wt-nice

#!/bin/sh
# Copyright (C) 2015 Francois Gouget
#
# Runs the specified command with the lowest possible CPU and I/O priority.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
name0=`basename "$0"`

ionice=""
if type ionice >/dev/null 2>&1
then
    ionice="ionice -c 3"
fi

# On Mac OS X a niceness of 20 also lowers the I/O and network priorities.
# On other systems it gets rounded to 19.
exec nice -n 20 $ionice "$@"