Will there be parallel execution in WP Cron?

Question

Task Schedulers

Let's say wp-cron runs a task every 5 minutes. What happens if it takes more than 5 minutes to complete - will the second instance run in parallel with the first or will it only start if the first has already completed?
PS wp-cron works through the crontab command php -f ..../wp-cron.php, the script execution time on the server is not limited.

Answer 1

will only run if the first one has already completed