Keep files locked in memory by periodically restarting vmtouch

vmtouchpoll

#!/bin/bash

# vmtouchpoll: Keep some files locked in memory (including new files, dropping deleted files)

# Usage: vmtouchpoll '/path/to/some/files/*.idx'

# Works by periodically restarting vmtouch with a new set of files
# Implemented by Vitaly "_Vi" Shukela in 2015, License=MIT


F=($(eval echo $1))

vmtouch -L -m 2G "${F[@]}"&
P1=$!
P2=0
disown

trap 'kill $P1; [[ $P2 -gt 0 ]] && kill $P2' EXIT

while true; do
    sleep 55;
    F=($(eval echo $1))

    vmtouch -q -L -m 2G "${F[@]}"&
    P2=$!
    disown

    sleep 5;
    kill $P1
    P1=$P2
    P2=0
done