Limit Google Chrome Memory Hungry Eating up 32GB of ram

chrome-cgroup.service

[Unit]
Description=Chrome browsers cgroup
After=multi-user.target

[Service]
ExecStart=/bin/bash -x -c '[ -d /sys/fs/cgroup/memory/user.slice/chrome ] || /bin/mkdir /sys/fs/cgroup/memory/user.slice/chrome; chmod 766 /sys/fs/cgroup/memory/user.slice/chrome/tasks;  echo "Satrting"; CHROME_MEMORY_LIMIT_IN_BYTES=${CHROME_MEMORY_LIMIT_IN_BYTES:-5368709120}; echo "${CHROME_MEMORY_LIMIT_IN_BYTES}" >/sys/fs/cgroup/memory/user.slice/chrome/memory.limit_in_bytes; echo "Setting CHROME_MEMORY_LIMIT_IN_BYTES=${CHROME_MEMORY_LIMIT_IN_BYTES}";'
;ExecStart=/bin/mkdir /sys/fs/cgroup/memory/user.slice/chrome
;ExecStop=/bin/rm /sys/fs/cgroup/memory/user.slice/chrome
EnvironmentFile=-/etc/environment
Type=oneshot

[Install]
WantedBy=multi-user.target

Install systemd unit to initialize the cgroup

sudo wget https://gist.githubusercontent.com/ar45/3c977311c9b8f32948eeca25a7ba2198/raw/chrome-cgroup.service \
  -O /etc/systemd/system/chrome-cgroup.service
sudo systemctl daemon-reload
sudo systemctl enable chrome-cgroup.service
sudo systemctl start chrome-cgroup.service

Add the following line to /usr/bin/google-chrome or wherever your chrome is installed at the beginning of the shell script.

echo $$ >/sys/fs/cgroup/memory/user.slice/chrome/tasks

To move existing chrome processes to the new cgroup, do

for pid in `ps --no-headers -fC chrome | awk '{print $2}'`;
do
    echo $pid | tee /sys/fs/cgroup/memory/user.slice/chrome/tasks;
done;

Set environment variable

echo CHROME_MEMORY_LIMIT_IN_BYTES=5G | sudo tee -a /etc/environment