qxcv · January 16, 2020 19:03
diff --git a/peakmem.sh b/peakmem.sh
 #!/bin/bash
 max_mem=0
 while [ true ]; do
  # awk trick from https://stackoverflow.com/a/450821
  mem="$(free --giga | sed 's/ \+/ /g' | cut -d ' ' -f 3 | tail -n +2 | awk '{s+=$1} END {print s}')"
  if [ "$mem" -gt "$max_mem" ]; then
    max_mem="$mem"
    echo "new peak ${max_mem}GB at $(date)"
  fi
  sleep 0.1
 done
	#!/bin/bash
	max_mem=0
	while [ true ]; do
	# awk trick from https://stackoverflow.com/a/450821
	mem="$(free --giga \| sed 's/ \+/ /g' \| cut -d ' ' -f 3 \| tail -n +2 \| awk '{s+=$1} END {print s}')"
	if [ "$mem" -gt "$max_mem" ]; then
	max_mem="$mem"
	echo "new peak ${max_mem}GB at $(date)"
	fi
	sleep 0.1
	done