michael@0: #!/bin/sh
michael@0: #
michael@0: # This Source Code Form is subject to the terms of the Mozilla Public
michael@0: # License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0: # file, You can obtain one at http://mozilla.org/MPL/2.0/.
michael@0: 
michael@0: # Treats the arguments as a command that is to be forked and observed;
michael@0: # e.g.,
michael@0: #
michael@0: #   watch.sh ./mozilla -f bloaturls.txt
michael@0: #
michael@0: # Periodically snap-shots the virtual memory info of the process, and
michael@0: # dumps the output to ``watch.out''
michael@0: 
michael@0: # Clear the output file
michael@0: OUTPUT_FILE=watch.out
michael@0: INTERVAL=10
michael@0: 
michael@0: while [ $# -gt 0 ]; do
michael@0:     case "$1" in
michael@0:     -o) OUTPUT_FILE=$2
michael@0:         shift 2
michael@0:         ;;
michael@0:     -i) INTERVAL=$2
michael@0:         shift 2
michael@0:         ;;
michael@0:     *)  break
michael@0:         ;;
michael@0:     esac
michael@0: done
michael@0: 
michael@0: rm -f ${OUTPUT_FILE}
michael@0: 
michael@0: echo "vmsize vmexe vmlib vmdata vmstk vmrss" > ${OUTPUT_FILE}
michael@0: 
michael@0: # treat the arguments as the command to execute
michael@0: $* &
michael@0: 
michael@0: # remember the process ID
michael@0: PID=$!
michael@0: 
michael@0: while [ -e /proc/${PID} ]; do
michael@0:     cat /proc/${PID}/status |\
michael@0:     awk '$1=="VmSize:" { vmsize = $2; }
michael@0: $1=="VmData:" { vmdata = $2; }
michael@0: $1=="VmStk:" { vmstk = $2; }
michael@0: $1=="VmExe:" { vmexe = $2; }
michael@0: $1=="VmLib:" { vmlib = $2; }
michael@0: $1=="VmRSS:" { vmrss = $2; }
michael@0: END { print vmsize, vmexe, vmlib, vmdata, vmstk, vmrss; }' >> ${OUTPUT_FILE}
michael@0:     sleep ${INTERVAL}
michael@0: done