GPU.

I see on the power estimator here that having the dla/pva sliders set to off gives back some margin for power budget (which makes sense). I was wondering if that is a change that lives in the device tree somewhere, or if it can be done with a tool like nvpmodel or jetson_clocks.

When I run jetson_clocks --show I get:

SOC family:tegra234 
Online CPUs: 0-5
cpu0:  Online=1 Governor=performance MinFreq=729600 MaxFreq=1497600 CurrentFreq=1497600 IdleStates: WFI=1 c7=1 
cpu1:  Online=1 Governor=performance MinFreq=729600 MaxFreq=1497600 CurrentFreq=1497600 IdleStates: WFI=1 c7=1 
cpu2:  Online=1 Governor=performance MinFreq=729600 MaxFreq=1497600 CurrentFreq=1497600 IdleStates: WFI=1 c7=1 
cpu3:  Online=1 Governor=performance MinFreq=729600 MaxFreq=1497600 CurrentFreq=1497600 IdleStates: WFI=1 c7=1 
cpu4:  Online=1 Governor=performance MinFreq=729600 MaxFreq=1497600 CurrentFreq=1497600 IdleStates: WFI=1 c7=1 
cpu5:  Online=1 Governor=performance MinFreq=729600 MaxFreq=1497600 CurrentFreq=1497600 IdleStates: WFI=1 c7=1 
GPU MinFreq=306000000 MaxFreq=408000000 CurrentFreq=306000000
EMC MinFreq=204000000 MaxFreq=3199000000 CurrentFreq=665600000 FreqOverride=0
DLA0_CORE:   Online=1 MinFreq=0 MaxFreq=614400000 CurrentFreq=614400000
DLA0_FALCON: Online=1 MinFreq=0 MaxFreq=294400000 CurrentFreq=294400000
PVA0_VPS0: Online=1 MinFreq=0 MaxFreq=512000000 CurrentFreq=512000000
PVA0_AXI:  Online=1 MinFreq=0 MaxFreq=358400000 CurrentFreq=358400000
FAN Dynamic Speed control=active hwmon5_pwm1=255
NV Power Mode: 20W

Ideally I think I’d want the DLA and PVA cores to be Online=0?

[AastaLLL]

Hi,

DLA and PVA is a hardware-based process.
By default, it is OFF. It will only turn on if a job is assigned.

Thanks.