Created
May 19, 2023 15:50
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Output the memory usage of a pid and measure the change.
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#!/usr/bin/env bash | |
## Output the memory usage of a pid and measure the change. | |
set -euo pipefail | |
pid=$1 | |
last_usage_mb=0 | |
while true; do | |
mem_usage=$(ps -p "$pid" -o size=) | |
usage_mb=$(bc <<< "scale = 2; $mem_usage / 1024") | |
change_mb=$(bc <<< "scale = 2; $usage_mb - $last_usage_mb") | |
if [[ $(bc <<< "$change_mb > 0") == 1 ]]; then | |
change_mb="+$change_mb" | |
fi | |
last_usage_mb="$usage_mb" | |
if [[ $usage_mb != 0 ]]; then | |
echo -ne "\r \r" | |
echo -n "Mem: $usage_mb MiB ($change_mb MiB/s)" | |
fi | |
sleep 1 | |
done |
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