cgrt.sh

   1 #!/bin/bash
   2
   3 desired_rt_runtime_us=$1
   4 mygroup=${2:-$(awk -F: '$2 == "cpu,cpuacct" {print $3}' /proc/self/cgroup)}
   5
   6 [[ $desired_rt_runtime_us -gt 0 ]] || exit
   7 [[ $mygroup ]] || exit
   8 [[ $mygroup = / ]] && exit
   9
  10 echo "${0##*/}: setting cpu.rt_runtime_us for $mygroup" >&2
  11
  12 cgpath=
  13 IFS=/ read -ra cgroups <<< "${mygroup:1}"
  14
  15 for cg in "${cgroups[@]}"; do
  16     cgpath="${cgpath}/${cg}"
  17     echo "${0##*/}: $desired_rt_runtime_us -> /sys/fs/cgroup/cpu,cpuacct${cgpath}" >&2
  18 #    echo "$desired_rt_runtime_us" > /sys/fs/cgroup/cpu,cpuacct${cgpath}/cpu.rt_runtime_us
  19 done