ryran · December 19, 2015 15:49 · ryran · Jul 11, 2013
diff --git a/memsum is for process inspection b/memsum is for process inspection
 #!/bin/bash
 # Uses pgrep, ps, and awk to sum the RSS & VSZ of any process names or PIDs passed to it
 function memsum {
  if [[ -z $1 ]]; then
    echo "memsum: requires at least one PID or [partial] process name"
    return 1
  fi
  local pid p
  until [[ -z $1 ]]; do
    if [[ $1 =~ ^[0-9]+$ ]]; then
      [[ -d /proc/$1 ]] && pid[$1]=$(</proc/$1/comm)
    else
      for p in $(pgrep $1); do
        pid[$p]=$(</proc/$p/comm)
      done
    fi
    shift
  done
  [[ -z ${pid[*]} ]] && { echo memsum: no processes or PIDs matched; return 1; }
  ps --no-header -orss,vsz ${!pid[*]} |
  awk '{ rss+=$1; vsz+=$2 } END { printf "Total RSS: %.1f MiB (%.2f GiB)\nTotal VSZ: %.0f MiB (%.2f GiB)\n", rss/1024, rss/1024/1024, vsz/1024, vsz/1024/1024 }'
  printf "\nProcesses matched: "; for p in ${!pid[*]}; do printf " ${pid[p]} ($p)"; done; printf "\n\n"
  pidstat -ruh -p $(echo ${!pid[*]} | sed 's/ /,/g') 1 1
 }
	#!/bin/bash
	# Uses pgrep, ps, and awk to sum the RSS & VSZ of any process names or PIDs passed to it
	function memsum {
	if [[ -z $1 ]]; then
	echo "memsum: requires at least one PID or [partial] process name"
	return 1
	fi
	local pid p
	until [[ -z $1 ]]; do
	if [[ $1 =~ ^[0-9]+$ ]]; then
	[[ -d /proc/$1 ]] && pid[$1]=$(</proc/$1/comm)
	else
	for p in $(pgrep $1); do
	pid[$p]=$(</proc/$p/comm)
	done
	fi
	shift
	done
	[[ -z ${pid[*]} ]] && { echo memsum: no processes or PIDs matched; return 1; }
	ps --no-header -orss,vsz ${!pid[*]} \|
	awk '{ rss+=$1; vsz+=$2 } END { printf "Total RSS: %.1f MiB (%.2f GiB)\nTotal VSZ: %.0f MiB (%.2f GiB)\n", rss/1024, rss/1024/1024, vsz/1024, vsz/1024/1024 }'
	printf "\nProcesses matched: "; for p in ${!pid[*]}; do printf " ${pid[p]} ($p)"; done; printf "\n\n"
	pidstat -ruh -p $(echo ${!pid[*]} \| sed 's/ /,/g') 1 1
	}