Android peak memory detection

Current memory

Using adb command to detect current memory usage.

adb shell dumpsys meminfo your_app_name

Peak memory

Using following script to detect memory many times, and to count the peak memory usage.

MAX_MEM=0
COUNT=0
LOOP_NUM=10000

if [ -n "$1" ]; then
LOOP_NUM=$1
fi

while [ $COUNT -lt $LOOP_NUM ]
do
    MEM=$(adb shell dumpsys meminfo your_app_name | grep 'TOTAL PSS:' | awk -F ':' '{print $2}' | awk '{print $1}')
    COUNT=`expr $COUNT + 1`
    if [[ "$MEM" > "$MAX_MEM" ]]; then
        MAX_MEM=$MEM
        echo $COUNT: MAX_MEM=$MAX_MEM
    fi
    
    sleep 0.01
done