finding out how long munin plugins are taking to run

Munin data updates occasionally timeout due to long-running plugins. The munin-update log isn't very helpful. Here's a little bash script to find the offenders:

su - munin --shell=/bin/bash
for file in /etc/munin/plugins/*; do 
	time_start=`date +%s`; 
	$file > /dev/null 2>&1; 
	time_end=`date +%s`; 
	time_elapsed=$((time_end - time_start)); 
	echo "$file: $time_elapsed secs"; 
done

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