A script to move baloo to a cgroup where you can limit its disk usage!

baloo-nice

#!/bin/bash
#baloo-nice by Al Williams

RLIMIT=1048576   # bps limit (read)
WLIMIT=1048576   # bps limit (write)
DEVICES="8 252 253 259"
SEARCH=baloo

if [ ! -d /sys/fs/cgroup/blkio/baloo ]
then
  mkdir /sys/fs/cgroup/blkio/baloo    # assume you need to be root to do this
fi

for I in $DEVICES
do
  echo "$I:0 $RLIMIT" >/sys/fs/cgroup/blkio/baloo/blkio.throttle.read_bps_device
  echo "$I:0 $WLIMIT" >/sys/fs/cgroup/blkio/baloo/blkio.throttle.write_bps_device
done
for I in `pgrep $SEARCH`
do
  echo $I >/sys/fs/cgroup/blkio/baloo/cgroup.procs
done
exit 0

You can also limit memory... see https://gist.github.com/wd5gnr/9af32eff7fad5d4057b2698fb9606868

See https://medium.com/for-linux-users/slash-kde-baloos-disk-throughput-with-cgroups-dc67b43da01a?sk=4664dfdb238e0fb43e0a6776b50da00d