Comments (1)
FWIW, my code for doing this for various RPi hardware (in this project) is:
# Set a reasonable GPU memory allocation
# Determine total physical memory
# System Memory
sysmem="`free -m | grep Mem: | awk '$1=$1' | cut -f 2 -d " "`"
# GPU Memory
gpumem="`sudo raspi-config nonint get_config_var gpu_mem /boot/config.txt`"
# Total Mem
physmem=$((gpumem + sysmem))
if [ "$physmem" -lt "500" ]; then
split=96
else
if [ "$physmem" -lt "1000" ]; then
split=192
else
split=256
fi
fi
# Ask whether there's a custom split desired
echo -n "Enter a custom gpu split if desired [gpu memory in MB] or [Enter] to use recommended split"
read
if [ "$REPLY" != "" ]; then
if [ "$REPLY" -ge "64" -a "$REPLY" -le "512" ]; then
split="$REPLY"
fi
fi
# Set the split
if [ "`raspi-config nonint get_config_var gpu_mem /boot/config.txt`" -lt "$split" ]; then
echo "Setting gpu_mem allocation to "$split"MB"
raspi-config nonint do_memory_split "$split"
fi
from pi_video_looper.
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from pi_video_looper.