First I need to understand how Magento cron works.
I know how cron works on linux, using
I know I need to set up Magento’s cron.php to run periodically
But when I define cron within magento config file, how does they match that they should be run?
Because if set my cron.php to run every 15 min (
0,15,30,45 * * * *) and I have a Magento cron
<schedule><cron_expr>10 * * * *</cron_expr></schedule> for example.
How will it match/work?
By the way, how could I test that my cron works without waiting a long time?