usr/src/tools/gk/gen_make.machines.sh

   1 #!/usr/bin/ksh93
   2 #
   3 # CDDL HEADER START
   4 #
   5 # The contents of this file are subject to the terms of the
   6 # Common Development and Distribution License (the "License").
   7 # You may not use this file except in compliance with the License.
   8 #
   9 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10 # or http://www.opensolaris.org/os/licensing.
  11 # See the License for the specific language governing permissions
  12 # and limitations under the License.
  13 #
  14 # When distributing Covered Code, include this CDDL HEADER in each
  15 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16 # If applicable, add the following below this CDDL HEADER, with the
  17 # fields enclosed by brackets "[]" replaced with your own identifying
  18 # information: Portions Copyright [yyyy] [name of copyright owner]
  19 #
  20 # CDDL HEADER END
  21 #
  22 #
  23 # Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  24 # Use is subject to license terms.
  25 #
  26 # script to generate example .make.machines for build users
  27 #
  28
  29
  30 PATH=/usr/bin:/usr/sbin
  31
  32 THISHOST=$(uname -n)
  33
  34 cpus=$(psrinfo | grep on-line | wc -l)
  35 max=$(((cpus + 1) * 2))
  36
  37 EXISTING=$(grep "^$THISHOST" $HOME/.make.machines |awk -F"=" '{print $2}')
  38
  39 if [[ -n "$EXISTING" ]] then
  40         printf "Your existing \$HOME/.make.machines has a concurrency "
  41         printf "setting of $EXISTING for host\n"
  42         printf "$THISHOST. If you wish to change the setting then this "
  43         printf "script suggests\nsetting concurrency to $max for a single-user "
  44         printf "machine. Multi-user machines might\nrequire different values.\n"
  45 else
  46         printf "$THISHOST max=$max\n" >> $HOME/.make.machines
  47         printf "dmake concurrency for host $THISHOST set to $max.\n"
  48 fi