Jetpack 4.4: Are two core disabled?

I have recently bought a Jetson TX2 and installed Jetpack 4.4.

I installed jetson-stats to check the board performance. I found that two cores run (0%) even the rest four cores run at about 100%. Please check the below figure for further information (It is running with nvpmodel Max-N).

I tried to check whether all core are running by the following.

nvidia@nvidia:/sys/devices/system/cpu$ cat cpu0/online
1
nvidia@nvidia:/sys/devices/system/cpu$ cat cpu1/online 
1
nvidia@nvidia:/sys/devices/system/cpu$ cat cpu2/online 
1
nvidia@nvidia:/sys/devices/system/cpu$ cat cpu3/online 
1
nvidia@nvidia:/sys/devices/system/cpu$ cat cpu4/online
1
nvidia@nvidia:/sys/devices/system/cpu$ cat cpu5/online 
1

I have tried to search on this site and found two topics (Jetpack 3, Jetpack 4.3) related to this behavior but it did not help me clear my concern.
I have also found another useful link about nvpmodel. However, following this link does not help me at all.

Are two core disabled?
If so, please help me to turn it on.

Hi,
These are Denver cores. For using them, you would need to schedule tasks manually. Please refer to
https://elinux.org/Jetson/L4T/r32.4.x_patches
[TX2] Denver cores not working on TX2