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#!/bin/bash
die() { printf "%s: Error: %s\n" "$0" "$*" >&2; exit 1; }
# Test DEVICE WRITE OPS BY WRITEOPS
test_write_ops()
{
if ! [ -e "$1" ]
then
mkdir -p "$(dirname "$1")"
sync
begin=$(date +%s%N)
dd if=/dev/urandom of="$DIR"/urandom.out bs=1M count=300
sync
end=$(date +%s%N)
ops=$(( (end - begin) / 1000000000 ))
rm "$DIR"/urandom.out
echo "$ops" > "$1"
fi
cat "$1"
}
CMD=firefox
UNIT=$CMD
DIR=~/.mozilla
READ_OPS=1G
WRITE_OPS=$READ_OPS
CONFDIR=$HOME/.config/firestart
if [ -e "$CONFDIR"/conf ]
then
. "$CONFDIR"/conf
fi
WRITE_OPS=$(test_write_ops "$CONFDIR"/diskspeed.dat)
WRITE_OPS=${WRITE_OPS%.*}
READ_OPS=$WRITE_OPS
[ -e "$DIR" ] || die "does not exist: $DIR"
[ -d "$DIR" ] || die "not a directory: $DIR"
DEV=$(echo $(findmnt --target "$DIR" -o MAJ:MIN -n))
[ "$DEV" ] || die "could not determine backing device for $DIR"
IOReadIOPSMax="$DEV $READ_OPS"
IOWriteIOPSMax="$DEV $WRITE_OPS"
sed -e "s/^IOReadIOPSMax *=.*/IOReadIOPSMax = $IOReadIOPSMax/" \
-e "s/^IOWriteIOPSMax *=.*/IOWriteIOPSMax = $IOWriteIOPSMax/" \
< firefox@.service.in > firefox@.service
set -x
systemctl --user link "$PWD"/firefox@.service
systemctl --user link "$PWD"/ioslay@.service
systemctl --user daemon-reload
systemctl --user start "firefox@$DISPLAY"
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