Further than setting MAXN power mode, did you later maxed the clocks with:
sudo jetson_clocks
Sorry I only have an AGX Orin running a standard L4T R35.3.1 from NVME for trying.
I built and installed with:
cd ~/Desktop
git clone --recursive https://github.com/glmark2/glmark2.git
cd glmark2
# Using meson 1.2.1
meson setup build -Dflavors=x11-gl,x11-glesv2 --prefix=/home/nvidia/Desktop/glmark2-install
ninja -C build
ninja -C build install
cd ../glmark2-install/bin
./glmark2
./glmark2-es2
For reference, glmark2 gave score 3644, all tests passed, while glmark2-es2 returned score 3329 but with tests conditionals, function and loop failing to run (no idea what is the root cause).
Not sure, but I’d advise to have similar disks for rootfs (performance may vary a lot even for reading if using different SD cards) and use same display monitor for benchmarking.
Someone more skilled may better help.