macOS: Chrome: RAM disk for write intensive usage

.ramdisk.sh

#!/bin/sh
set -eu

SIZE=3299328 # 1.5GiB i.e. 2048 = 1MB
CACHE_PREFIX="${HOME}/Library/Application Support/Google/Chrome/"
SYNC_PREFIX=${HOME}/RAM/Chrome/

rm -rf   "${CACHE_PREFIX}"
mkdir -p "${CACHE_PREFIX}"
mkdir -p "${SYNC_PREFIX}"
device=$(hdiutil attach -nomount ram://${SIZE})
newfs_hfs -v "Chrome Cache" ${device}
mount -o nobrowse -o noatime -t hfs ${device} "${CACHE_PREFIX}"
rsync -aru --exclude=.fseventsd "${SYNC_PREFIX}" "${CACHE_PREFIX}"
#defaults write com.google.Chrome DiskCacheSize -int 1610612736

crontab

SHELL=/bin/bash
MAILTO=$USER

01  */3  *  *  *   rsync -ar --del --exclude=.fseventsd "$HOME/Library/Application Support/Google/Chrome" $HOME/RAM/