misc/archive/treenice.sh

   1 #!/bin/sh
   2 #
   3 # --- T2-COPYRIGHT-NOTE-BEGIN ---
   4 # This copyright note is auto-generated by scripts/Create-CopyPatch.
   5 #
   6 # T2 SDE: misc/archive/treenice.sh
   7 # Copyright (C) 2004 - 2020 The T2 SDE Project
   8 # Copyright (C) 1998 - 2003 ROCK Linux Project
   9 #
  10 # More information can be found in the files COPYING and README.
  11 #
  12 # This program is free software; you can redistribute it and/or modify
  13 # it under the terms of the GNU General Public License as published by
  14 # the Free Software Foundation; version 2 of the License. A copy of the
  15 # GNU General Public License can be found in the file COPYING.
  16 # --- T2-COPYRIGHT-NOTE-END ---
  17
  18 main() {
  19         renice $newpriority -p $1
  20         ls /proc/$1/task | xargs renice $newpriority -p
  21         for y in `cut -f1,4 -d' ' /proc/[0-9]*/stat | grep " $1\$" | cut -f1 -d' '`
  22         do main $y "$2  " ; done
  23 }
  24
  25 newpriority=$1
  26 shift
  27
  28 if [ $# = 0 ] ; then
  29         echo "Usage: $0 <new priority> <pid> [ <pid> [ ... ] ]"
  30         exit 1
  31 else
  32         for x ; do
  33                 for y in $( ps -e -o pid,comm | tail -n +2 |
  34                         awk "\$1 == \"$x\" || \$2 == \"$x\" { print \$1; }" )
  35                 do
  36                                 main $y ""
  37                 done
  38         done
  39 fi
  40
  41 exit 0